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 northeastward.

Recent observations: Storm noise during periods of heavy rain and strong wind dominates seismic signals from the volcano this morning and likely will continue to do so throughout the day. A magnitude 2.6 earthquake in the Portland area at 9:35 p.m. local time Sunday was recorded by stations in the Mount St. Helens seismic network but is unrelated to the ongoing eruption. Acoustic flow monitors are recording signals from rain-induced debris flows in the crater and in the upper reaches of the North and South Fork Toutle River valleys. The storm has caused telemetry outages from a few monitoring stations that will require attention at the next opportunity for field work.