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000 

WWUS20 KWNS 150433

SEL4

SPC WW 150433

ARZ000-MOZ000-151100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 114

NWS STORM PREDICTION CENTER NORMAN OK

1125 PM CDT FRI MAR 14 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL ARKANSAS

       FAR SOUTHERN MISSOURI



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1125 PM

UNTIL 600 AM 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 85

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES SOUTH OF

FAYETTEVILLE ARKANSAS TO 35 MILES SOUTH OF JONESBORO ARKANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 111...WW 112...WW 113...



DISCUSSION...NE OK BOW MCS EXPECTED TO CONTINUE GENERALLY ESE AT

40-45 KTS.  SYSTEM IS IN EXIT REGION OF 75+ KT MID LEVEL JET STREAK.

 STRENGTHENING WIND FIELD/UVV AND ELY NEAR-SFC FLOW DOWNSTREAM

ACROSS AR SUGGEST POTENTIAL FOR ADDITIONAL DEVELOPMENT ON BOTH THE N

AND S ENDS OF SYSTEM.  SUBSTANTIAL SUB-CLOUD DRY LAYER IS PRESENT

OVER REGION TO FOSTER STRONG SFC WINDS.  IN ADDITION...ELY LOW-LEVEL

FLOW WILL ENHANCE 0-1 KM SRH.  THUS...ANY SEMI-DISCRETE STORMS

WITHIN THE BOW COULD ALSO POSE AN ISOLATED TORNADO

THREAT...ESPECIALLY LATER TONIGHT OVER CNTRL AR.



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 400. MEAN STORM

MOTION VECTOR 28040.





...CORFIDI

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