Mt. Fitzherbert

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that ash clouds rising above the crater today would be transported to the east-southeast.

Recent observations: Seismicity accompanying steady lava dome extrusion continues unabated, with small earthquakes occurring every 1-2 minutes. With clear and warm weather forecast through early next week it is possible that ash clouds from large rockfalls will on occasion be visible from the Portland area, and views of the crater and ongoing eruption should be excellent from the US Forest Service’s visitor’s centers at Coldwater Ridge and Johnston Ridge. Field crews yesterday completed a campaign GPS survey of benchmarks in the National Volcano Monument, spent several hours doing geological reconnaissance on the eastern (older) side of the new dome complex, and serviced several remote cameras on the crater rim. More fieldwork is planned for today, with field crews retrieving a number of temporary seismometers deployed last fall and exploring potential locations for a new remote camera station on the crater rim.