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 westward at low altitudes and southward at higher altitudes early in the day and westward at all altitudes later. Forecast wind speeds remain low, so any ash clouds would drift slowly.

Recent observations: The growing lava dome is clear this morning with only minor fuming from several persistent areas of gas release. Seismicity remains remarkably constant. If wind conditions tomorrow permit, scientists will make aerial measurements of gas emissions. No other field work is planned for this week.