Mt. Fitzherbert

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 to the west.

Recent observations: The sky is clear at the volcano, although fog persists in the valley. From the USFS camera at Johnston Ridge, dust plumes can be seen in the crater and drifting above the crater rim due to wind remobilizing old ash and other fine-grained material. This is a common occurrence when we have stretches of hot dry weather has we have had this past week. Low-level earthquake activity and rates of deformation continue to accompany the extrusion of the lava dome.