WATCHES: Tornado Watch Number 156

WWUS20 KWNS 032253
SEL6
SPC WW 032253
ARZ000-OKZ000-TXZ000-040500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 156
NWS STORM PREDICTION CENTER NORMAN OK
555 PM CDT THU APR 3 2008

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

SOUTHWEST ARKANSAS
FAR SOUTHEAST OKLAHOMA
NORTH CENTRAL AND NORTHEAST TEXAS

EFFECTIVE THIS THURSDAY AFTERNOON FROM 555 PM UNTIL MIDNIGHT CDT.

TORNADOES...HAIL TO 2.5 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 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTH SOUTHWEST OF
PARIS TEXAS TO 50 MILES WEST NORTHWEST OF DE QUEEN ARKANSAS. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).

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 153...WW 154...WW 155...

DISCUSSION...SUPERCELLS WILL LIKELY CONTINUE DEVELOPING AND MOVING
ENEWD AHEAD OF SURFACE COLD FRONT EXPECTED TO MOVE SWD ACROSS THE
RED RIVER LATER THIS EVENING/EARLY FRIDAY MORNING...AS SSWLY LLJ
INCREASES. INITIAL DEVELOPMENT MAY BE SLIGHTLY ELEVATED WITH
PRIMARY THREAT OF LARGE HAIL. HOWEVER...LOW LEVEL SHEAR WILL
STRENGTHEN WITH TIME THIS EVENING AND WOULD POSE ADDITIONAL ISOLATED
TORNADO/DAMAGING WIND THREAT WITH ANY STORM ROOTING NEAR THE
SURFACE.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 26030.

..EVANS

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