(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:(20090330/1314Z)
(3) Volcano:Redoubt (CAVW# 1103-03-)
(4) Current Color Code:RED
(5) Previous Color Code:
(6) Source:Alaska Volcano Observatory
(7) Notice Number:2009/A29
(8) Volcano Location:N 60 deg 29 min W 152 deg 44 min
(9) Area:Cook Inlet-South Central Alaska
(10) Summit Elevation:10197 ft (3108 m)
(11) Volcanic Activity Summary:AVO has re-analyzed the event reported as an explosive eruption at Redoubt volcano occurring at approximately 23:14 AKDT on March 29 (07:14 UTC March 30). At that time, there was heightened tremor, however, seismic and infrasound data do not show clear evidence that an explosion occurred and this will not be categorized as an explosive eruption.
(12) Volcanic cloud height:Unknown
(13) Other volcanic cloud information:Unknown
(14) Remarks:Radar showed a cloud top above 20,000 ft above sea level at the time of heightened tremor.
(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 VONA will be issued if conditions change significantly or alert levels are modified. While a VONA is in effect, regularly scheduled updates are posted at
http://www.avo.alaska.edu