Mt. Fitzherbert

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that any ash clouds that rise above the crater rim today would drift northeastward.

Recent observations: The crater is partly obscured by low clouds this morning. Field parties yesterday repaired a seismic station, serviced several GPS stations, repaired a camera, and examined deposits from last week’s Memorial Day avalanche. Seismicity and repeat photography indicate that lava extrusion and rockfalls from the growing spine are continuing. Some of the larger rockfalls can be expected to cause dust plumes that could rise above the crater rim and be visible from Johnston Ridge Observatory and elsewhere in the vicinity.