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 northwestward.

Recent observations: The spine in the middle of the lava-dome complex continues to grow, accompanied periodically by rockfalls and moderate-size rock avalanches. Seismicity and motion of the west part of the new dome remain at levels typical of the past few days. Rockfalls and avalanches caused by the growing spine can generate ash clouds that rise above the crater rim.