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-northeastward to northeastward.

Recent observations: The growing lava spine continues to generate rockfalls. Last night, just before 11 pm PDT, one of the larger earthquakes that typically occur once or twice per day was accompanied by a substantial amount of rockfall. An image taken by a remote camera on the crater rim about 20 minutes after the event shows that glowing hot rock debris had been delivered to the talus aprons that flank the steep north and south margins of the spine. Such events are likely accompanied by ash clouds; VolcanoCam images show a small ash cloud produced by a rockfall about 8:30 am PDT this morning.