« USGS Update 2007-Jan-17 11:36 | Main | USGS Update 2007-Jan-19 10:49 »

2007 January 18

USGS Update 2007-Jan-18 09:30

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 southeastward.

Recent observations: Mount St. Helens remains obscured by clouds this morning. Instruments are showing little to no change, so we presume that the volcano continues slow extrusion of a lava spine. Seismicity is low, though there is the occasional magnitude 1-3 earthquakes associated with rock falls and avalanches. Field parties are scheduled to make observations and repair instruments this week if weather permits.