Mt. Fitzherbert

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that any ash clouds rising above the crater rim today would drift northerly in the morning, shifting to north-northeasterly by afternoon.

Recent observations: The slow growth of the lava dome likely continues, on the basis of sparse volcanic-related seismicity and the time-lapse sequence of fixed-camera images this past week. Waveforms from in-crater seismometers are chiefly emergent in aspect, characteristic of rockfall and glacially induced seismic noise. The daily cyclic variation in real-time seismic amplitude measurements is also glaciogenic. The dome this morning sports its characteristic whitish weak steam and fume plume from the east summit of the active spine 7.