Printer friendly version
13:00: Increase in summit seismic activity during last 3 hours, new Redoubt update upgrading level of concern color code to ORANGE.
17:23: Onset of explosive event; lasts 8 minutes at SPU.
17:28: Report from DROF, vertical eruption cloud, drifting to NE.
17:30: Pilot report of plume to 30,000 ft and drifting E towards Kenai.
17:31: Seismicity at SPU station returns to background.
17:33: 2 lightning strikes recorded on LDS to the NW, which is direction of 18k forecasted winds. Experimental flood flow sensor 1 triggered.
17:40: AVO COSPEC crew observes cloud-to-cloud lightning.
18:00: Total of 4 strikes recorded on LDS, all to NW. AVO-FBXs reports plume to 30,000 ft from slow scan observations.
18:08: Leading edge of ash plume reaches W coast of Kenai Peninsula just S of Nikiski.
18:50: Pilot report of plume to 33,000 feet.
19:00: Call to Kenai; dark cloud overhead, but no ashfall to ground yet.
PM: Light ashfall in Kenai.