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 southeastward at low altitudes. Higher altitude clouds would drift east-northeastward early in the day and eastward later.

Recent observations: Images from the Sugar Bowl DomeCam, which lies at the mouth of the crater, show clearly that the northwest part of the new lava dome continues to grow upward at several meters per day. Seismicity remains largely unchanged—small earthquakes occur at the rate of roughly one every three to six minutes.