Overall Green Volcanic eruption for Poas
in Costa Rica

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.



27/03 07:50

Volcanic Ash Advisory issued on 2025-05-20 at 17:19 UTC.

    Key information extracted from original VAA message :


  • No volcanic ash emission.
  • Volcanic ash not detected in satellite img or webcam. No reports of volcanic ash emission received. Gatling.

Original Message :

Tsunami Observations

  • The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level
GAUGE LOCATIONLATLONTIME (UTC)HEIGHT (m)PERIOD (min)
Hrakleio (Greece)35.348425.152503:280.056

Volcanic Ash Advisory issued on 2025-05-20 at 11:23 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Emission of gas and steam observation in webcam with possible volcanic ash mixed in. Volcanic ash not detected in satellite img. Intermittent volcanic ash emission may continue. Model guidance suggests w mvmt from summit through t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-20 at 05:25 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Volcanic ash not detected on satellite due to weather clouds on summit area. Webcam shows continuous steam/gas emission with some volcanic ash likely. No change forecast to model winds at.

Original Message :

Tsunami Observations

  • The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level
GAUGE LOCATIONLATLONTIME (UTC)HEIGHT (m)PERIOD (min)
Hrakleio (Greece)35.348425.152503:280.056

Volcanic Ash Advisory issued on 2025-05-19 at 23:38 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission possible.
  • No volcanic ash crntly observation in satellite imagery or webcam. Volcanic ash emission possible w of summit. Volcanic ash forecast through t+6 hours based on nwp. Coverdale.

Original Message :

Tsunami Observations

  • The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level
GAUGE LOCATIONLATLONTIME (UTC)HEIGHT (m)PERIOD (min)
Hrakleio (Greece)35.348425.152503:280.056

Volcanic Ash Advisory issued on 2025-05-19 at 17:42 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Volcanic ash emission obsd in webcam. Volcanic ash emission not vsbl in satellite img due to meteorological clouds but volcanic ash emission likely obscured. Ltlgc in forecast exp through t+12 hours. Mvmt and height based on webcam observation and nwp. Bertalan.

Original Message :

Tsunami Observations

  • The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level
GAUGE LOCATIONLATLONTIME (UTC)HEIGHT (m)PERIOD (min)
Hrakleio (Greece)35.348425.152503:280.056

Volcanic Ash Advisory issued on 2025-05-19 at 11:51 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Vona received. Volcanic ash emission obsd in webcam. Volcanic ash emission not vsbl in satellite img due to meteorological clouds but volcanic ash emission may be obscured. A more w mvmt exp through t+6 hours. Mvmt and height based on vona, webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-05-16 at 18:35 UTC.

    Key information extracted from original VAA message :


  • No rcnt volcanic ash.
  • No volcanic ash emission rcntly observation in satellite imagery or webcam. Webcam now obscured by weather no rcnt report of volcanic ash received. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-05-16 at 12:55 UTC.

    Key information extracted from original VAA message :


  • Poss volcanic ash emission continuing.
  • Emission seen in webcam but difficult to see if volcanic ash is containted volcanic ash not seen in satellite due to meteorological guidance shows a continue nw move through t+6 hours. Move and height based on model guidance. Kibler.

Original Message :

Volcanic Ash Advisory issued on 2025-05-16 at 06:53 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Emission of gas and steam with volcanic ash maybe mixed in.

Original Message :

Volcanic Ash Advisory issued on 2025-05-16 at 01:02 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Webcam shows incandescence at summit implying possible volcanic ash emission. Weather clouds obscuring summit on satellite and partly obscuring webcam. Nwp models suggest volcanic ash moving wsw with little change forecast. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-15 at 19:42 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash possibly continuing.
  • Volcanic ash not obsd by satellite or webcam as summit is.

Original Message :

Volcanic Ash Advisory issued on 2025-05-15 at 13:38 UTC.

    Key information extracted from original VAA message :


  • Poss volcanic ash emission.
  • Volcanic ash emission or clouds not obsd in satellite and webcab due to meteorological volcanic ash and direction based on prev vaa and model guidance. Nwp model forecast little change through. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2025-05-15 at 07:38 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not visible in satellite img likely due to heavy meteorological cloud cover. Volcanic ash emission maybe observation in webcam. Model guidance suggests w mvmt from summit to shift nw by t+12. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-15 at 02:05 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam?.
  • Volcanic ash emission obsd in webcam. No volcanic ash emission vsbl in satellite img due to meteorological clouds but volcanic ash emission may be obscured. A more w mvmt exp by t+6 hours. Mvmt and height based on webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-05-14 at 20:22 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Vona received. Volcanic ash emission obsd in webcam. Volcanic ash emission not.

Original Message :

Volcanic Ash Advisory issued on 2025-05-12 at 22:34 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission has disp.
  • Volcanic ash emission has disp in satellite imagery under clear conditions. No new emission observation. No reports of volcanic ash emission. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2025-05-12 at 16:40 UTC.

    Key information extracted from original VAA message :


  • Poss light steam/gas/va emission.
  • Poss light steam/gas/va emission obsd in webcam. Ovsicori reported continuous seismic tremor. Volcanic ash not obsd in satellite due to meteorological volcanic ash /dct based on prev advisory and model guidance. Nwp model forecast through t+0hr. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2025-05-12 at 10:55 UTC.

    Key information extracted from original VAA message :


  • Likely volcanic ash emission continuing.
  • Volcanic ash ems/clds not seen in satellite due to meteorological but volcanic ash emission likely continuing. Volcanic ash ems/dct based on prev advisory and model guidance. Nwp model forecast little change through t+12hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2025-05-12 at 05:07 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Volcanic ash emission obsd in webcam, but no volcanic ash emission obsd in satellite img due to meteorological a more w mvmt exp by t+12 hours. Mvmt and height based on webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-05-11 at 23:21 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. Minor 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 2025-05-11 at 17:25 UTC.

    Key information extracted from original VAA message :


  • Continuous emission obsd.
  • Webcam continues to show continuous steam and gas emission with light volcanic ash included. No clear volcanic ash signature obsd by satellite. Nwp models forecast volcanic ash to continue moving wsw through t+18hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-11 at 11:45 UTC.

    Key information extracted from original VAA message :


  • Continuous emission obsd.
  • Webcam shows continuous emission of mainly vapor and gas with light amts of volcanic ash within. Volcanic ash not obsd by satellite. Estd from webcam and nwp models which forecast volcanic ash to move wsw by t+12hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-11 at 05:43 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission obsd.
  • Volcanic ash emission obsd in webcam and satellite img extg apprx 10 nm w from summit. A more wsw mvmt exp by t+6 hours. Mvmt and height based on webcam, satellite observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-05-11 at 00:16 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 continuous steam/gas emission with some volcanic ash. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-10 at 18:24 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 continuous steam/gas emission with some volcanic ash. No change forecast to model winds at next 18 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-10 at 12:49 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash possibly obsd.
  • Webcam mainly obscured but does show hint of emission. Uncertainty exists on volcanic ash content. Volcanic ash not.

Original Message :

Volcanic Ash Advisory issued on 2025-05-10 at 07:04 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash remains possible.
  • Ongoing volcanic ash emission possible w of summit but no volcanic ash crntly observation in satellite imagery or webcam. Volcanic ash forecast through t+12 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-05-10 at 01:15 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on various satellite products 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 2025-05-09 at 19:30 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 hour. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-09 at 13:39 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Possible volcanic ash emission w of summit. Volcanic ash not observation in satellite imagery due to weather possible volcanic ash forecast to continue move w of summit through t+6hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2025-05-09 at 08:08 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission possible general w from summit but volcanic ash not crntly observation in satellite imagery. Occasional steam/gas emission with possible light volcanic ash observation in webcam. Volcanic ash forecast through t+12 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-05-09 at 02:08 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. Model winds at forecast to veer over next 18 hour eventually becoming more from the se. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-08 at 20:21 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Correction 2 for webcam observation and new vona repeat. Volcanic ash not detected on satellite due to weather clouds in summit area. Webcam shows increase volcanic ash emission last observation before a break in coverage at a manual station hour and vona confirms. Model winds at forecast to veer by t+18 hour becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-08 at 14:09 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Emission of gas and steam with possible light volcanic ash emission mixed in observation in webcam. Volcanic ash not detected in satellite img. Wsw mvmt to shift southwest by t+12. Forecast based on model guidance. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-08 at 08:18 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Steam/gas emission with possible light volcanic ash mixed in observation in webcam. Volcanic ash not observation in satellite imagery. Volcanic ash forecast through t+12 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-05-08 at 02:26 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not crntly observation in satellite imagery or webcam. Volcanic ash emission possible to the wsw of summit. Volcanic ash forecast through t+12 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-05-07 at 20:46 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. Model winds at forecast to back over.

Original Message :

Volcanic Ash Advisory issued on 2025-05-07 at 15:04 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission continue.
  • Volcanic ash emission observation in webcam. Volcanic ash not detected in satellite img. Model guidance suggests wnw mvmt from summit to shift southwest by t+12. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-07 at 09:29 UTC.

    Key information extracted from original VAA message :


  • Continuous light volcanic ash emission.
  • Continuous emission of steam gas and light volcanic ash continue on webcam. Volcanic ash not obsd by satellite partly due to weather cloud cover. Nwp models forecast volcanic ash to move wnw at t+6 but to move wsw by t+12. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-07 at 03:29 UTC.

    Key information extracted from original VAA message :


  • Continuous light volcanic ash emission.
  • Volcanic ash not obsd by satellite partly due to weather cloud cover. Webcam shows strong incandescence with emission of steam gas and light volcanic ash. Nwp models forecast volcanic ash to move w by t+12hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-06 at 21:31 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission possible.
  • Light volcanic ash emission possible move southwest from summit. Possible volcanic ash emission obscure by weather possible volcanic ash forecast to continue southwest move southwest of summit through t+6hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2025-05-06 at 15:48 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Mostly steam and gases noted in webcam, although occasional periods of light volcanic ash possible. Volcanic ash drifting to the southwest and near the summit. Lee.

Original Message :

Volcanic Ash Advisory issued on 2025-05-06 at 10:14 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission continuing.
  • Webcam shows emission of mainly steam and gas with small amounts of volcanic ash contained within. Summit.

Original Message :

Volcanic Ash Advisory issued on 2025-05-06 at 04:11 UTC.

    Key information extracted from original VAA message :


  • Continuous light volcanic ash emission.
  • Continuous emission of steam gas and light volcanic ash obsd by webcam moving southwest. Faint volcanic ash signature possibly obsd southwest of summit. Nwp models forecast volcanic ash to move w by t+12hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-05 at 22:10 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 becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-05 at 16:09 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Light volcanic ash emission observation in webcam. Volcanic ash not detected in satellite img. Model guidance suggests wsw mvmt from summit to shift southwest by t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-05 at 10:23 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Webcam shows continuous emission with at least light volcanic ash content. Satellite shows likely volcanic ash signature moving southwest from summit. Nwp models forecast genl wsw to southwest movement through t+18hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-05 at 04:27 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash em obsd.
  • Volcanic ash cloud seen by satellite moving wsw from summit to 10 nmi from summit. Vona reports ejecta and continuous volcanic ash emission. Webcam shows dark emission as well. Estd from nwp little change forecast in volcanic ash movement through t+18hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-04 at 22:29 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite due to weather clouds in summmit area. Vona inidcates volcanic ash emission. Model winds at forecast to veer next 18 hour eventually becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-04 at 16:49 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd in webcam.
  • Volcanic ash emission obsd in webcam and repeted in vona. Volcanic ash emission not vsbl in satellite img due to meteorological little change in forecast exp through t+18 hours. Mvmt and height based on vona, webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-05-04 at 11:06 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission on webcam.
  • Volcanic ash emission not obsd in satellite img due to meteorological clds, but some volcanic ash emission obsd in webcam. Little change in forecast exp through t+18 hours. Mvmt and height based on webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-05-04 at 05:14 UTC.

    Key information extracted from original VAA message :


  • Likely volcanic ash.
  • Volcanic ash not obsd by satellite due to weather cloud cover. Emission with incandescence obsd by webcam southwest. Uncertain of volcanic ash content in emission. Nwp models forecast volcanic ash to move w by t+12hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-03 at 23:08 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 next 18 hour eventually becoming more from the e. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-03 at 17:11 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission reported.
  • Vona reported volcanic ash emission. Volcanic ash not obsd in satellite due to meteorological volcanic ash /dct based on report and model guidance. Nwp model forecast backing through t+18hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2025-05-03 at 11:50 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission continuing.
  • Volcanic ash emission obsd in webcam. Volcanic ash not seen in satellite due to meteorological volcanic ash /dct based on prev advisory and model guidance. Nwp model forecast slightly veering through t+6hrs then backing through t+18hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2025-05-03 at 05:58 UTC.

    Key information extracted from original VAA message :


  • Vona report of volcanic ash emission.
  • Vona report of volcanic ash move w-ly from summit. Volcanic ash not seen in satellite due to meteorological model guidance shows a more wnw move by t+12 hours. Move and height based on vona and model guidance. Kibler.

Original Message :

Volcanic Ash Advisory issued on 2025-05-03 at 00:24 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Correction typo and vona information. Volcanic ash not detected on satellite due to weather clouds in summit area. Vona indicates volcanic ash emission continue. Model winds at forecast to veer next 12 hour eventually becoming more from the se. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-02 at 18:22 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Thin volcanic ash plume detected on satellite moving w of summit. Webcam shows continuous volcanic ash emission. Model winds at forecast to back next 6 hour becoming more from the ene. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-05-02 at 12:30 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission continuing.
  • Correction for wind speed. Volcanic ash emission obsd in webcam but not in satellite due to meteorological volcanic ash /dct based on prev advisory and model guidance. Nwp model forecast sw-ly and wsw-ly winds through t+18hrs. Zeng.

Original Message :

Volcanic Ash Advisory issued on 2025-05-02 at 06:33 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash activity continuing.
  • Volcanic ash activity continuing based on volcano report. Volcanic ash not seen in satellite or webcam due to meteorological a continue sw-ly move through t+18 based on model guidance. Kibler.

Original Message :

Volcanic Ash Advisory issued on 2025-05-02 at 00:44 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission likely continuing.
  • Volcanic ash not obsd by webcam or satellite due to xtnsv weather cloud cover. Nwp models suggest volcanic ash moving southwest and forecast winds to slowly veer through t+18hrs to moving volcanic ash wsw. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-05-01 at 18:39 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Intermittent volcanic ash emission observation in webcam along with emission of gas and steam. Volcanic ash not detected in satellite img. Model guidance suggests nw mvmt to shift southwest by t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-01 at 12:39 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Volcanic ash emission observation in webcam. Volcanic ash not visible in satellite img due to heavy meteorological cloud cover. Southwest mvmt to shift wnw by t+6. Forecast based on model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-05-01 at 06:44 UTC.

    Key information extracted from original VAA message :


  • Possible ongoing volcanic ash emission.
  • Darkness and dense cloud cover over the volume has obscured possible volcanic ash emission. However, activity likely ongoing due to past recent volume activity. Emission presumed move to southwest of the summit. Lee.

Original Message :

Volcanic Ash Advisory issued on 2025-05-01 at 01:05 UTC.

    Key information extracted from original VAA message :


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

Original Message :

Volcanic Ash Advisory issued on 2025-04-30 at 19:18 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission.
  • Volcanic ash emission obsd in webcam. Volcanic ash emission not obsd in satellite img due to meteorological little change in forecast exp through t+18 hours. Mvmt and height based on webcam observation and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-30 at 13:33 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission.
  • Continuous volcanic ash emission observation in webcam. Volcanic ash not detected in satellite img. Southwest mvmt exp through t+18. Forecast based on model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-29 at 23:29 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission not vsbl in satellite img due to meteorological volcanic ash emission may be obscured. Wnw mvmt exp to shift southwest by t+6 hours. Mvmt and height based on nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-29 at 17:58 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Volcanic ash emission obsd in webcam. Volcanic ash emission not vsbl in satellite due to meteorological clouds but volcanic ash emission likely obscured. Wnw mvmt exp to shift ssw by t+6 hours and exp to shift southwest by t+12 hours. Mvmt and height based on webcam and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-29 at 12:17 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Vona reports continuous volcanic ash emission to 300m above summit. Volcanic ash not obsd by satellite due to weather cloud cover. However volcanic ash.

Original Message :

Volcanic Ash Advisory issued on 2025-04-28 at 23:41 UTC.

    Key information extracted from original VAA message :


  • Ongoing light volcanic ash emission.
  • Continuous light volcanic ash emission crntly observation in webcam. 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 2025-04-28 at 18:04 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission likely.
  • Volcanic ash not crntly observation in satellite imagery or webcam but frqt volcanic ash observation in webcam during breaks in weather volcanic ash forecast through t+18 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-28 at 12:11 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Vona reports emission to 300m above summit moving southwest. Based on curnt webcam and nwp models volcanic ash likely moving wsw. Volcanic ash not obsd by satellite due to weather cloud cover. Nwp models forecast continued wsw movement through t+18 aside from t+6 with wnw movement forecast. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-28 at 06:30 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission has disp.
  • Volcanic ash emission has disp in satellite imagery. No new emission.

Original Message :

Volcanic Ash Advisory issued on 2025-04-28 at 00:40 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Volcanic ash emission observation in webcam and satellite img. Volcanic ash emission likely to continue. Model guidance suggests w mvmt from summit to shift southwest by t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-27 at 18:43 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Volcanic ash emission visible in webcam. Volcanic ash not visible in satellite img due to meteorological cloud cover. Nw mvmt to shift southwest by t+6. Forecast based on model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-27 at 12:51 UTC.

    Key information extracted from original VAA message :


  • Continue light volcanic ash em.
  • Em of volcanic ash with gas and steam seen on webcam. Volcanic ash obscured on satellite img by meteorological cloud cover. Exp wnw to nnw wind movnt through t+6 hours. Forecast bsd on nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2025-04-27 at 07:02 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. Minor volcanic ash emission likely continue recent activity. Model winds at forecast to veer next 6 hour becoming more from the ese. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-27 at 01:37 UTC.

    Key information extracted from original VAA message :


  • Rcnt volcanic ash observation.
  • Frqt volcanic ash emission observation in webcam during breaks in weather clouds the past few hours. Possible minor volcanic ash observation in satellite imagery apprx 10nm w from summit. Volcanic ash forecast through t+12 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-26 at 20:09 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Possible volcanic ash observation in webcam during breaks in weather clouds the past few hours. Volcanic ash not observation in satellite imagery. Volcanic ash forecast through t+6 hours based on nwp model guidance. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-26 at 14:09 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation.
  • Vona received. Volcanic ash emission observation in webcam but not detected in satellite img. North east mvmt exp through t+6. Forecast based on vona and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-26 at 04:40 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. New volcanic ash emission possible any any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-25 at 22:58 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Webcam shows impressive steam and gas plume exiting caldera to the north east. Emission may light volcanic ash content. Volcanic ash not clrly detected by satellite. Estd from webcam. Nwp models forecast e to north east movement through t+18hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-25 at 16:58 UTC.

    Key information extracted from original VAA message :


  • Low level volcanic ash em.
  • Vona received of volcanic ash em. Volcanic ash seen in webcam at low elev. No volcanic ash seen in satellite img due to meteorological cloud cover. Exp north east movnt through t+12 hours. Wind movnt bsd on nwp bsd on vona and pst activity. Liner.

Original Message :

Volcanic Ash Advisory issued on 2025-04-25 at 03:59 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-24 at 22:30 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission.
  • Volcanic ash emission observation in satellite img move nne ext approximate 10nm from summit. Mvmt exp to shift ese by t+6. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-24 at 07:28 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. Weather clouds cover part of summit area. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-24 at 01:38 UTC.

    Key information extracted from original VAA message :


  • Light volcanic ash emission.
  • Possible volcanic ash emission observation in satellite img move north east ext approximate 15nm from summit. Occasional volcanic ash emission may continue. Mvmt to shift se by t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-23 at 19:43 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not detected in satellite img maybe due to meteorological clouds obscure summit. Volcanic ash emission may continue. Model guidance suggests e mvmt to shift se by t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-23 at 14:06 UTC.

    Key information extracted from original VAA message :


  • Vona repeted volcanic ash emission.
  • Vona received. Volcanic ash emission obsd in webcam. Hot spot activity vsbl in satellite img, but volcanic ash emission obscured due to meteorological little change in forecast exp through t+6 hours. Mvmt and height based on vona, webcam and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-23 at 00:51 UTC.

    Key information extracted from original VAA message :


  • No volcanic ash emission.
  • Volcanic ash not detected in satellite img. No reports of volcanic ash emission received. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-22 at 18:54 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not detected in satellite img maybe due to meteorological cloud cover. Volcanic ash emission may continue. Nw mvmt from summit exp through t+6. Forecast based on model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-22 at 13:03 UTC.

    Key information extracted from original VAA message :


  • Vona report received.
  • Rcnt vona report received indicating volcanic ash emission mixing with steam/gas emission. Volcanic ash observation in webcam. Volcanic ash not crntly observation in satellite imagery. Volcanic ash based on vona. Volcanic ash forecast through t+6 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-22 at 06:35 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. Weather clouds cover part of summit area. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-22 at 01:10 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Volcanic ash emission have slowed but ongoing now move southwest ext approximate 15nm from summit. Mvmt exp to shift toward wsw by t+18. Forecast based on satellite img and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-21 at 21:02 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Vona received fr volcanic ash emission move southwest. Volcanic ash emission visible in webcam. Ongoing volcanic ash emission likely to continue. Mvmt exp to shift south by t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-21 at 04:21 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected mon various satellite products. Weather clouds cover much of summit area currently. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-20 at 22:29 UTC.

    Key information extracted from original VAA message :


  • Continue volcanic ash emission observation in webcam.
  • Continue volcanic ash emission observation in webcam. Volcanic ash not observation in satellite imagery. Volcanic ash forecast to move w of summit through t+12hrs before disp. Volcano activity low. Fisher.

Original Message :

Volcanic Ash Advisory issued on 2025-04-20 at 16:41 UTC.

    Key information extracted from original VAA message :


  • Continuous volcanic ash emission.
  • Vona reports volcanic ash obsd when webcam not obscured by weather cloud cover. Curntly clear webcam shows continuous volcanic ash emission.

Original Message :

Volcanic Ash Advisory issued on 2025-04-19 at 20:51 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission has disp.
  • Volcanic ash emission has disp in satellite imagery. No new emission.

Original Message :

Volcanic Ash Advisory issued on 2025-04-19 at 14:56 UTC.

    Key information extracted from original VAA message :


  • Vona repeted volcanic ash emission.
  • Vona received. Volcanic ash emission obsd in webcam but not on satellite img due to meteorological w mvmt exp to shift southwest by t+6 hours. Mvmt and height based on vona, webcam, and nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-19 at 11:08 UTC.

    Key information extracted from original VAA message :


  • No volcanic ash emission obsd.
  • No volcanic ash emission vsbl in satellite img. No rcnt repeats of volcanic ash emission received. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-19 at 05:23 UTC.

    Key information extracted from original VAA message :


  • Possible light volcanic ash em.
  • Volcanic ash not detected from satellite under mostly clear conditions. Webcam showed incandescence and possible volcanic ash em. Observation volcanic ash based on prev t+6 forecast. Turk.

Original Message :

Volcanic Ash Advisory issued on 2025-04-18 at 23:28 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Steam and gas emission obsd by webcam with possible light intermittent volcanic ash emission. Volcanic ash emission not obsd by satellite. Nwp models forecast little change in winds through. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-18 at 17:29 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Volcanic ash clouds obsd intermittently among occasional steam and gas emission on webcam. Volcanic ash not obsd by satellite partly due to weather cloud cover over summit. Nwp models forecast genl w-wsw movement through t+12hrs. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-18 at 11:24 UTC.

    Key information extracted from original VAA message :


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

Original Message :

Volcanic Ash Advisory issued on 2025-04-18 at 05:29 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission likely.
  • Ongoing steam/gas emission with some volcanic ash likely mixed in seen in webcam. Satellite imagery obscured by weather volcanic ash forecast through t+18 hours based on nwp. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-17 at 23:36 UTC.

    Key information extracted from original VAA message :


  • Continuing occasional to frqt volcanic ash emission.
  • Multiple volcanic ash clouds obsd by webcam moving w through 23:31 UTC before weather cloud cover moved in and obscured crater. Volcanic ash not obsd by satellite due to weather cloud cover. Observation based on webcam emission and nwp nwp models forecast volcanic ash to move wsw by. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-17 at 18:21 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash em.
  • Vona received of volcanic ash em. Volcanic ash seen in webcam but not seen in satellite img due to meteorological cloud cover. General southwest movnt exp through t+12 hours. Wind movnt bsd on nwp bsd on vona. Liner.

Original Message :

Volcanic Ash Advisory issued on 2025-04-17 at 12:35 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash em dtctd.
  • Vona received of volcanic ash em. Occasional volcanic ash seen on webcam. Exp wsw wind movnt through t+6 hours. Wind movnt bsd on nwp bsd on vona. Liner.

Original Message :

Volcanic Ash Advisory issued on 2025-04-12 at 19:22 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-12 at 13:53 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Vona reports possible volcanic ash emission and degassing from summit. No volcanic ash obsd by webcam due to weather cloud cover. Nwp models suggest winds are light and favoring southwest movement with w movement forecast by. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-11 at 19:03 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. Weather clouds cover part of summit area. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-11 at 13:13 UTC.

    Key information extracted from original VAA message :


  • Vona report of volcanic ash.
  • Vona report indicating volcanic ash likely. Volcanic ash not seen in satellite or webcam due to meteorological model guidance shows a w-ly move through t+12 hours at flight level 100 (3000m) confidence in height of volcanic ash is low. Kibler.

Original Message :

Volcanic Ash Advisory issued on 2025-04-09 at 20:24 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. Weather clouds cover much of summit area. Webcam shows mostly steam/gas emission currently. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-09 at 14:47 UTC.

    Key information extracted from original VAA message :


  • Vona report received.
  • Rcnt vona report received indicating volcanic ash emission moving w. Small volcanic ash emission observation in webcam. Steam observation in satellite imagery moving w. Volcanic ash forecast through t+6 hours based on nwp models and rcnt satellite imagery. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-09 at 12:21 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash not observation.
  • No rcnt volcanic ash emission observation in satellite imagery or webcam. Webcam shows emission of steam/gas. No rcnt reports of volcanic ash received. Coverdale.

Original Message :

Volcanic Ash Advisory issued on 2025-04-09 at 06:29 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Intermittent volcanic ash emission obsd by webcam and reported in vona to 1. 5 km above summit. Volcanic ash not obsd by satellite. Nwp models suggest volcanic ash moving ssw with little change in winds forecast through. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-04-09 at 00:28 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Volcanic ash emission observation in webcam. Volcanic ash not visible in satellite img. Southwest mvmt from summit exp through t+18. Forecast based on model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-08 at 18:32 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Possible volcanic ash emission observation in webcam but volcanic ash not detected in satellite img. Model guidance suggests se mvmt from summit to shift ssw by t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-08 at 12:58 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash em dtctd.
  • Corrected for : vona received of volcanic ash em. Occasional volcanic ash seen on webcam. Nwp models forecast movnt from south to se through t+6 hours. Bsd on vona. Liner.

Original Message :

Volcanic Ash Advisory issued on 2025-04-08 at 00:28 UTC.

    Key information extracted from original VAA message :


  • No volcanic ash emission.
  • Volcanic ash emission not detected in satellite img. No further reports of volcanic ash emission received. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-07 at 18:27 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not detected in satellite img. Volcanic ash emission likely continue. E mvmt from summit to shift ese by t+6. Forecast based on model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-07 at 12:23 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Dense volcanic ash emission noted in webcam imagery. Volcanic ash falling out over and slightly southwest of the summit. Lee.

Original Message :

Volcanic Ash Advisory issued on 2025-04-07 at 06:24 UTC.

    Key information extracted from original VAA message :


  • Occasional volcanic ash emission.
  • Emission of steam gas and volcanic ash obsd on webcam estimate to be moving southwest. Estd from webcam. Possible volcanic ash cloud signature.

Original Message :

Volcanic Ash Advisory issued on 2025-04-07 at 00:28 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission reported.
  • Vona received fr volcanic ash emission. Volcanic ash not visible in satellite img possible due to meteorological cloud cover. Model guidance suggests north mvmt from summit to shift ene by t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-04 at 10:35 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-04 at 04:42 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite but mhtg significant meteorological information indicates volcanic ash emission. No change forecast to model winds at.

Original Message :

Volcanic Ash Advisory issued on 2025-04-03 at 22:57 UTC.

    Key information extracted from original VAA message :


  • Ongoing volcanic ash emission.
  • Dense volcanic ash emission noted in cloud cover breaks in webcam. Volcanic ash also seen drifting near and to the w of the summit in infrared satellite imagery. Lee.

Original Message :

Volcanic Ash Advisory issued on 2025-04-03 at 17:10 UTC.

    Key information extracted from original VAA message :


  • Intermittent volcanic ash emission.
  • Light volcanic ash emission observation in webcam and satellite img move w ext approximate 10nm from summit. Volcanic ash emission likely to continue. A general w mvmt exp through t+18. Forecast based on satellite and model. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-03 at 11:08 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission not detected in satellite img. Occasional volcanic ash emission may continue. Model guidance suggests wsw mvmt from summit through t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-03 at 05:08 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite but mhtg significant meteorological information indicates volcanic ash emission. No change forecast to model winds at.

Original Message :

Volcanic Ash Advisory issued on 2025-04-02 at 23:20 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash emission not obsd in satellite img due to meteorological clouds but volcanic ash emission may be obscured. Wnw mvmt exp to shift wsw by t+6 hours and exp to shift more southwest by t+12 hours. Mvmt and height based on nwp. Bertalan.

Original Message :

Volcanic Ash Advisory issued on 2025-04-02 at 17:28 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash em dtctd.
  • Vona received of volcanic ash em movng w from summit. Volcanic ash crly seen on webcam. Wnw movnt to shift to wsw through t+18 hours. Wind movnt and bsd on vona and nwp. Liner.

Original Message :

Volcanic Ash Advisory issued on 2025-04-02 at 05:40 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ended.
  • Volcanic ash not detected on various satellite products. Weather clouds cover part of summit area. New volcanic ash emission possible at any. Konon.

Original Message :

Volcanic Ash Advisory issued on 2025-04-01 at 23:53 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Emission of gas and steam observation in webcam with possible light volcanic ash. Occasional volcanic ash emission may continue. Model guidance suggests wsw mvmt from summit exp through t+6. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-01 at 18:04 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation.
  • Vona received. Volcanic ash emission visible in webcam but not detected in satellite img. Model guidance suggests w mvmt from summit to shift wsw by t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-04-01 at 00:09 UTC.

    Key information extracted from original VAA message :


  • No volcanic ash emission.
  • Volcanic ash emission not detected in satellite img. No further reports of volcanic ash emission received. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-03-31 at 18:10 UTC.

    Key information extracted from original VAA message :


  • Possible volcanic ash emission.
  • Volcanic ash not visible in satellite img maybe due to meteorological cloud cover. Volcanic ash emission likely to continue. North mvmt from summit exp through t+6. Forecast confidence low. Gatling.

Original Message :

Volcanic Ash Advisory issued on 2025-03-31 at 12:14 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission obsd.
  • Volcanic ash emission reported by vona to 600m above summit. Webcam shows continuous steam and gas emission with occasional volcanic ash emission. Satellite shows emission reaching about 10 nmi w-wsw of summit. Volcanic ash forecast to move wnw by. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-03-29 at 11:12 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission has disp in satellite imagery. No new emission.

Original Message :

Volcanic Ash Advisory issued on 2025-03-29 at 05:25 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission ongoing.
  • Volcanic ash not detected on satellite. Mhtg significant meteorological information indicates volcanic ash emission. Model winds at forecast to veer?.

Original Message :

Volcanic Ash Advisory issued on 2025-03-28 at 23:44 UTC.

    Key information extracted from original VAA message :


  • Volc activity likely continuing.
  • Volcanic ash cloud possibly obsd moving wsw from the summit. Webcam obscured by weather cloud cover. Vona reports volcanic ash reached 500m above summit today. Nwp models forecast volcanic ash to move ssw by t+6. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-03-28 at 17:46 UTC.

    Key information extracted from original VAA message :


  • Multiple small volcanic ash emission.
  • Very small volcanic ash clouds obsd by webcam at 17:72 UTC 17:73 UTC and 17:74 UTC on webcam among greater steam and gas emission. Volcanic ash clouds barely reaching caldera level. Volcanic ash not obsd by satellite partly due to weather clouds obscuring summit. Estd from webcam and nwp models with little change forecast. Hosley.

Original Message :

Volcanic Ash Advisory issued on 2025-03-27 at 07:50 UTC.

    Key information extracted from original VAA message :



Original Message :