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(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued: (20181121/1915Z)
(3) Volcano: Veniaminof (VNUM #312070)
(4) Current Color Code: RED
(5) Previous Color Code: ORANGE
(6) Source: Alaska Volcano Observatory
(7) Notice Number:
(8) Volcano Location: N 56 deg 11 min W 159 deg 23 min
(9) Area: Alaska Peninsula
(10) Summit Elevation: 8225 ft (2507 m)
(11) Volcanic Activity Summary: Overnight, ash emissions from Veniaminof increased significantly, generating a plume up to 15,000 ft asl and extending for more than 150 miles to the SE. This morning observers in Perryville and webcam views indicated continuous ash emissions. This activity is a significant increase from the past month and AVO is raising the Aviation Color Code to Red and the Volcano Alert Level to Warning.

A SIGMET warning for aviation has been issued by the National Weather Service. Please reference https://www.weather.gov/aawu/sigmets for updated guidance on airborne ash hazards.
(12) Volcanic cloud height: Up to ~15,000 ft
(13) Other volcanic cloud information: Continuous ash emissions observed in webcam
(14) Remarks: Ash fall is possible in nearby communities. The National Weather Service Anchorage Forecast Office will issue an advisory if this is expected to occur.
https://www.weather.gov/afc/
(15) Contacts: Michelle Coombs, Scientist-in-Charge, USGS
mcoombs@usgs.gov (907) 786-7497

David Fee, Coordinating Scientist, UAFGI
dfee1@alaska.edu (907) 322-4085
(16) Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at
http://www.avo.alaska.edu

AVO/USGS Volcanic Activity Notice

Volcano: Veniaminof (VNUM #312070)

Current Volcano Alert Level: WARNING
Previous Volcano Alert Level: WATCH

Current Aviation Color Code: RED
Previous Aviation Color Code: ORANGE

Issued: Wednesday, November 21, 2018, 10:15 AM AKST
Source: Alaska Volcano Observatory
Notice Number:
Location: N 56 deg 11 min W 159 deg 23 min
Elevation: 8225 ft (2507 m)
Area: Alaska Peninsula

Volcanic Activity Summary: Overnight, ash emissions from Veniaminof increased significantly, generating a plume up to 15,000 ft asl and extending for more than 150 miles to the SE. This morning observers in Perryville and webcam views indicated continuous ash emissions. This activity is a significant increase from the past month and AVO is raising the Aviation Color Code to Red and the Volcano Alert Level to Warning.

A SIGMET warning for aviation has been issued by the National Weather Service. Please reference https://www.weather.gov/aawu/sigmets for updated guidance on airborne ash hazards.


Recent Observations:
[Volcanic cloud height] Up to ~15,000 ft
[Other volcanic cloud information] Continuous ash emissions observed in webcam

Remarks: Ash fall is possible in nearby communities. The National Weather Service Anchorage Forecast Office will issue an advisory if this is expected to occur.
https://www.weather.gov/afc/

Contacts: Michelle Coombs, Scientist-in-Charge, USGS
mcoombs@usgs.gov (907) 786-7497

David Fee, Coordinating Scientist, UAFGI
dfee1@alaska.edu (907) 322-4085

Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at
http://www.avo.alaska.edu

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.