

000 

WWUS20 KWNS 032239

SEL2

SPC WW 032239

ARZ000-LAZ000-MSZ000-040300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 222

NWS STORM PREDICTION CENTER NORMAN OK

540 PM CDT THU MAY 3 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST ARKANSAS

       EXTREME NORTHEAST LOUISIANA

       WEST-CENTRAL AND NORTHWEST MISSISSIPPI



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 540 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF OXFORD

MISSISSIPPI TO 70 MILES SOUTH OF GREENVILLE MISSISSIPPI.  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...CONTINUE...WW 218...WW 219...WW

220...WW 221...



DISCUSSION...WELL-ORGANIZED MCS CONTINUES TO EVOLVE ACROSS SERN AR

AND NERN LA ALONG SERN PERIPHERY OF EARLY DAY MCS.  DOWNSTREAM AIR

MASS HAS BECOME UNSTABLE WITH MLCAPES OF 1000-1500 J/KG.  UPSTREAM

VWP FROM SHV SHOWED 40-50 KT FLOW IN THE MID-LEVELS...INDICATIVE OF

A POTENTIAL FOR DAMAGING WIND GUSTS AS THE MCS MOVES ENEWD INTO THE

REMAINDER OF SOUTHEAST AR AND WESTERN/NORTHWESTERN MS.  TORNADOES

WILL REMAIN POSSIBLE...ESPECIALLY ASSOCIATED WITH THE MATURE BOW

ECHOES.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24040.





...RACY/CORFIDI

