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Mesoscale Discussion 1236 |
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MESOSCALE DISCUSSION 1236
NWS STORM PREDICTION CENTER NORMAN OK
0557 PM CDT WED JUN 15 2011
AREAS AFFECTED...WRN KS
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 152257Z - 160100Z
AN ISOLATED SEVERE THREAT MAY PERSIST FOR THE NEXT FEW HOURS ACROSS
PORTIONS OF W-CNTRL/NWRN KS. THE PROBABILITY OF A SEVERE TSTM WATCH
ISSUANCE BY 01Z IS 20 PERCENT.
AS OF 2250Z...A FEW DISCRETE CELLS WERE LOCATED FROM THOMAS TO
WICHITA COUNTIES. THE CELL ALONG THE LOGAN/WICHITA COUNTY BORDER
APPEARS TO HAVE ATTAINED SUPERCELL CHARACTERISTICS...SUPPORTED BY
RATHER VEERED LOW/MID-LEVEL WINDS SAMPLED IN AREA VWP/PROFILER DATA
AND RESULTANT EFFECTIVE SHEAR AROUND 40 KT. THIS WILL AID IN AN
ISOLATED SEVERE HAIL THREAT DESPITE MODEST BUOYANCY WITH SURFACE DEW
POINTS ONLY IN THE MIDDLE 40S TO NEAR 50. THE 40 TO 50 DEG F SURFACE
DEW POINT DEPRESSIONS CONTRIBUTING TO DCAPE VALUES OF 1000 TO 1500
J/KG WILL BE SUPPORTIVE OF LOCALIZED STRONG TO SEVERE WIND GUSTS AS
WELL.
..GRAMS.. 06/15/2011
ATTN...WFO...GID...DDC...GLD...
LAT...LON 39789969 39169957 38279993 37890030 37830147 38230169
39710091 39940069 39980035 39940010 39789969
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