

248 

WWUS20 KWNS 021655

SEL4

SPC WW 021655

ALZ000-TNZ000-022200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 134

NWS STORM PREDICTION CENTER NORMAN OK

1200 PM CDT SUN MAY 2 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST ALABAMA

       MIDDLE TENNESSEE



EFFECTIVE THIS SUNDAY AFTERNOON FROM NOON UNTIL 500 PM CDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH

NORTHWEST OF CROSSVILLE TENNESSEE TO 30 MILES SOUTHEAST OF

COLUMBUS MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 131...WW 133...



DISCUSSION...LINE OF INTENSE THUNDERSTORMS OVER NORTHEAST MS AND

MIDDLE TN WILL CONTINUE TO TRACK NORTHEASTWARD THROUGH THE

AFTERNOON.  PRESENT INDICATIONS ARE THAT VERY STRONG WINDS JUST

ABOVE SURFACE...COMBINED WITH LINEAR ORGANIZATION OF ONGOING

CONVECTION WILL PROMOTE BOW/LEWP STRUCTURES CAPABLE OF DAMAGING

WINDS AND HAIL.  AREA WILL BE MONITORED FOR INCREASING TORNADO

THREAT AS WELL.



AVIATION...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 23030.





...HART

