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881 

WWUS20 KWNS 131506

SEL2

SPC WW 131506

ARZ000-MOZ000-MSZ000-TNZ000-132100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 472

NWS STORM PREDICTION CENTER NORMAN OK

1005 AM CDT MON JUN 13 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST AND EAST CENTRAL ARKANSAS

       SOUTH CENTRAL AND SOUTHEAST MISSOURI

       NORTH CENTRAL AND NORTHWEST MISSISSIPPI

       WESTERN TENNESSEE



EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 1005 AM UNTIL

400 PM CDT.



HAIL TO 2 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 115

STATUTE MILES NORTH AND SOUTH OF A LINE FROM FLIPPIN ARKANSAS TO

45 MILES SOUTH SOUTHEAST OF DYERSBURG TENNESSEE.  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 471...



DISCUSSION...CLUSTER OF ELEVATED STORMS IN MO...FED BY WAA ON THE

NOSE OF A 40-50 KT SWLY LLJ...WILL PERSIST AND SPREAD SSEWD TOWARD

NE AR WITH A CONTINUED RISK FOR ISOLATED LARGE HAIL.  LATER THIS

MORNING INTO THIS AFTERNOON...DESTABILIZATION AND WEAKENING

CONVECTIVE INHIBITION IN THE WARM SECTOR WILL ALLOW SURFACE-BASED

STORM DEVELOPMENT...EITHER AS AN EXTENSION OF THE ELEVATED MORNING

STORMS...OR NEW DEVELOPMENT ON THE FRONT FROM WRN TN INTO NE AR.

THE SURFACE-BASED STORMS SHOULD THEN EVOLVE INTO A SSEWD MOVING

CLUSTER WITH THE POTENTIAL FOR DAMAGING WINDS AND LARGE HAIL.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 32030.





...THOMPSON

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