

000 

WWUS20 KWNS 022142

SEL3

SPC WW 022142

ALZ000-MSZ000-TNZ000-030500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 253

NWS STORM PREDICTION CENTER NORMAN OK

445 PM CDT FRI MAY 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PART OF NORTHERN ALABAMA

       PARTS OF CENTRAL AND NORTHEAST MISSISSIPPI

       MUCH OF MIDDLE TENNESSEE



EFFECTIVE THIS FRIDAY AFTERNOON FROM 445 PM UNTIL MIDNIGHT CDT.



TORNADOES...HAIL TO 2 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 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH NORTHEAST OF

NASHVILLE TENNESSEE TO 95 MILES SOUTHWEST OF COLUMBUS

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 251...WW 252...



DISCUSSION...SUPERCELLS CONTINUE TO DEVELOP EWD AHEAD OF STRONG

UPPER TROUGH. WITH VERY FAVORABLE SHEAR AND INSTABILITY...POTENTIAL

WILL CONTINUE ACROSS THE WATCH ARE FOR TORNADOS AND SEVERE

THUNDERSTORMS THROUGH THE EVENING.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24035.





...HALES

