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000 

WWUS20 KWNS 032011

SEL4

SPC WW 032011

ARZ000-MOZ000-MSZ000-TNZ000-040300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 114

NWS STORM PREDICTION CENTER NORMAN OK

310 PM CDT TUE APR 3 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN ARKANSAS

       MISSOURI BOOTHEEL

       PARTS OF NORTHERN MISSISSIPPI

       WESTERN TENNESSEE



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 310 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 10 MILES NORTH NORTHWEST OF

FORT SMITH ARKANSAS TO 45 MILES EAST OF JACKSON TENNESSEE.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



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 109...WW 110...WW

111...WW 112...WW 113...



DISCUSSION...AIR MASS NOW VERY UNSTABLE  WITH MLCAPES AOA 2500 J/KG

COUPLED WITH 40-50KT OF DEEP LAYER SHEAR...CONDITIONS ARE FAVORABLE

FOR SUPERCELLS INCLUDING TORNADOES.  SEVERE THUNDERSTORMS ACROSS SRN

MO WILL CONTINUE TO DEVELOP SEWD ACROSS THE WATCH AREA WITH

ACCOMPANYING THREAT OF VERY LARGE HAIL...INCREASING WIND DAMAGE

POTENTIAL ALONG WITH TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 26030.





...HALES

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