Saturday, May 10, 2008

New Day One Outlook by SPC


11:30 update


Tornado risk

PUBLIC SEVERE WEATHER OUTLOOK 
NWS STORM PREDICTION CENTER NORMAN OK
1145 AM CDT SAT MAY 10 2008

...SIGNIFICANT SEVERE THUNDERSTORMS ARE EXPECTED FROM THE ARKLATEX
AND MID SOUTH REGION EASTWARD ACROSS THE GULF COAST STATES TODAY AND
TONIGHT...

THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
DEVELOPMENT OF A FEW STRONG TORNADOES...WIDESPREAD DAMAGING WINDS
AND VERY LARGE HAIL FROM THE ARKLATEX AND MID SOUTH REGION EASTWARD
ACROSS THE GULF COAST STATES TODAY AND TONIGHT.

THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE

CENTRAL AND NORTHERN ALABAMA
MUCH OF ARKANSAS
PARTS OF NORTHERN AND CENTRAL GEORGIA
FAR SOUTHERN ILLINOIS
WESTERN KENTUCKY
NORTHERN LOUISIANA
SOUTHERN MISSOURI
NORTHERN AND CENTRAL MISSISSIPPI
FAR EASTERN OKLAHOMA
WESTERN AND MIDDLE TENNESSEE
NORTHEASTERN TEXAS

A STRONG UPPER LEVEL TROUGH WILL MOVE EASTWARD ACROSS THE PLAINS
STATES THIS AFTERNOON...EMERGING INTO THE LOWER MISSISSIPPI VALLEY
BY LATE TODAY AND CONTINUING ACROSS THE TENNESSEE VALLEY REGION AND
GULF COAST STATES OVERNIGHT INTO SUNDAY MORNING. A VERY MOIST AND
UNSTABLE AIR MASS IS ALREADY IN PLACE FROM TEXAS EASTWARD ALONG THE
GULF COAST...AND THIS UNSTABLE AIR WILL EXPAND NORTHWARD WITH TIME
AS LOW PRESSURE DEEPENS ACROSS THE MID MISSISSIPPI VALLEY.

WHILE TORNADOES...DAMAGING WIND AND VERY LARGE HAIL WILL BE POSSIBLE
ANYWHERE WITHIN THE MODERATE RISK AREA...THE GREATEST THREAT FOR
STRONG TORNADOES WILL OCCUR THIS AFTERNOON AND EVENING OVER CENTRAL
AND EASTERN ARKANSAS...NORTHERN MISSISSIPPI AND WESTERN TENNESSEE.
IN ADDITION TO THE THREAT OF A FEW TORNADOES...WIDESPREAD DAMAGING
WINDS WILL BE POSSIBLE DURING THE EVENING AND OVERNIGHT HOURS ACROSS
MISSISSIPPI...ALABAMA...AND GEORGIA.

THOSE IN THE THREATENED AREA ARE URGED TO REVIEW SEVERE WEATHER
SAFETY RULES AND TO LISTEN TO RADIO...TELEVISION...AND NOAA WEATHER
RADIO FOR POSSIBLE WATCHES...WARNINGS...AND STATEMENTS LATER TODAY.

..MEAD/JEWELL.. 05/10/2008

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