|(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)|
|(3) Volcano:||Bogoslof (VNUM #311300)|
|(4) Current Color Code:||RED|
|(5) Previous Color Code:||ORANGE|
|(6) Source:||Alaska Volcano Observatory|
|(7) Notice Number:|
|(8) Volcano Location:||N 53 deg 55 min W 168 deg 2 min|
|(10) Summit Elevation:||492 ft (150 m)|
|(11) Volcanic Activity Summary:||An ash-producing eruption started at 14:05 AKST (23:05 UTC) today and is continuing as recorded by seismic data on nearby islands, by lightning, and as seen in recent satellite images. Cloud-top temperatures from satellite suggest a cloud height of around 30,000 ft asl. Regional winds are from the west-southwest. We are raising the Aviation Color Code to RED and the Alert Level to WARNING.
AVO has no ground-based volcano monitoring equipment on Bogoslof volcano. We continue to monitor satellite images, information from the Worldwide Lightning Location Network pertaining to volcanic-cloud lightning, and data from seismic and infrasound instruments on other islands for indications of volcanic activity. At present, these observations should allow timely detection of additional explosive events.
|(12) Volcanic cloud height:||Likely around 30,000 ft asl from satellite|
|(13) Other volcanic cloud information:||Winds are from west-southwest|
|(14) Remarks:||Status of the ash cloud can be found at the Alaska Aviation Weather Unit website at http://aawu.arh.noaa.gov/|
|(15) Contacts:||Michelle Coombs, Scientist-in-Charge, USGS
email@example.com (907) 786-7497
Pavel Izbekov, Acting Coordinating Scientist, UAFGI
firstname.lastname@example.org (907) 322-4085
|(16) Next Notice:|
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