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000 

WWUS20 KWNS 182223

SEL2

SPC WW 182223

ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-OKZ000-TNZ000-TXZ000-19070

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 132

NWS STORM PREDICTION CENTER NORMAN OK

520 PM CDT TUE MAR 18 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN...CENTRAL...AND EASTERN ARKANSAS

       FAR SOUTHERN ILLINOIS

       FAR SOUTHWEST INDIANA

       WESTERN KENTUCKY

       THE MISSOURI BOOTHEEL

       FAR NORTHWEST MISSISSIPPI

       FAR SOUTHEAST OKLAHOMA

       WEST TENNESSEE

       NORTHEAST TEXAS



EFFECTIVE THIS TUESDAY AFTERNOON AND WEDNESDAY MORNING FROM 520

PM UNTIL 200 AM CDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTHWEST OF TYLER

TEXAS TO 50 MILES NORTH NORTHEAST OF FORT CAMPBELL KENTUCKY.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 130. WATCH NUMBER 130 WILL NOT BE IN EFFECT AFTER

520 PM CDT. CONTINUE...WW 131...



DISCUSSION...EXTENSIVE WSW/ENE-ORIENTED QLCS WITH EMBEDDED

SUPERCELLS EXPECTED TO PERSIST THROUGH EARLY WEDNESDAY ALONG AND N

OF STALLING FRONT.  EJECTION OF SW TX UPR SYSTEM WILL MAINTAIN

FAVORABLE ENVIRONMENT FOR ADDITIONAL SUPERCELLS GIVEN STRENGTH OF

BOTH LOW-LEVEL AND DEEP SHEAR.  WHILE ANA NATURE OF FRONT WILL KEEP

SOME OF THE STORMS SLIGHTLY ELEVATED...INCREASINGLY RICH MOISTURE

INFLOW AND DEGREE OF NEAR-SFC DIRECTIONAL SHEAR SUGGEST CONTINUED

RISK FOR TORNADOES IN ADDITION TO LOCALLY DMGG WIND.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.

MEAN STORM MOTION VECTOR 22040.





...CORFIDI

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