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. Johnston Ridge and Highway 504 would not receive any ash fall under these conditions.

Recent observations: The crater is clear today, and when low clouds dissipate the view from JRO should be excellent. Analyses of images from the USGS camera at the crater mouth reveal that the smooth lava spine continues to grow. The spine is presently about 160 m (525 ft) tall from ground level to its top, and it stands about 180 m (600 ft) higher than the old lava dome. It is now taller than it has ever been. In the coming days and weeks rockfalls are likely to occur.