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 early today would drift northeastward at low elevations, and east-southeastward at high elevations. Later in the day ash would drift east-southeastward at low elevations, and southeastward at high elevations.

Recent observations: It is sunny and clear today at the mountain and partly sunny conditions are expected for the remainder, allowing visual observations from the ground and air. Monitoring instruments show no significant change in patterns of earthquake activity or deformation. Seismicity continues as very small periodic earthquakes, recurring every few minutes, punctuated by occasional larger but still small events. The larger earthquakes are typically less than M3 and occur at an average rate of less than 1 per day. The active dome is building with motion to the west at about 1 meter per day, consistent with the trend established over the last two months. Monitoring data are within the range of typical recent values.