|(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:||An explosive eruption began at Bogoslof volcano at 02:08 20 February UTC (17:08 19 February AKST) as indicated in seismic and infrasound data. At this time there have been no satellite images received to indicate size of volcanic plume. The Aviation Color Code remains at ORANGE, but we will continue to monitor data closely and provide updates as necessary.|
|(12) Volcanic cloud height:||None observed yet|
|(13) Other volcanic cloud information:||Not available|
|(14) Remarks:||The National Weather Service Alaska Aviation Weather Unit has issued an eruption SIGMET warning for aviation up to XX,XXX ft above sea level. This may be revised as new information becomes available. Please see the NWS AAWU at http://www.weather.gov/aawu/sigmets for updated information on aviation warning messages.
Winds at the volcano would currently carry an eruption cloud southeast towards Unalaska Island. Please see the National Weather Service for notices regarding ashfall: http://www.weather.gov/afc/
|(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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