

000 

WWUS20 KWNS 021853

SEL1

SPC WW 021853

ARZ000-MOZ000-MSZ000-TNZ000-030100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 251

NWS STORM PREDICTION CENTER NORMAN OK

155 PM CDT FRI MAY 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN ARKANSAS

       MISSOURI BOOTHEEL

       NORTHERN MISSISSIPPI

       WESTERN TENNESSEE



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 155 PM UNTIL 800

PM CDT.



TORNADOES...HAIL TO 1.5 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES NORTHEAST OF

DYERSBURG TENNESSEE TO 35 MILES SOUTHWEST OF GREENVILLE

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 249...WW 250...



DISCUSSION...SEVERAL SEVERE/SUPERCELL THUNDERSTORMS ARE AFFECTING

EASTERN AR...AND WILL MOVE ACROSS WATCH AREA IN THE NEXT SEVERAL

HOURS.  VERTICAL WIND SHEAR PROFILES ARE VERY FAVORABLE FOR

TORNADOES...SOME STRONG...AS WELL AS DAMAGING WINDS.  STRONG

INSTABILITY PARAMETERS ALSO FAVOR THE RISK OF LARGE HAIL IN STRONGER

CELLS.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24035.





...HART

