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National Situation Update: Wednesday, February 21, 2007

Homeland Security Threat Level: YELLOW (ELEVATED).

National Weather Summary

West:  Expect areas of heavy precipitation across northern California today as several inches of rain are likely in the lower elevations of the coastal mountains. Heavy snow will be moving southward from the Shasta and Siskiyou chains to the Sierra Nevada.  Snow levels will be in the 2500- to 4000-foot range making travel over Siskiyou Summit on I-5 very difficult.

The forecast is for lighter precipitation across Washington and Oregon but rain and snow showers will persist.  Elsewhere, dry conditions will prevail across the region.

South:  Much of the Southeast will be cloudy today with scattered areas of showers. Isolated thundershowers are also possible.

Midwest:  Much of the Midwest will be dry and temperatures will be above average. Some light snow may develop later in the day across northern sections of North Dakota and Minnesota as low pressure approaches from Canada.

Northeast:  Parts of Upstate New York and New England will see the mercury dip a bit today, but the region will be dry.  (NWS, Media Sources)

Tropical Weather Outlook

Atlantic/Caribbean/Eastern Pacific: No significant activity to report.
Western Pacific: No activity threatening U.S. Territories. (NOAA, National Hurricane Center, Central Pacific Hurricane Center and the Joint Typhoon Warning Center)

Earthquake Activity

Five earthquakes ranging in magnitude from 5.1 to 5.7 struck the Indonesian region near Moluccas over the past 24 hours.  There were no reports of tsunami or damage.(USGS, Earthquake Hazards Program, Alaska Earthquake Information Center, Pacific Tsunami Warning Center, and West Coast/Alaska Tsunami Warning Centers)

Preliminary Damage Assessments

No new activity (FEMA HQ)

Wildfire Update

No significant activity.
National preparedness level is 1 (lowest on a 1-5 scale). (National Interagency Fire Center)

Disaster Declaration Activity

No new activity (FEMA HQ)