New Tornado Watch

This watch extends across North Mississippi to the Alabama border:

URGENT – IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 250
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CDT WED MAY 6 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

SOUTHERN ARKANSAS
NORTHERN MISSISSIPPI
MCCURTAIN COUNTY OKLAHOMA
NORTHEAST TEXAS

EFFECTIVE THIS WEDNESDAY MORNING FROM 1255 AM UNTIL 600 AM CDT.

TORNADOES…HAIL TO 2 INCHES IN DIAMETER…THUNDERSTORM WIND
GUSTS TO 70 MPH…AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF
DE QUEEN ARKANSAS TO 35 MILES EAST SOUTHEAST OF TUPELO
MISSISSIPPI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

REMEMBER…A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION…CONTINUE…WW 248…WW 249…

DISCUSSION…DISCRETE SUPERCELLS ARE PERSISTING AHEAD OF MAIN MCS
EVOLVING OVER AR EARLY THIS MORNING. SHEAR REMAINS VERY STRONG AND
WITH INCREASING SURFACE PRESSURE FALLS INTO SRN AR/NRN MS…SURFACE
WARM FRONT SHOULD LIFT NWD OVERNIGHT. THIS WILL INCREASE THE
POTENTIAL FOR A FEW TORNADOES WITHIN SRN 1/3 OF SVR TSTM WATCH
249…PRIOR TO MAIN POSSIBLY LINEAR MCS PASSAGE LATER THIS MORNING.

AVIATION…TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28035.

…EVANS

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