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972 

WWUS20 KWNS 200031

SEL1

SPC WW 200031

ARZ000-OKZ000-200700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 191

NWS STORM PREDICTION CENTER NORMAN OK

735 PM CDT WED MAY 19 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN ARKANSAS

       FAR EASTERN OKLAHOMA



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 735 PM

UNTIL 200 AM CDT.



TORNADOES...HAIL TO 2 INCHES 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 35 MILES NORTH NORTHEAST OF

FAYETTEVILLE ARKANSAS TO 25 MILES EAST SOUTHEAST OF DE QUEEN

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 190...



DISCUSSION...SUPERCELL THUNDERSTORMS OVER CENTRAL/EASTERN OK WILL

CONTINUE TO DEVELOP AND SPREAD EASTWARD INTO WESTERN AR THIS

EVENING.  STRONG LOW LEVEL VERTICAL SHEAR AND SUFFICIENT INSTABILITY

WILL POSE A RISK OF TORNADOES.  LATER TONIGHT...STORMS OVER OK MAY

ORGANIZE INTO AN MCS AND SPREAD ACROSS THIS REGION AS WELL WITH THE

RISK OF DAMAGING WINDS AND HAIL.



AVIATION...TORNADOES AND 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 26025.





...HART

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