

201 

WWUS20 KWNS 311428

SEL1

SPC WW 311428

ARZ000-LAZ000-TXZ000-010000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 71

NWS STORM PREDICTION CENTER NORMAN OK

920 AM CDT SUN MAR 31 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN ARKANSAS

       NORTHERN AND CENTRAL LOUISIANA

       EAST TEXAS



EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 920 AM UNTIL 700

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 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 5 MILES WEST

NORTHWEST OF LONGVIEW TEXAS TO 55 MILES NORTH NORTHEAST OF

ALEXANDRIA LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 70...



DISCUSSION...NE TX/SW AR SQLN EXPECTED TO CONTINUE ESE THROUGH THE

REMAINDER OF THE MORNING AND INTO THE AFTN. STORMS MAY STRENGTHEN

DOWNSTREAM INTO NRN LA BY LATE MORNING AS SFC HEATING AND CONTINUED

LOW-LVL MOISTURE TRANSPORT /ALONG 30+ KT WSWLY 1 KM JET/ FURTHER

DESTABILIZE REGION. WITH TIME...PERHAPS AROUND NOON CDT...EXPECT

THAT SUFFICIENT DESTABILIZATION WILL HAVE OCCURRED FARTHER

DOWNSTREAM TO WARRANT ISSUANCE OF A REPLACEMENT WATCH COVERING AREAS

ALONG DIFFUSE W-E WARM FRONT EWD INTO CNTRL MS.



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 450. MEAN STORM

MOTION VECTOR 29035.





...CORFIDI

