

531 

WWUS20 KWNS 112343

SEL2

SPC WW 112343

ARZ000-LAZ000-MSZ000-120700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 72

NWS STORM PREDICTION CENTER NORMAN OK

645 PM CDT SUN MAR 11 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST ARKANSAS

       CENTRAL AND NORTHEAST LOUISIANA

       WESTERN MISSISSIPPI



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 645 PM UNTIL

200 AM CDT.



TORNADOES...HAIL TO 0.5 INCH 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 85 MILES NORTHEAST OF MONROE

LOUISIANA TO 55 MILES SOUTHEAST OF FORT POLK LOUISIANA.  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 71...



DISCUSSION...CONVECTIVE COMPLEX WITH EMBEDDED LEWP STRUCTURES IS

EXPECTED TO CONTINUE EWD TOWARD THE MS RIVER THIS EVENING WITHIN

AMBIENT ENVIRONMENT CHARACTERIZED BY MARGINAL INSTABILITY BUT RATHER

STRONG LOW AND DEEP-LAYER SHEAR.  AS SUCH...EXPECT THE RISK FOR

LOCALLY DAMAGING WINDS AND PERHAPS A COUPLE OF TORNADOES TO EXIST

WITH ANY MORE PERSISTENT/ORGANIZED STORM STRUCTURES.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 22030.





...MEAD

