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National Situation Update: Friday, March 23, 2007

Homeland Security Threat Level: YELLOW (ELEVATED).

National Weather

Midwest:
Showers and thunderstorms will stretch across the central Plains, Mississippi Valley and Ohio Valley today.

High temperatures will be 5 to 30 degrees above average region-wide.

Snow melt in the Upper Midwest will enhance river flooding.

Northeast:
A cold front will move through New York, New England, Pennsylvania and New Jersey Friday morning.

South of the Mason-Dixon Line will see scattered thunderstorms.

Snow melt will cause river flooding, especially along the upper sections of the Susquehanna and its tributaries.

South:
Thunderstorms will move eastward from the southern high Plains to the lower Mississippi Valley today.

The thunderstorms will occasionally turn severe and produce locally flooding rains in western Texas and western Oklahoma.

The persistent easterly winds along the Atlantic beaches of Florida will generate a continuing high rip current threat plus moderately high surf.

West:
There are forecast showers and thunderstorms for Arizona, southeast Utah, New Mexico and Colorado.

A few of the thunderstorms will turn severe in eastern New Mexico.

There is a showery Pacific system that will move across the Northwest today.  (NWS, media sources)

AK-Avalanche Danger near Juneau-03/22/07, 1930 EDT

More than 60 homes, a hotel, boat harbor, several roadways, and sections of Egan Expressway, are at risk from several avalanche paths sweeping down from Mount Juneau.

The threat level remains extreme but is decreasing slightly due to less than expected rainfall.

Forecasters warned continued high winds and rain could still set off slides from a heavy snow pack. 

Tuesday night the city warned residents in the two neighborhoods mos t at-risk of avalanches to be prepared to evacuate if necessary. 

As of 4 a.m. Wednesday March 22, 2007, a new city record for snowfall was set.

The Alaska Chapter, American Red Cross has opened a shelter in Juneau at the Zach Hatcher Youth Center.

The shelter population is zero.

The shelter will remain open as long as the threat continues.

No Stafford Act assistance has been requested. 

The FEMA State Liaison has been briefed, and is on standby. 

FEMA Region X RRCC will continue to monitor the situation. (FEMA Region X, Local media sources)

AS-American Samoa Tropical Cyclone Formation-3/22/07-1730EDT

The National Weather Service (NWS) has posted a Flood Statement for American Samoa due to moisture generated from a tropical system located near 14.9S 175.1E in the south Pacific. 

The system is stationary and has no projected path at this time.

The Joint Typhoon Warning Center (JTWC) has issued a Tropical Cyclone Formation Alert WTPS21 for the weather system and has stated that formation of a tropical cyclone within a 250 NM radius in the next 12-24 hours is good. 

The system, which is located 190 NM NW of Fiji, has winds estimated at 25 to 30 knots and an estimated pressure of 1004 MB at sea level. 

No Federal involvement is anticipated at this time.  (JTWC and NWS)

Tropical Weather Outlook

Atlantic/Caribbean/Eastern Pacific: No significant activity to report.

Western Pacific: Formation of a significant tropical cyclone is possible within the next 12 to 24 hours; available data does not justify issuance of numbered tropical cy-Clone warnings at this time. Located approximately 218 miles northwest of Nadi, Fiji.  (NOAA, National Hurricane Center, Central Pacific Hurricane Center and the Joint Typhoon Warning Center)

Earthquake Activity

No new activity (FEMA HQ)

Preliminary Damage Assessments

No new activity (FEMA HQ)

Disaster Declaration Activity

No new activity (FEMA HQ)

Last Modified: Thursday, 04-Jun-2009 16:51:33 EDT