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 eastward to east-northeastward.

Recent observations: Scientists have traced the cause of the recent loss of signals from several crater seismic stations to a combination of ice and strong winds that slightly rotated a satellite-telemetry antenna. Once the wind drops, we should be able to realign the antenna and get the signals back. The current weather-related problems demonstrate the need for our redundant telemetry paths (ground-based radio and satellite) and dual bases (Vancouver and Seattle), which provide robustness to the monitoring system. Eruptive activity remains unchanged from recent patterns.