SPC Severe Thunderstorm Watch 326

WW 326 SEVERE TSTM AR KS MO OK 310030Z – 310900Z

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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