(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	(20170613/0213Z)
(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
(9) Area:	Aleutians
(10) Summit Elevation:	492 ft (150 m)
(11) Volcanic Activity Summary:	A short-lived eruption of Bogoslof volcano began June 13 at 01:47 UTC (17:47 AKDT June 12) and lasted about 9 minutes according to seismic and infrasound data. No ash cloud has been detected in satellite data yet but a single lightning stroke has been observed, thus volcanic ash emissions are likely occurring. Winds are to the southeast and no ashfall is expected on communities. We are evaluating the magnitude of this eruptive episode and activity may resume at any time. The Aviation Color Code remains at ORANGE and the Volcano Alert Level remains at WATCH at present. AVO is evaluating all data sources and will update this report as more information becomes available.
(12) Volcanic cloud height:	None detected yet. NWS eruption SIGMET issued to 25,000 ft asl.
(13) Other volcanic cloud information:	n/a
(14) Remarks:	The National Weather Service Alaska Aviation Weather Unit has issued an eruption SIGMET warning for aviation up to 25,000 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.
(15) Contacts:	Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497 Jeff Freymueller, Coordinating Scientist, UAF jfreymueller@alaska.edu (907) 322-4085
(16) Next Notice:

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AVO/USGS Volcanic Activity Notice

Volcano: Bogoslof (VNUM #311300)

Current Volcano Alert Level: WATCH

Current Aviation Color Code: ORANGE

Issued: Monday, June 12, 2017, 6:13 PM AKDT
Source: Alaska Volcano Observatory
Notice Number:
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians

Volcanic Activity Summary: A short-lived eruption of Bogoslof volcano began June 13 at 01:47 UTC (17:47 AKDT June 12) and lasted about 9 minutes according to seismic and infrasound data. No ash cloud has been detected in satellite data yet but a single lightning stroke has been observed, thus volcanic ash emissions are likely occurring. Winds are to the southeast and no ashfall is expected on communities.

We are evaluating the magnitude of this eruptive episode and activity may resume at any time. The Aviation Color Code remains at ORANGE and the Volcano Alert Level remains at WATCH at present. AVO is evaluating all data sources and will update this report as more information becomes available.

Recent Observations:
[Volcanic cloud height] None detected yet. NWS eruption SIGMET issued to 25,000 ft asl.
[Other volcanic cloud information] n/a
[Lava flow/dome] N/A
[Lava flow] N/A

Remarks: The National Weather Service Alaska Aviation Weather Unit has issued an eruption SIGMET warning for aviation up to 25,000 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.

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

Jeff Freymueller, Coordinating Scientist, UAF
jfreymueller@alaska.edu (907) 322-4085

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.

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