Mt. Fitzherbert

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that ash clouds that rise above the crater rim would drift northeast in the morning, changing to southeast by afternoon.

Recent observations: With the onset of a winter storm the mountain is enveloped in clouds. Our instrumental signals indicate no significant change in patterns of seismicity. There have been some rockfalls, judging from the seismic traces. The GPS receiver on the new dome shows that new lava emerging from the vent is still plowing westward at about a meter per day as it piles up on the south and southwest portions of the crater floor.