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441 

WWUS20 KWNS 080223

SEL2

SPC WW 080223

ARZ000-KYZ000-MOZ000-TNZ000-080900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 742

NWS STORM PREDICTION CENTER NORMAN OK

920 PM CDT SUN AUG 7 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST ARKANSAS

       WESTERN KENTUCKY

       SOUTHEAST MISSOURI AND THE MISSOURI BOOTHEEL

       WESTERN TENNESSEE



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 920 PM UNTIL

400 AM CDT.



HAIL TO 1 INCH 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 100

STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH

NORTHEAST OF PADUCAH KENTUCKY TO 25 MILES EAST SOUTHEAST OF

JONESBORO ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 736...WW 739...WW

740...WW 741...



DISCUSSION...SE MCS CONTAINS A WELL-DEFINED LEWP ATTM AND SHOULD

MOVE DEVELOP FARTHER ESE THROUGH LATE TNGT.  CIN WILL INCREASE WITH

TIME.  BUT VERY MOIST AIR / HIGH PWS OVER THE LWR TERRAIN OF THE MS

RVR VLY...MODEST WNWLY MID LVL FLOW...AND STRENGTH OF EXISTING MCS

COLD POOL SUGGEST THE POTENTIAL FOR ADDITIONAL DMGG WIND GUSTS AND

WET MICROBURSTS POSSIBLY AS FAR ESE AS WRN KY/TN.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION

VECTOR 29030.





...CORFIDI

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