Overall Green Volcanic eruption for Fuego
in Guatemala

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 2026-09-04 at 03:36 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Webcam shows volcanic ash emission model winds at forecast variable next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-09-03 at 21:53 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Light volcanic ash emission observation in webcam. Volcanic ash not detected in satellite img. Model winds suggest nw mvmt to shift w by t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-09-03 at 15:53 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Volcanic ash not visibility in satellite img due to meteorological cloud cover. Volcanic ash emission may continue. Model winds suggest w mvmt to shift nw by t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-09-03 at 09:57 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Webcam shows volcanic ash emission. Model winds at forecast to veer by t+12 hour becoming more from the ese. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-09-03 at 04:02 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to thick weather clouds in summit area. Volcanic ash emission likely continue recent activity. Model winds at forecast to veer over.

Original Message :

Volcanic Ash Advisory issued on 2026-09-02 at 22:23 UTC.

    Key information extracted from original VAA message :


  • Likely volcanic ash emission.
  • Volcanic ash emission not observation on satellite or webcam due to heavy weather cloud cover. Emission likely to continue. A general w to southwest mvmt exp through t+18 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-09-02 at 16:32 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite mvg general w from summit. Further volcanic ash may be obscure by weather webcam shows frqt emission. Volcanic ash mvmt to shift more southwest through t+12 then more w by t+18 with wind speed decreasing. Forecast based on nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-09-02 at 10:40 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash cloud moving wnw.
  • Volcanic ash clouds obsd on satellite img moving wnw apprx 50nm. Volcanic ash emission seen on webcam. Nwp models forecast volcanic ash cloud moving nw through t+6 then wsw through t+18. Butler.

Original Message :

Volcanic Ash Advisory issued on 2026-09-02 at 07:54 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving w of summit. Webcam shows volcanic ash emission. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-30 at 23:19 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission obsd in satellite img extg apprx 50 nm wnw from summit. A more nw mvmt exp by t+12 hours. Mvmt and height based on satellite observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-30 at 17:28 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission obsd in webcam and satellite img extg apprx 35 nm w from summit. W mvmt exp to shift wsw by t+6 hrs, and wnw by t+18 hours. Mvmt and height based on webcam, satellite observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-30 at 11:25 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite and webcam mvg nw rchng apprx 30 nm from summit. Nw mvmt exp through t+6 then shftng more wsw by t+12. Estimate from webcam, forecast based on nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-30 at 05:36 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving wnw of summit. Webcam shows volcanic ash emission. Model winds at forecast to back by t+12 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-29 at 23:42 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission not obsd in satellite img possibly due to meteorological volcanic ash emission may be obscured. Little change in forecast through t+12 hours. Mvmt and height based on nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-29 at 17:42 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission obsd in webcam and satellite img extg apprx 45 nm w from summit. W mvmt exp to shift wnw by t+12 hours and nw by t+18 hours. Mvmt and height based on webcam, satellite observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-29 at 11:43 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite img mvg wnw from summit. Further emission may be obscure by weather cloud. Webcam shows frqt volcanic ash emission. Nwp models suggest a general wnw mvmt through t+18. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-29 at 06:27 UTC.

    Key information extracted from original VAA message :


  • Continuing volcanic ash emission.
  • Volcanic ash emission observation in satellite and webcam move w from summit with intermittent meteorological cloud obscn. Observation volcanic ash estd from nwp little change forecast in mvmt through t+18 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-29 at 00:42 UTC.

    Key information extracted from original VAA message :


  • Possible ongoing volcanic ash emission.
  • Dense cloud cover over the has obscured possible volcanic ash in satellite imagery and intermittently in webcam. Volcanic ash presumed move to the w based on nwp models and persistence. Lee.

Original Message :

Volcanic Ash Advisory issued on 2026-08-28 at 19:14 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Continuous volcanic ash emission noted in webcam and in infrared satellite imagery. Volcanic ash plume extends to the w of the summit. Lee.

Original Message :

Volcanic Ash Advisory issued on 2026-08-28 at 13:34 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Corrected to fix erroneous vag attachment. Continue volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity moderate to high. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-28 at 04:53 UTC.

    Key information extracted from original VAA message :


  • Continuing volcanic ash emission.
  • Continuing volcanic ash emission observation in webcam and satellite move nw up to 60 nm from summit. Observation volcanic ash estd from nwp mvmt forecast to turn to southwest by t+18 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-27 at 23:04 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Volcanic ash emission vsbl in webcam but not obsd in satellite img due to meteorological a more wnw mvmt exp by t+12 hours. Mvmt and height based on webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-27 at 17:21 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission obsd in webcam and satellite img extg apprx 60 nm w from summit. W mvmt exp to shift more wsw by t+6 hours and wnw by t+12 hours. Mvmt and height based on webcam, satellite observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-27 at 11:36 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite apprx 55 nm wnw from summit with newer emission closer to summit also observation. Webcam shows frqt activity. Volcanic ash mvmt toward the w exp through t+6 shftng more wnw through t+18 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-27 at 07:25 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash observation in webcam.
  • Ongoing volcanic ash emission observation in webcam but satellite imagery remains obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-27 at 01:28 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash emission observation in webcam but satellite imagery remains osbcd by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-26 at 19:38 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission obsd in satellite img extg apprx 50 nm w from summit. A more wsw mvmt exp by t+6 hours. Mvmt and height based on satellite img and nwp models. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-26 at 07:53 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash observation in webcam.
  • Ongoing volcanic ash emission observation in webcam but satellite imagery remains obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-26 at 02:13 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash emission occasionally seen in webcam during breaks in weather satellite imagery obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-25 at 20:47 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash em.
  • Volcanic ash em observation in webcam and in satellite img moving w at apx 30 nmi from summit. Exp wsw movement through t+18 hours. And forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-25 at 15:04 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity moderate. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-25 at 09:22 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation in satellite imagery and webcam moving apprx 20nm w of summit. Volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-25 at 04:09 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Frqt volcanic ash emission observation in satellite imagery and webcam moving apprx 20nm wnw of summit. Volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-24 at 22:17 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash em likely.
  • Volcanic ash em observation earlier in webcam. Volcanic ash not crntly.

Original Message :

Volcanic Ash Advisory issued on 2026-08-24 at 16:28 UTC.

    Key information extracted from original VAA message :


  • Frequent small volcanic ash em.
  • Volcanic ash em observation in webcam tho not observation in satellite img due to meteorological cloud cover in summit area. Exp wnw movement through t+18 hours. Bsd on past activity. Forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-24 at 10:51 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission possible.
  • Continue volcanic ash emission possible move w in satellite imagery. No new volcanic ash emission observation in satellite imagery due to weather volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-24 at 04:54 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash emission not crntly observation on satellite due to weather cloud cvr, however emission observation on webcam mvg w from summit. A general w to wnw mvmt exp through t+18 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-23 at 23:06 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash em likely.
  • Volcanic ash em observation earlier in webcam tho crntly webcam and satellite img obscured by heavy meteorological exp movement to w through t+18 hours. Bsd on past activity. Forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-23 at 17:09 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash em.
  • Volcanic ash em observation in webcam and in satellite img moving w at apx 25 nmi from summit. Exp w to wnw movement through t+18 hours with medium confd due to diff in observation volcanic ash direction and model bsd on past activity. Forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-23 at 11:09 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation.
  • Volcanic ash emission observation in satellite img up to apprx 22nm from summit. Volcanic ash emission seen in webcam. Nwp model guidance forecast general w to wnw movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-23 at 05:25 UTC.

    Key information extracted from original VAA message :


  • Frequent volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img ext approximate 10nm southwest from summit. W mvmt exp by t+6. Forecast based on satellite and model forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-22 at 23:23 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w to wnw to nw through t+18hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-22 at 17:32 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue dense volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w to wnw move through t+18hrs before disp. Volcano activity high. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-22 at 11:38 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite dispersing general w from summit rchng apprx 40 nm. Frqt emission to around flight level 140 (4200m).

Original Message :

Volcanic Ash Advisory issued on 2026-08-22 at 07:23 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img ext approximate 10nm w from summit. W mvmt exp through t+12. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-22 at 01:23 UTC.

    Key information extracted from original VAA message :


  • Frequent volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img ext approximate 15nm wnw from summit. W mvmt exp by t+12. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-21 at 19:34 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Thin volcanic ash plume detected on satellite moving w of summit. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-21 at 13:41 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash plume obsd.
  • Volcanic ash plume obsd on satellite img. Fqnt emission seen on webcam. Nwp model forecast volcanic ash emission general southwest movement through t+12, then volcanic ash emission movement nw through t+18. Estd from webcam. Butler.

Original Message :

Volcanic Ash Advisory issued on 2026-08-21 at 10:29 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Continuous volcanic ash emission obsd on satellite going nw. Nwp models forecast general nw to wsw movement through t+18. Butler.

Original Message :

Volcanic Ash Advisory issued on 2026-08-21 at 04:42 UTC.

    Key information extracted from original VAA message :


  • Frequent volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img ext approximate 20nm w from summit. A general w mvmt exp through t+18. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-20 at 22:40 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Thin volcanic ash plume detected on satellite moving wsw of summit. Ltlchg forecast in model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-20 at 16:51 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash detected on satellite moving w of summit. Webcam shows frequent volcanic ash emission. No change forecast to model winds at.

Original Message :

Volcanic Ash Advisory issued on 2026-08-20 at 11:06 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission possible.
  • Volcanic ash emission not observation in satellite img due to meteorological volcanic ash emission possibly contng based on prev activity. Nwp model guidance forecast general w movement through t+6. Butler.

Original Message :

Volcanic Ash Advisory issued on 2026-08-20 at 05:09 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission not obsd in satellite img possibly due to meteorological volcanic ash emission may be obscured. Wnw mvmt exp to shift more w by t+12 hours. Mvmt and height based on nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-19 at 23:03 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to thick weather clouds in summit area. Volcanic ash emission likely continue recent activity. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-19 at 17:24 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash detected on satellite moving w of summit. Vona indicates frequent volcanic ash emission. Ltlchg in model winds at.

Original Message :

Volcanic Ash Advisory issued on 2026-08-19 at 11:30 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission likely.
  • Volcanic ash emission not observation on satellite due to weather cloud cover. Incandescence noted in webcam suggest volcanic ash emission ongoing. Nwp models suggest volcanic ash mvmt general toward the w through t+6, with mvmt toward the wsw to wnw exp through t+18. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-19 at 05:38 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission not obsd in satellite img possibly due to meteorological volcanic ash emission may be obscured. A more wsw mvmt exp by t+12 hours. Mvmt and height based on nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-19 at 00:07 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected due to thick weather clouds in summit area. Volcanic ash emission likely continue recent activity. Model winds at forecast to veer next 6 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-18 at 18:18 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Correction for at 18 hour. Thin volcanic ash plume detected on satellite moving southwest of summit to pacific coast. Model winds at forecast to veer by t+12 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-18 at 11:56 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Multiple volcanic ash clouds obsd by satellite extending to over 40 nmi w of summit. Estd from nwp nwp models forecast volcanic ash to move sw-wsw by t+6 then wsw at t+12 and back to wnw by t+18. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2026-08-18 at 07:24 UTC.

    Key information extracted from original VAA message :


  • Continuing volcanic ash emission.
  • Webcam shows continuing light volcanic ash em activity. Volcanic ash not observation in satellite with intermittent meteorological cloud obscn. Observation volcanic ash area estd from nwp models and prev vaa. Little change forecast in mvmt through t+12 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-18 at 01:34 UTC.

    Key information extracted from original VAA message :


  • Possible continuing volcanic ash emission.
  • Volcanic ash not observation in satellite due to meteorological cloud of summit area. Occasional volcanic ash emission observation in webcam. Observation volcanic ash area estd from nwp models and prev vaa. Little change forecast in mvmt through t+12 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-17 at 19:42 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Webcam shows volcanic ash emission. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-17 at 13:49 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Frqt volcanic ash emission observation in webcam but satellite imagery is obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-17 at 07:59 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash emission observation in satellite img now ext approximate 50nm w from summit. Mvmt to shift wnw by t+12. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-17 at 06:41 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img ext approximate 30nm from summit fanning southwest through wnw. Wnw mvmt exp through t+18. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-17 at 00:38 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash detected on satellite moving wsw of summit. Webcam shows near continuous volcanic ash emission. Model winds at forecast to veer a bit next 6 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-16 at 18:54 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving wsw of summit. Webcam shows frequent volcanic ash emission. Model winds at forecast to veer by t+18 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-16 at 13:03 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite mvg w and southwest from summit. Webcam shows continuous plume just above summit to flight level 140 (4200m) mvg w along with frqt discrete emission to flight level 160 (4800m) mvg southwest. A general wsw to southwest mvmt exp at both through t+18 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-16 at 08:18 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Volcanic ash emission observation in satellite img ext approximate 50nm wsw from summit. A more southwest mvmt exp by t+6. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-16 at 05:24 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Frequent volcanic ash emission observation in webcam and satellite img ext approximate 40nm southwest from summit. A general southwest mvmt exp through t+18. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-16 at 02:42 UTC.

    Key information extracted from original VAA message :


  • Frequent volcanic ash emission.
  • Small volcanic ash emission observation in satellite img ext approximate 15nm wsw from summit. Wsw mvmt exp through t+18. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-15 at 20:41 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Volcanic ash emission likely continue recent activity. Model winds at forecast to veer next 6 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-15 at 14:38 UTC.

    Key information extracted from original VAA message :


  • Possible continuing occasional volcanic ash emission.
  • Volcanic ash not currently observation in satellite with some meteorological cloud but emission observation in past few hours. Observation volcanic ash area estd from prev vaa and furthest extent of recent em. Little change forecast in mvmt through t+18 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-15 at 09:12 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity high. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-15 at 03:25 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation w move in satellite imagery. Volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-14 at 21:28 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving southwest of summit. Ltlchg forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-14 at 15:30 UTC.

    Key information extracted from original VAA message :


  • Ongoing signature volcanic ash emission.
  • Volcanic ash detected on satellite currently aprox 105 nm wsw of summit over pacific. Webcam shows frequent strong volcanic ash emission. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-14 at 09:51 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission observation.
  • Continuous volcanic ash emission observation in satellite img up to apprx 140nm from summit. Volcanic ash emission seen in webcam. Nwp model guidance forecast general wsw to southwest movement through t+18. Height based on webcam, movmt, and nwp. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-14 at 05:32 UTC.

    Key information extracted from original VAA message :


  • Fqnt volcanic ash emission observation.
  • Fqnt volcanic ash emission observation in satellite img up to apprx 115nm from summit. Volcanic ash emission seen in webcam. Nwp model guidance forecast general w to southwest movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-14 at 03:32 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation.
  • Volcanic ash emission observation in satellite img up to apprx 73nm from summit. Volume incandescence seen in webcam. Nwp model guidance forecast general southwest movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-13 at 23:28 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving w of summit to pacific coast. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-13 at 17:23 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite currently aprox 125 nm southwest of summit over open pacific. Webcam shows frequent strong volcanic ash emission. Model winds at forecast to veer by t+18 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-13 at 11:23 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission continue.
  • Volcanic ash emission observation on satellite dispersing general southwest apprx 75 nm from summit. Webcam shows continuous plume from summit. Nwp models suggest general southwest to wsw mvmt through t+18. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-13 at 08:00 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation.
  • Volcanic ash emission observation in satellite img up to apprx 50nm from summit. Volcanic ash emission seen in webcam. Nwp model guidance forecast general wsw to southwest movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-13 at 04:10 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation.
  • Volcanic ash emission observation in satellite img fanning out to the southwest up to apprx 27nm from summit. Volcanic ash emission seen in webcam. Nwp model guidance forecast general southwest movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-12 at 22:55 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not observation in satellite img due to meteorological cloud cover. Volcanic ash emission likely continue. Model winds suggest w mvmt to shift wsw by t+18. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-12 at 16:55 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img ext approximate 15nm nw from summit. Mvmt exp to shift wsw by t+18. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2026-08-12 at 10:59 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Occasional volcanic ash emission obsd by webcam with one at 09:93 UTC.

Original Message :

Volcanic Ash Advisory issued on 2026-08-12 at 04:53 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash emission not observation in satellite img due to heavy meteorological cloud cover. Ongoing volcanic ash emission seen in webcam. Nwp model guidance forecast general wnw to w movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-11 at 22:53 UTC.

    Key information extracted from original VAA message :


  • Continuing volcanic ash emission.
  • Volcanic ash not currently observation in satellite due to meteorological cloud.

Original Message :

Volcanic Ash Advisory issued on 2026-08-11 at 17:15 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Windshift now moving volcanic ash to 60nmi wsw of summit. Rcnt volcanic ash near summit moving nw to wsw. Nwp models forecast winds to gradually veer through t+18. Butler.

Original Message :

Volcanic Ash Advisory issued on 2026-08-11 at 13:44 UTC.

    Key information extracted from original VAA message :


  • Frqt discrete volcanic ash emission.
  • Volcanic ash cloud obsd by satellite extending 25-30 nmi wnw from the summit. Frqt volcanic ash emission obsd by webcam. Nwp models and webcam estimate at flight level 160 (4800m) nwp models forecast slight veering of wind through t+18hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2026-08-11 at 07:39 UTC.

    Key information extracted from original VAA message :


  • Fqnt volcanic ash emission observation.
  • Volcanic ash emission observation in satellite img up to apprx 180nm from summit. Fqnt volcanic ash emission seen in webcam. Nwp model guidance forecast general wnw movement through t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-11 at 01:39 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission observation.
  • Continuous volcanic ash emission observation in satellite img up to apprx 180nm from summit. Fqnt volcanic ash emission seen in webcam. Nwp model guidance forecast veering movement to the nw by t+18. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-10 at 21:58 UTC.

    Key information extracted from original VAA message :


  • Continuing volcanic ash emission.
  • Volcanic ash emission plume observation in satellite ext at least 100 nm southwest from summit. Observation volcanic ash estd from nwp mvmt forecast to turn to nw through t+18 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-10 at 19:06 UTC.

    Key information extracted from original VAA message :


  • Continuing observation volcanic ash emission.
  • Continuing volcanic ash emission observation in satellite ext up to 65 nm wsw from summit. Observation volcanic ash estd from nwp models and prev vaa. Mvmt forecast to gradually turn to ene through t+18 hours. Clark.

Original Message :

Volcanic Ash Advisory issued on 2026-08-10 at 13:09 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity high. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-10 at 07:08 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Volcanic ash plume observation on satellite extending at least 50 nm wsw from summit. Further volcanic ash may be obscure by weather cloud. A general w to wsw mvmt exp through t+18 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-10 at 01:16 UTC.

    Key information extracted from original VAA message :


  • Frqt volcanic ash emission.
  • Volcanic ash emission observation on satellite dispersing southwest to flight level 130 (3900m) and nw to apprx flight level 160 (4800m) webcam show occasional higher plume mvg nw while continuous light plume and perhaps re-suspended volcanic ash also observation emanating from just above summit mvg southwest. Nwp models suggest little change in mvmt from both through t+18. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-09 at 22:41 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash em.
  • Volcanic ash em observation earlier in webcam. Volcanic ash also observation in satellite img moving wsw at apx 15 nmi from summit. Exp continue wsw movement through t+18 hours. And forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-09 at 16:46 UTC.

    Key information extracted from original VAA message :


  • Frequent small volcanic ash em.
  • Volcanic ash em observation in webcam tho not observation in satellite img due to meteorological cloud cover in summit area. Exp movement shift from wnw to w through t+18 hours. Bsd on past activity. Forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-09 at 10:53 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash emission not observation in satellite img due to heavy meteorological cloud cover. Intermittent volcanic ash emission seen in webcam. Nwp model guidance forecast backing movement to the southwest by t+18. Height based on webcam. Monaghan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-09 at 04:53 UTC.

    Key information extracted from original VAA message :


  • Likely volcanic ash emission.
  • Volcanic ash not observation on satellite or webcam due to weather clouds but emission may continue wnw from summit. Little change in volcanic ash mvmt exp through t+12 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-08 at 23:05 UTC.

    Key information extracted from original VAA message :


  • Possible ongoing volcanic ash em.
  • Volcanic ash em not observation in satellite img due to meteorological cloud cover in summit area. Exp movement shift from w to wnw through t+12 hours. And present volcanic ash bsd on past activity. Forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-08 at 17:08 UTC.

    Key information extracted from original VAA message :


  • Frequent small volcanic ash em.
  • Volcanic ash em observation in webcam and in satellite img moving w and wnw from summit. Exp slight var winds with movement to general w through t+18 hours. And forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2026-08-08 at 11:16 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation in webcam. Volcanic ash not observation in satellite imagery due to weather continue volcanic ash forecast to move w from summit through t+18hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-08 at 05:38 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Occasional volcanic ash emission observation in webcam but satellite imagery is obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-07 at 23:38 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash em continue.
  • Light volcanic ash cloud obsd in satellite extg approximate 80 nm wsw from summit before obscure by meteorological cloud. Webcam obscure by meteorological cloud as well. Nwp model forecast e winds through t+18hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2026-08-07 at 17:58 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash em.
  • Continuous volcanic ash em obsd in satellite and volcanic ash plume extend approximate 80 nm w from summit. Nwp model forecast slightly veering through t+18hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2026-08-07 at 12:10 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation.
  • Continue volcanic ash emission observation move w in satellite imagery. Volcanic ash forecast to continue w move through t+18hrs before disp. Volcano activity high. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2026-08-07 at 06:32 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Volcanic ash emission likely continue recent activity. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-07 at 00:50 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Volcanic ash emission likely continue recent activity. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-06 at 19:19 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Occasional volcanic ash emission observation in webcam but satellite imagery is obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-06 at 13:35 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash em.
  • Volcanic ash plume obsd among meteorological cloud in satellite moving w from summit. Webcam obscure by meteorological cloud as well. Nwp model forecast little change through t+18hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2026-08-06 at 07:39 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving w of summit. Webcam shows volcanic ash emission. Model winds at forecast to back by t+18 hour becoming more from the ene. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-06 at 01:43 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to weather clouds in summit area. Webcam shows volcanic ash emission. No change forecast to model winds at next 18 hr,. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-05 at 20:00 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash moving southwest.
  • Volcanic ash emission observation in satellite imagery moving apprx 40nm southwest from summit. Webcam obscured by weather volcanic ash forecast through t+18 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2026-08-05 at 14:18 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Volcanic ash emission observation on satellite mvg w to wnw from summit. Webcam shows oncl emission. Volcanic ash mvmt exp to shift toward the wsw through t+18 according to nwp. Evans.

Original Message :

Volcanic Ash Advisory issued on 2026-08-05 at 08:27 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash detected on satellite moving wnw of summit, webcam shows occasional volcanic ash emission. Model winds at forecast to back a bit next 6 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-05 at 02:44 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash detected on satellite moving wnw of summit. Model winds at forecast to back over next 18 hour becoming more from the ene. Konon.

Original Message :

Volcanic Ash Advisory issued on 2026-08-04 at 21:05 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Volcanic ash emission vsbl in webcam but not obsd in satellite img due to meteorological w mvmt exp to shift nw by t+6 hrs, and more wnw by t+18 hours. Mvmt and height based on hysplit, webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2026-08-04 at 15:11 UTC.

    Key information extracted from original VAA message :


  • Ongoing signature volcanic ash em.
  • Very dense continue volcanic ash em observation in webcam. Volcanic ash not.

Original Message :

Volcanic Ash Advisory issued on 2026-08-04 at 09:19 UTC.

    Key information extracted from original VAA message :


  • Signature volcanic ash emission.
  • Correction for typo. Very dense volcanic ash plume 35 nm of summit moving w. Moderately dense plume extending aprox 65 nm wnw of summit currently. Webcam shows continuous strong emission with lightning in ltlchg forecast in model winds at next 18 hour. Konon.

Original Message :