(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	(20090315/2350Z)
(3) Volcano:	Redoubt (VNUM #313030)
(4) Current Color Code:	ORANGE
(5) Previous Color Code:	YELLOW
(6) Source:	Alaska Volcano Observatory
(7) Notice Number:	2009/A7
(8) Volcano Location:	N 60 deg 29 min W 152 deg 44 min
(9) Area:	Cook Inlet-South Central
(10) Summit Elevation:	10197 ft (3108 m)
(11) Volcanic Activity Summary:	Seismic activity at Redoubt has increased since about 13:00 AKDT and is continuing. An AVO observation flight reported that a steam and ash plume rose as high as 15,000 ft above sea level and produced minor ash fall on the upper south flank of Redoubt. Last reports are that the plume is now mainly steam. Based on thsi change in activity AVO is increasing the level of concern and alert level to ORANGE/WATCH. It does not appear at this time that a significant eruption is likely in the short term, but conditions may evolve rapidly. AVO is monitoring the situation closely and the AVO operations center in Anchorage is now resuming 24 hour per day staffing.
(12) Volcanic cloud height:
(13) Other volcanic cloud information:
(14) Remarks:
(15) Contacts:	Tom Murray, Scientist-in-Charge, USGS tlmurray@usgs.gov (907) 786-7497 Steve McNutt, Coordinating Scientist, UAF steve@giseis.alaska.edu (907) 474-7131
(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

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AVO/USGS Volcanic Activity Notice

Volcano: Redoubt (VNUM #313030)

Current Volcano Alert Level: WATCH
Previous Volcano Alert Level: ADVISORY

Current Aviation Color Code: ORANGE
Previous Aviation Color Code: YELLOW

Issued: Sunday, March 15, 2009, 3:50 PM AKDT
Source: Alaska Volcano Observatory
Notice Number: 2009/A7
Location: N 60 deg 29 min W 152 deg 44 min
Elevation: 10197 ft (3108 m)
Area: Cook Inlet-South Central

Volcanic Activity Summary: Seismic activity at Redoubt has increased since about 13:00 AKDT and is continuing. An AVO observation flight reported that a steam and ash plume rose as high as 15,000 ft above sea level and produced minor ash fall on the upper south flank of Redoubt. Last reports are that the plume is now mainly steam.

Based on thsi change in activity AVO is increasing the level of concern and alert level to ORANGE/WATCH.

It does not appear at this time that a significant eruption is likely in the short term, but conditions may evolve rapidly.

AVO is monitoring the situation closely and the AVO operations center in Anchorage is now resuming 24 hour per day staffing.

Contacts: Tom Murray, Scientist-in-Charge, USGS
tlmurray@usgs.gov (907) 786-7497

Steve McNutt, Coordinating Scientist, UAF
steve@giseis.alaska.edu (907) 474-7131

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

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