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 north-north-eastward in the morning then shift to a more eastward trajectory in the afternoon.

Recent observations: The mountain is obscured by clouds this morning, with unsettled weather today. Our instruments show no significant change in patterns of seismicity or deformation. Seismicity continues its ongoing procession of small earthquakes every several minutes, punctuated by the occasional larger earthquake, e.g., a larger event at 4:13PST on Monday. The active dome continues to extrude to the west, on-trend with recent motion. Monitoring data are within the range of their typical recent values.