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583 

WWUS20 KWNS 310036

SEL6

SPC WW 310036

ARZ000-KSZ000-MOZ000-OKZ000-310900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 326

NWS STORM PREDICTION CENTER NORMAN OK

730 PM CDT WED MAY 30 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST ARKANSAS

       SOUTHEAST KANSAS

       SOUTHWEST MISSOURI

       NORTHEAST AND EAST CENTRAL OKLAHOMA



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 730 PM

UNTIL 400 AM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75

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 45 MILES WEST

NORTHWEST OF BARTLESVILLE OKLAHOMA TO 30 MILES EAST OF

FAYETTEVILLE ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 322...WW 323...WW

324...WW 325...



DISCUSSION...TSTM COMPLEX NOW EVOLVING OVER S CNTRL KS EXPECTED TO

MOVE/DEVELOP BOTH ESE TOWARD THE KS/MO/OK BORDER AREA...AND

EVENTUALLY SSEWD INTO ERN OK LATER TNGT AS LLJ STRENGTHENS

DOWNSTREAM FROM APPROACHING UPR LVL IMPULSES.  LOW LVL BUOYANCY

PATTERN REMAINS SOMEWHAT COMPLEX...SHOWING CONTINUING IMPRINT LAST

EVE'S MCS IN CNTRL OK...AND PRESENCE OF SYNOPTIC STNRY FRONT OVER

CNTRL/SRN MO.  AT ANY RATE...SUFFICIENT SFC AND/OR SLIGHTLY ELEVATED

INSTABILITY SHOULD REMAIN PRESENT FOR SUSTAINED STORMS...ESPECIALLY

ALONG EXISTING OUTFLOW BOUNDARIES.  OTHER...PERHAPS

ELEVATED...STORMS MAY MOVE INTO ERN OK FROM THE CNTRL PART OF THE

STATE AS UPR DIFFLUENCE INCREASES ATOP MOISTENING/STRENGTHENING LLJ.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 31030.





...CORFIDI

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