Semisopochnoi Volcano Volcanic Ash Advisory: VA ERUPTION APPROX 14Z. to 10000 ft (3000 m)

Wed, 21 Apr 2021, 16:00
16:00 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 and is moving at 10 kts in SW direction.
The full report is as follows:

FVAK21 at 15:49 UTC, 21/04/21 from PAWU
VAAAK1
VA ADVISORY

DTG: 20210421/1550Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2021/015

INFO SOURCE: HIMAWARI/GOES

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: VA ERUPTION APPROX 14Z.

OBS VA DTG: 21/1550Z

OBS VA CLD: SFC/FL100 N5203 E17960 - N5107 E17920 - N5128 E17801
- N5220 E17837 - N5203 E17960 MOV SW 10KT.

FCST VA CLD +6HR: 21/2150Z SFC/FL100 N5126 E17938 - N5004 E17753
- N5122 E17552 - N5220 E17835 - N5126 E17938.

FCST VA CLD +12HR: 22/0350Z SFC/FL100 N5223 E17635 - N5050
E17839 - N4929 E17621 - N5113 E17351 - N5223 E17635.

FCST VA CLD +18HR: 22/0950Z SFC/FL100 N5232 E17507 - N5043
E17758 - N4903 E17502 - N5045 E17147 - N5232 E17507 - N5232
E17507.

RMK: NONE.

NXT ADVISORY: WILL BE ISSUED BY 20210421/2150Z

BH APR 2021 AAWU

Previous news

Show more
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

More on VolcanoDiscovery

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.