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 southeastward early in the day and eastward later.

Recent observations: Analysis of DomeCam images from the Sugar Bowl camera and GPS data from the west arm of the glacier shows that the northern part of the lava dome continues to move westward. In doing so it is pushing the west glacier, which is thickening, increasing its rate of flow, and becoming more crevassed. This process is similar to what happened to the east glacier over the winter when the dome was growing eastward. Crews are in the field today to reposition GPS spiders, retrieve seismic equipment, and install an additional camera.