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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 80

NWS STORM PREDICTION CENTER NORMAN OK

1255 PM CDT FRI APR 23 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF CENTRAL AND EASTERN ARKANSAS

       LARGE PART OF MISSISSIPPI

       PARTS OF WESTERN TENNESSEE



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL

800 PM 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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES EAST SOUTHEAST OF MC

COMB MISSISSIPPI TO 30 MILES WEST NORTHWEST OF JONESBORO

ARKANSAS.  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 79...



DISCUSSION...STRONG/SEVERE THUNDERSTORMS ACROSS LA/SRN AR WILL

CONTINUE E/NEWD INTO AN INCREASINGLY FAVORABLE ENVIRONMENT FOR

SUPERCELLS AND TORNADO DEVELOPMENT.  AIR MASS CONTINUES TO

DESTABILIZE  AS THE LOW LEVEL JET INCREASES TO 40KT ACROSS THE

WATCH.  SUPERCELLS INCLUDING TORNADO'S AND LARGE HAIL WILL

MOVE/DEVELOP NEWD ACROSS THE LOWER MS VALLEY THIS AFTERNOON AND

EVENING.



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

550. MEAN STORM MOTION VECTOR 24035.





...HALES

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