|(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)|
|(3) Volcano:||Bogoslof (VNUM #311300)|
|(4) Current Color Code:||ORANGE|
|(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:||AVO has detected an increase in seismic activity and infrasound consistent with an explosive eruption at Bogoslof volcano beginning at 12:05 UTC (04:05 AKDT) August 30 and continuing. A low-level ash cloud producing lightning has been detected in satellite data, but does not appear to be much higher than about 20,000 feet above sea level. Emission of volcanic ash is likely occurring based on seismic, infrasound, lightning, and satellite data. Winds are toward south-southeast.
The Aviation Color Code remains at ORANGE and the Volcano Alert Level remains at WATCH. AVO is evaluating all data sources and will provide more information as it becomes available.
|(12) Volcanic cloud height:||About 20,000 feet above sea level|
|(13) Other volcanic cloud information:||winds toward south southeast|
|(14) Remarks:||Please see the NWS AAWU at http://www.weather.gov/aawu/sigmets for updated information on aviation warning messages.|
|(15) Contacts:||Michelle Coombs, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Jeff Freymueller, Coordinating Scientist, UAFGI
email@example.com (907) 322-4085
|(16) Next Notice:|
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