Mt. Fitzherbert

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that ash clouds that rise up to about 15,000 feet above the crater rim (about 23,000 feet above sea level) today would drift northwestward, but higher- altitude ash clouds would drift southeastward.

Recent observations: Small rock falls continue from the growing lava dome. Larger ones may produce ash plumes that are visible above the crater rim. Patterns of earthquakes and ground deformation remain unchanged from recent trends. Repeat images from fixed cameras within the crater and at the crater rim show that the seventh lava spine continues to push upward and southwestward from a source just south of the 1980- to-1986 dome.