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 northward at low altitudes and eastward at higher altitudes early in the day and east-northeastward at all altitudes later in the day.

Recent observations: Field crews are out again today winterizing broadband seismometers and setting out control points for a new set of aerial photographs. If winds aren't too strong, we'll also conduct a gas-sensing flight. Observations made yesterday in the helicopter show that westward growth of the new lava dome has so squeezed and thickened the west arm of the glacier that the highest point on the glacier now stands above the summit of the old lava dome.