Overall Green Volcanic eruption for Semeru
in Indonesia

Volcano Ash Advisories for air traffic

Although Volcano Ash Advisories (VAAC) are not intended for assessing humanitarian impact, the observations of the plume are relevant for understanding local impact. The actual impact (like ash fall) depends on the type of eruption and is not known.

Click on the messages list to visualize on the right the detailed text.



Volcanic Ash Advisory issued on 2023-05-19 at 18:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 19 0330 UTC move e.
  • Volcanic ash indiscernible on latest satellite img due to meteorological cloud. Intermittent emissions observation on webcam. Volcanic ash height and move based on satellite img, last observation before a break in coverage at a manual station ground report received 19 0236 UTC and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-19 at 12:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station reported at 19 0226 UTC move e.
  • Volcanic ash indiscernible on latest satellite img due to meteorological cloud. Intermittent puffs observation on webcam. Volcanic ash height and move based on satellite img, last observation before a break in coverage at a manual station ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-19 at 06:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ongoing discrete volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station reported at 19 0226 UTC move e.
  • Volcanic ash indiscernible on latest satellite img due to meteorological cloud. Ground report from 19 0226 UTC confirms emissions are ongoing. Volcanic ash height and movement based on himawari-9 img, ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-19 at 00:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ongoing discrete volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 19 0010 UTC move e.
  • Volcanic ash observation on latest visibility satellite img through thin high meteorological cloud. Recent ground report from 18 2217 UTC confirms emissions are ongoing. Volcanic ash height and movement based on himawari-9 img, ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-18 at 18:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 18 1130 UTC move se.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash height and movement based on himawari-9 imagery, ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-18 at 12:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 18/11300z move se.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash height and movement based on himawari-9 imagery, ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-18 at 06:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) observation at 18 0600 UTC move se.
  • Volcanic ash observation on current vis/rgb satellite img. Volcanic ash reported by cvghm to 800m above summit at 18/0122z. Height and forecast based on last observation before a break in coverage at a manual station ground report, surabaya 18 0000 UTC sounding, satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-18 at 00:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) observation at 18 0010 UTC move se.
  • Volcanic ash reported by cvghm to 800m above summit at 17/2346z. Volcanic ash observation on current rgb satellite img in clear conditions move se to e. Height and forecast based on ground report, satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-17 at 22:40 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 17 2220 UTC move se.
  • Volcanic ash reported by cvghm to 500m above summit at 17/2201z. Volcanic ash observation on current rgb satellite img in clear conditions. Height and forecast based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-17 at 17:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 17 1640 UTC move se.
  • Volcanic ash height and movement based on himawari-9 imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-17 at 06:52 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 17 0310 UTC.
  • Current satellite img indicates that ash from volcano semeru has now dissipated. No further reports of new or ongoing eruption. Advisory terminated.

Original Message :

Volcanic Ash Advisory issued on 2023-05-17 at 01:15 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) move se observation at 17 0100 UTC.
  • Volcanic ash observation on latest satellite img move south to se. Last observation before a break in coverage at a manual station vona.

Original Message :

Volcanic Ash Advisory issued on 2023-05-16 at 20:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) extending south.
  • Volcanic ash seen on rgb satellite imagery extending south. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-16 at 14:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 16 0220 UTC move south.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-16 at 14:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) extending south.
  • Volcanic ash seen on rgb satellite imagery extending south. Volcanic ash height and movement based on satellite imagery and model. Guidance. **advisory polygons updated**.

Original Message :

Volcanic Ash Advisory issued on 2023-05-16 at 08:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 16 0220 UTC move south.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-16 at 03:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 16 0220 UTC move south.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-15 at 21:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 15 2100 UTC move southwest.
  • Volcanic ash height and movement based on satellite imagery and model guidance. Previous advisory updated as ash discerned to be moving is a southwest direction.

Original Message :

Volcanic Ash Advisory issued on 2023-05-15 at 19:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 15 0600 UTC move north.
  • Volcanic ash currently not identifiable on satellite imagery, however ash still expected in area. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-15 at 13:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 15 0600 UTC move north.
  • Volcanic ash currently not identifiable on satellite imagery, however ash still expected in area. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-15 at 07:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 15 0600 UTC move north.
  • Volcanic ash currently not identifiable on satellite imagery, however ash still expected in area. Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-15 at 01:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation at 15 0040 UTC move north.
  • Volcanic ash height and movement based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-14 at 18:59 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) move north last observation before a break in coverage at a manual station observation 14 0100 UTC.
  • Volcanic ash unidentifible on latest satellite imagery due to meteorological cloud cover. Vona received at 14 0956 UTC suggests an ongoing eruption. Volcanic ash height based on ground report at 14 0956 UTC and movement based on consensus model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-14 at 12:59 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) move north last observation before a break in coverage at a manual station observation 14 0100 UTC.
  • Volcanic ash unidentifible on latest satellite imagery due to meteorological cloud cover. Vona received at 14 0956 UTC suggests an ongoing eruption observed to 600m above summit. Volcanic ash height based on ground report at 14 0956 UTC and movement based on consensus model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-14 at 06:59 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) moving north last observation before a break in coverage at a manual station observation 14 0100 UTC.
  • Volcanic ash unidentifible on satellite imagery due to meteorological cloud cover. Height based on ground report at 13 2223 UTC and movement based on consensus model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-14 at 00:54 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) moving north.
  • Volcanic ash clearly seen on visibility satellite imagery move north. Height based on ground report at 13 2223 UTC and movement based on consensus model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-13 at 18:53 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation at 12/0310z.
  • Volcanic ash not identifiable on latest sateliite imagery due obscuration by meteorological cloud, however volcanic ash still expected in the area. Volcanic ash height and forecast based on himawari-9, model guidance and ground report.

Original Message :

Volcanic Ash Advisory issued on 2023-05-13 at 12:53 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation at 12/0310z.
  • Volcanic ash not identifiable on latest sateliite imagery due obscuration by meteorological cloud, however volcanic ash still expected in the area. Volcanic ash height and forecast based on himawari-9, model guidance and ground report.

Original Message :

Volcanic Ash Advisory issued on 2023-05-13 at 06:53 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move w at 12/0310z. Vona at 13 0541 UTC.
  • Volcanic ash not identifiable on latest sateliite imagery due to meteorological cloud, however ash is still expected in the area. Volcanic ash height and forecast based on himawari-9 satellite img, model guidance and ground report.

Original Message :

Volcanic Ash Advisory issued on 2023-05-13 at 00:53 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move w at 12 0310 UTC.
  • Volcanic ash not identifiable on latest sateliite imagery due to meteorological cloud, however ash is still expected in the area. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-12 at 18:54 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move w at 12 0310 UTC.
  • Volcanic ash not identifiable on latest sateliite imagery due to meteorological cloud, however ash is still expected in the area. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-12 at 13:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move w at 12 0310 UTC.
  • Volcanic ash not identifiable on latest sateliite imagery due to meteorological cloud, however ash is still expected in the area. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-12 at 07:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move w at 12 0310 UTC.
  • Volcanic ash unidentifiable on latest sateliite imagery due to meteorological cloud, however ash is still expected in the area. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-12 at 01:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation to flight level 140 (4200m) move w at 12 0040 UTC.
  • Vona received indicating eruption to 500m above summit. Weak volcanic ash plume observed on latest satellite imagery extending west of the volcano. Ash height and forecast based on latest satellite img, ground report 12 0030 UTC and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-10 at 04:27 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation from ground at 10 0415 UTC move south.
  • Volcanic ash not identifiable on satellite img due to meteorological cloud cover. Advisory will be updated if new eruption information is.

Original Message :

Volcanic Ash Advisory issued on 2023-05-09 at 04:37 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash to flight level 140 (4200m) move w last observation before a break in coverage at a manual station observation 08 0310 UTC.
  • Volcanic ash not discernible on satellite imagery for over 24 no other report indicate ongoing eruption. Advisory terminated due to lack of observation.

Original Message :

Volcanic Ash Advisory issued on 2023-05-08 at 22:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash to flight level 140 (4200m) move w last observation before a break in coverage at a manual station observation 08 0310 UTC.
  • Volcanic ash not discernible on latest satellite imagery due to meteorological cloud, however discrete emissions are expected to be ongoing. Volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-08 at 16:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash to flight level 140 (4200m) move w last observation before a break in coverage at a manual station observation 08 0310 UTC.
  • Volcanic ash not discernible on latest satellite imagery due to meteorological cloud, however discrete emissions still expected. Vona 08 0222 UTC ground report of eruption with volcanic ash to flight level 140 (4200m) volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-08 at 10:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash to flight level 140 (4200m) move w last observation before a break in coverage at a manual station observation 08 0310 UTC.
  • Volcanic ash not discernible on latest satellite imagery due to meteorological cloud, however discrete emissions still expected. Vona 08 0222 UTC ground report of eruption with volcanic ash to flight level 140 (4200m) volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-08 at 04:50 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation from ground at 08 0222 UTC.
  • Volcanic ash not discernible on latest satellite imagery due to meteorological cloud cover, however discrete emissions were visible earlier on satellite imagery. Vona 08 0222 UTC ground report of eruption with volcanic ash to flight level 140 (4200m) volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-07 at 22:46 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation from ground move wsw at 07 1615 UTC.
  • Volcanic ash not discernible on latest satellite imagery due to meteorological cloud cover, however discrete emissions are expected to be ongoing. Vona 07 1615 UTC ground report of eruption with volcanic ash to flight level 140 (4200m) volcanic ash height and forecast based on ground observations and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-07 at 16:46 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) move wsw observation from ground at 07 1615 UTC.
  • Volcanic ash not discernible on latest satellite imagery due to meteorological cloud cover and darkness however discrete emissions are expected to be ongoing. Volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-07 at 11:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) move south observation from ground at 07 0139 UTC.
  • Volcanic ash not discernible on satellite imagery due to meteorological cloud cover. Volcanic ash height and forecast based on recent eruptive behaviour and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-07 at 05:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ground report of eruption with volcanic ash to flight level 140 (4200m) move south.
  • Cvghm vona ground report of eruption at 07 0139 UTC with volcanic ash to 13683ft moving south. Volcanic ash not visible on satellite image due to meteorological cloud. Height and movement from recent ground reports, himawari-9 imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-06 at 23:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 06 0100 UTC.
  • Volcanic ash unidentifiable since 06 0100 UTC due to obscuration by meteorological cloud, however volcanic ash still expected in vicinity of volcano due to discrete emissions. Height and movement extrapolated from himawari-8 imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-06 at 17:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 06 0100 UTC.
  • Volcanic ash unidentifiable since 06 0100 UTC due to obscuration by meteorological cloud, however volcanic ash still expected in vicinity of volcano due to discrete emissions. Height and movement extrapolated from himawari-8 imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-06 at 11:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 06 0100 UTC.
  • Volcanic ash unidentifiable since 06 0100 UTC due to obscuration by meteorological cloud, however ash still expected in vicinity of volcano due to discrete emissions. Height and movement extrapolated from himawari-8 imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-06 at 05:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 06 0100 UTC.
  • Volcanic ash unidentifiable since 06 0100 UTC due to obscuration, however ash still expected in vicinity of volcano due to discrete emissions. Height and movement extrapolated from himawari-8 imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-05 at 23:09 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 05 0110 UTC.
  • Volcanic ash not discernible on latest satellite img due to meteorological cloud in area. Cvghm reported volcanic ash to 400m above summit at 04/2221z. Height and forecast based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-05 at 17:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 05 0110 UTC.
  • Volcanic ash not discernible on latest satellite img due to meteorological cloud in area. Cvghm reported volcanic ash to 400m above summit at 04/2221z. Height and forecast based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-05 at 11:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 05 0110 UTC.
  • Volcanic ash not discernible on latest satellite img due to meteorological cloud in area. Cvghm reported volcanic ash to 400m above summit at 04/2221z. Height and forecast based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-05 at 05:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move southwest at 05 0110 UTC.
  • Volcanic ash not discernible on latest satellite img due to meteorological cloud. Cvghm reported volcanic ash to 400m above summit at 04/2221z. Height and forecast based on ground report, surabaya 05 0000 UTC sounding and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-04 at 23:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) move southwest last observation before a break in coverage at a manual station reported 04 2221 UTC.
  • Volcanic ash not discernible on latest satellite img due to meteorological cloud. Cvghm reported volcanic ash to 400m above summit at 04/2221z. Intermittent discrete emissions may be ongoing. Height and forecast based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-04 at 17:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) move w last observation before a break in coverage at a manual station observation at 04 0100 UTC.
  • Volcanic ash not discernible on satellite imagery due to obscuration by meteorological cloud. Height and forecast based on latest satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-04 at 11:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) move w last observation before a break in coverage at a manual station observation at 04 0100 UTC.
  • Volcanic ash not discernible on satellite imagery due to obscuration by meteorological cloud. Height and forecast based on latest satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-04 at 05:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) move w last observation before a break in coverage at a manual station observation at 04 0100 UTC.
  • Volcanic ash not discernible on satellite imagery due to obscuration by meteorological cloud. Height and forecast based on latest satellite img, cvhm 03 2246 UTC vona and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-03 at 23:12 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash emsission to flight level 150 (4500m) move w at 03/2250z.
  • Cvghm reported eruption to 1000m above summit. Volcanic ash discernible on visible satellite img. Height and forecast based on latest satellite img, cvhm 03 2246 UTC vona and model guidance. Volcanic ash expected to dissipate 6.

Original Message :

Volcanic Ash Advisory issued on 2023-05-03 at 05:13 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 02 0040 UTC.
  • Volcanic ash has not been identifiable on satellite imagery for the last observation before a break in coverage at a manual station 24 current data sources do not indicate an ongoing eruption. Advisory terminated.

Original Message :

Volcanic Ash Advisory issued on 2023-05-03 at 00:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 02 0040 UTC.
  • Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Height and forecast based on last observation before a break in coverage at a manual station observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-02 at 18:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 02 0040 UTC.
  • Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Height and forecast based on last observation before a break in coverage at a manual station observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-02 at 12:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 02 0040 UTC.
  • Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Height and forecast based on last observation before a break in coverage at a manual station observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-02 at 06:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash emission to flight level 140 (4200m) move se, last observation before a break in coverage at a manual station observation 02 0040 UTC.
  • Volcanic ash not identifiable on latest satellite imagery due to meteorological cloud. Height and forecast based on himawari-9 satellite imagery, last observation before a break in coverage at a manual station observation move and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-02 at 00:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash emission to flight level 140 (4200m) move se.
  • Discrete volcanic ash emission identifiable on latest visibility satellite imagery, last observation before a break in coverage at a manual station observation at 01/2350z. Height and forecast based on himawari-9 satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-01 at 18:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 01 0010 UTC.
  • Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Height and forecast based on last observation before a break in coverage at a manual station observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-01 at 12:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation move se at 01 0010 UTC.
  • Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Height and forecast based on vona [30/2311z] and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-01 at 06:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash to flight level 140 (4200m) move se, last observation before a break in coverage at a manual station observation at 01 0010 UTC.
  • Volcanic ash not identifiable on latest satellite imagery due to meteorological cloud. Height and move based on vona [30/2311z] and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-05-01 at 00:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Discrete volcanic ash to flight level 140 (4200m) move se.
  • Discrete volcanic ash emission identifiable on latest satellite imagery, last observation before a break in coverage at a manual station discerned at 30/2350z. Height and move based on vona [30/2311z] and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-30 at 23:33 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash reported to flight level 140 (4200m) at 30 2311 UTC move ssw.
  • Cvghm reported eruption to 700m above summit at 30/2311z. Volcanic ash unidentifiable on satellite imagery in clear conditions. Height and move based on vona and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-30 at 18:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 30 0120 UTC move se.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash is expected to dissipate volcanic ash height and movement based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-30 at 12:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move se at 30 0120 UTC.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud, however ash still expected in area. Volcanic ash is expected to dissipate volcanic ash height and movement based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-30 at 06:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation move se at 30 0120 UTC.
  • Cvghm reported eruptions to 800m above summit at 29 2324 UTC and 500m at 30/0038z. Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Height and forecast based on ground reports and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-30 at 00:05 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) observation move se at 29 2340 UTC.
  • Cvghm reported eruption to 800m above summit at 29/2324z. Volcanic ash partially observation through meteorological cloud on latest visibility satellite img. Height and forecast based on ground report and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-29 at 12:06 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash last observation before a break in coverage at a manual station observation to flight level 150 (4500m) at 29 0000 UTC move southwest.
  • Volcanic ash currently not identifiable on satellite imagery due to meteorological cloud and ash from earlier eruption is expected to have dissipated. No other information source indicate intermittent eruption or presence of ash in the atmosphere. Advisory terminated.

Original Message :

Volcanic Ash Advisory issued on 2023-04-29 at 06:10 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 29 0000 UTC move southwest.
  • Volcanic ash unidentifiable on satellite img due to meteorological cloud. Intermittent discrete volcanic ash emissions expected to be ongoing. Volcanic ash height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-29 at 00:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 28 0120 UTC move southwest.
  • Volcanic ash unidentifiable on satellite img due to meteorological cloud. Intermittent discrete volcanic ash emissions expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-28 at 18:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 28 0120 UTC move wsw.
  • Volcanic ash indiscernible on satellite img due to meteorological cloud. Intermittent discrete volcanic ash emissions expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-28 at 12:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 28 0120 UTC move wsw.
  • Volcanic ash indiscernible on satellite img due to meteorological cloud. Intermittent discrete volcanic ash emissions expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-28 at 06:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 28 0120 UTC move wsw.
  • Volcanic ash indiscernible on satellite img due to meteorological cloud. Intermittent discrete volcanic ash emissions expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-28 at 00:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 28 0010 UTC move wsw.
  • Intermittent discrete volcanic ash emissions observed on visibility satellite img. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-27 at 18:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 27 0140 UTC ext wsw.
  • Volcanic ash indiscernible on satellite img due to meteorological cloud. Discrete volcanic ash eruptions are expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-27 at 12:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 27 0140 UTC ext wsw.
  • Volcanic ash indiscernible on satellite img due to meteorological cloud. Discrete volcanic ash eruptions are expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-27 at 06:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 27 0140 UTC ext wsw.
  • Volcanic ash indiscernible on satellite img due to meteorological cloud. Discrete volcanic ash eruptions are expected to be ongoing. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-27 at 00:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 27 0010 UTC ext wsw.
  • Discrete volcanic ash eruptions observed on visible satellite imagery. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-26 at 18:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 25 2350 UTC ext southwest.
  • Discrete volcanic ash eruptions observed on satellite imagery before cloud cover increased over the area. Volcanic ash unidentifiable on current satellite imagery due to meteorological cloud. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-26 at 12:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation at 25 2350 UTC ext southwest.
  • Discrete volcanic ash eruptions observed on satellite imagery before cloud cover increased over the area. Volcanic ash unidentifiable on current satellite imagery due to meteorological cloud. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-26 at 06:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) ext southwest last observation before a break in coverage at a manual station observation at 25 2350 UTC.
  • Discrete volcanic ash eruptions seen on satellite imagery before cloud cover increased over the area. Volcanic ash unidentifiable at the moment. Height and movement based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-26 at 00:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) ext southwest last observation before a break in coverage at a manual station observation at 25 2350 UTC.
  • Discrete volcanic ash eruptions seen on satellite imagery before cloud cover increases over the area. Height based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-25 at 19:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) ext southwest last observation before a break in coverage at a manual station observation at 25 0030 UTC.
  • Volcanic ash currently unidentifiable on latest satellite imagery due to meteorological cloud, however discrete emissions is expected to be ongoing. Height based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-25 at 13:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) ext southwest last observation before a break in coverage at a manual station observation at 25 0030 UTC.
  • Volcanic ash currently unidentifiable on latest satellite imagery due to meteorological cloud, however discrete emissions is expected to be ongoing. Height based on himawari-9 img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-25 at 07:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) ext southwest last observation before a break in coverage at a manual station observation at 25 0030 UTC.
  • Discrete eruption seen on satellite imagery at 25 0030 UTC before meteorological cloud covers the summit. Height based on recent ground reports and movement based on consensus model guidance. Pilot weather report stated low eruption in sight.

Original Message :

Volcanic Ash Advisory issued on 2023-04-25 at 01:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) ext southwest observation at 25 0030 UTC.
  • Discrete eruption seen on satellite imagery before meteorological cloud covers the summit. Height based on recent based on ground reports and movement based on consensus model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-24 at 19:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) ext nw observation at 24 0140 UTC.
  • Volcanic ash unidentifiable on latest satellite imagery due to meteorological cloud cover, however ash is still expected in the area. Volcanic ash height and forecast based on satellite imgery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-24 at 13:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) ext nw observation at 24 0140 UTC.
  • Volcanic ash unidentifiable on latest satellite imagery due to meteorological cloud. However, ash is still expected in the area. Volcanic ash height and forecast based on satellite imgery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-24 at 07:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation ext nw at 24 0140 UTC.
  • Volcanic ash currently unidentifiable on latest satellite imagery due to meteorological cloud. However, ash is still expected in the area. Volcanic ash height and forecast based on satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-24 at 01:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) observation ext nw at 24 0110 UTC.
  • Volcanic ash identifiable on latest satellite imagery. Volcanic ash height and forecast based on satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-23 at 19:38 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation ext nw at 23 1920 UTC.
  • Volcanic ash identifiable on recent rgb himawari-9 imagery. Volcanic ash height and forecast based on satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-23 at 14:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 140 (4200m) last observation before a break in coverage at a manual station observation ext southwest at 23 0140 UTC.
  • Volcanic ash unidentifiable on recent satellite imagery due to meteorological cloud obscuration, however emission is expected to be ongoing. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-23 at 08:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash last observation before a break in coverage at a manual station observation ext southwest at 23 0140 UTC.
  • Volcanic ash unidentifiable on satellite imagery due to meteorological cloud obscuration. However, low level emission is still expected to be ongoing. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-23 at 03:30 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation on himawari-9 imagery ext southwest.
  • Volcanic ash discernible on latest satellite imagery as a thin plume extending southwest. Volcanic ash height and forecast based on satelite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-23 at 02:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation ext southwest at 23 0140 UTC.
  • Volcanic ash clearly discernible on satellite imagery extending to the southwest of summit. Volcanic ash height and forecast based on himawari-9 satellite img and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-22 at 20:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation on himawari-9 imagery ext southwest.
  • Volcanic ash discernible on rgb satellite imagery as a thin plume extending southwest. Intermittent emissions expected to be ongoing. Volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-22 at 14:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation on himawari-9 img at 22 0130 UTC.
  • Volcanic ash not discernible on satellite imgery due to meteorological cloud cover, however emission is expected to be ongoing. Volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-22 at 08:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash observation on himawari-9 img at 22 0130 UTC.
  • Volcanic ash not discernible on satellite imgery due to meteorological cloud cover, however emission is expected to be ongoing. Volcanic ash height and forecast based on ground observation and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-22 at 02:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to observation on himawari-9 img at 22 0130 UTC.
  • Volcanic ash not discernible near summit on satellite img due to meteorological cloud cover, however weak volcanic ash plume can be seem south of the summit. Volcanic ash height and forecast based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-21 at 20:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Eruption to flight level 140 (4200m) observation from ground at 20 2340 UTC.
  • Volcanic ash not discernible on current satellite img due to meteorological cloud cover, however a hotspot is detected. Volcanic ash height and forecast based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-21 at 14:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Eruption to flight level 140 (4200m) observation from ground at 20 2340 UTC.
  • Volcanic ash not discernible on current satellite img due to meteorological cloud cover. Volcanic ash height and forecast based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-21 at 08:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Eruption to flight level 140 (4200m) observation from ground at 20 2340 UTC.
  • Volcanic ash not discernible on current satellite img due to meteorological cloud cover. Volcanic ash height and forecast based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-21 at 02:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Eruption to flight level 140 (4200m) observation from ground at 20 2340 UTC.
  • Volcanic ash not discernible on current satellite img due to meteorological cloud cover. Intermittent emissions visible on webcam. Volcanic ash height and forecast based on satellite imagery and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-20 at 20:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ground report of eruption with volcanic ash to flight level 150 (4500m) at 20 0202 UTC.
  • Minor volcanic ash eruptions last observation before a break in coverage at a manual station observation on satellite img at 20 0100 UTC move north east. Vona ground rep of eruption to 14323ft at 20/0202z. Volcanic ash not visible on current satellite img due to meteorological cloud. Height and move based on himawari-9, vona and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-20 at 14:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ground report of eruption with volcanic ash to flight level 150 (4500m) at 20 0202 UTC.
  • Minor volcanic ash eruptions last observation before a break in coverage at a manual station observation on satellite img at 20 0100 UTC move north east. Vona ground rep of eruption to 14323ft at 20/0202z. Volcanic ash not visible on current satellite img due to meteorological cloud. Height and move based on himawari-9, vona and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-20 at 08:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ground report of eruption with volcanic ash to flight level 150 (4500m) at 20 0202 UTC.
  • Minor volcanic ash eruptions last observation before a break in coverage at a manual station observation on satellite img at 20 0100 UTC move north east. Vona ground rep of eruption to 14323ft at 20/0202z. Volcanic ash not visible on current satellite img due to meteorological cloud. Height and move based on himawari-9, vona and model guidance.

Original Message :

Volcanic Ash Advisory issued on 2023-04-20 at 02:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Ground report of eruption with volcanic ash to flight level 150 (4500m) at 20 0105 UTC.
  • Minor volcanic ash eruptions last observation before a break in coverage at a manual station observation on satellite img move north east. Vona ground rep of eruption to 14003ft at 20/0105z. Height and move based on himawari-9, vona and model guidance. Low confidence in forecast due light.

Original Message :

Volcanic Ash Advisory issued on 2023-04-19 at 20:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation 19 0130 UTC move southwest.
  • Volcanic ash last observation before a break in coverage at a manual station observation on satellite img 19 0130 UTC move southwest. Vona ground rep of eruption to 14963ft at 19/0129z. Height and move based on himawari-9, vona and model guidance. Low confidence in forecast due light.

Original Message :

Volcanic Ash Advisory issued on 2023-04-19 at 14:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation 19 0130 UTC move southwest.
  • Ground reports of discrete volcanic ash emissions up to flight level 150 (4500m) volcanic ash last observation before a break in coverage at a manual station observation on satellite img 19 0130 UTC move southwest. Vona ground rep of eruption to 14963ft at 19/0129z. Height and move based on himawari-9, vona and model guidance. Low confidence in forecast due light.

Original Message :

Volcanic Ash Advisory issued on 2023-04-19 at 08:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) last observation before a break in coverage at a manual station observation 19 0130 UTC move southwest.
  • Ground reports of discrete volcanic ash emissions up to flight level 150 (4500m) volcanic ash last observation before a break in coverage at a manual station observation on satellite img 19 0130 UTC move southwest. Vona ground rep of eruption to 14963ft at 19/0129z. Height and move based on himawari-9, vona and model guidance. Low confidence in forecast due light.

Original Message :

Volcanic Ash Advisory issued on 2023-04-19 at 02:00 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash to flight level 150 (4500m) moving southwest.
  • Frequent discrete volcanic ash emissions up to flight level 150 (4500m) observation on rgb and visible satellite img moving southwest and w. Vona ground report of eruption to 14963ft at 19/0129z. Height and movement based on himawari-9 satellite img, vona ground reports and consensus model guidance.

Original Message :