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2006 August 03

USGS Update 2006-Aug-03 08:45

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that any ash clouds rising above the crater rim today would drift broadly south-southwestward to south-southeastward at low elevation, and east-northeastward to east-southeastward at higher elevations.

Recent observations: The mountain and crater are clear and visibility is excellent this morning. Minor rockfalls continued to spall from the extruding lava dome overnight. There have been no significant changes in seismicity or ground deformation at the mountain in the past 24 hours. Two prominent local earthquakes that occurred early this morning (M3.8 at 1:39am located 4 mi west-northwest of Battle Ground, and M2.7 at 3:27am located 9 mi north-northeast of Ashford) show up clearly on the Mount St. Helens seismic records, but should not be confused with eruptive activity at the mountain.