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Mesoscale Discussion 743 |
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MESOSCALE DISCUSSION 0743
NWS STORM PREDICTION CENTER NORMAN OK
0331 PM CDT SUN MAY 24 2015
AREAS AFFECTED...MUCH OF AR...PORTIONS OF NERN LA
CONCERNING...TORNADO WATCH 202...
VALID 242031Z - 242200Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 202 CONTINUES.
SUMMARY...THE THREAT FOR DAMAGING WINDS AND A TORNADO OR TWO
CONTINUES WITHIN VALID PORTIONS OF THE WATCH AREA.
DISCUSSION...LINEAR CONVECTIVE SYSTEM EXTENDING FROM W-CENTRAL AR
SEWD INTO NERN LA CONTINUES TO MOVE NEWD WITH SEVERAL SVR TSTMS
ALONG THE LINE. IN ADDITION...SEVERAL DISCRETE CELLS HAVE DEVELOPED
IN ADVANCE OF THIS LINE. LARGE-SCALE ASCENT ASSOCIATED WITH AN MCV
MOVING NEWD ACROSS THE WATCH AREA WILL PROVIDE A FAVORABLE
BACKGROUND ENVIRONMENT...AND KINEMATIC AND THERMODYNAMIC FIELDS WILL
ALSO BE SUPPORTIVE OF DAMAGING WINDS AND LOW-LEVEL ROTATION WITH
BOTH DISCRETE CELLS AND QLCS CIRCULATIONS. EFFECTIVE BULK SHEAR OF
35-45 KTS REMAINS IN PLACE WITHIN THE WATCH AREA AND 0-1 KM SRH OF
100 M2/S2 WAS RECENTLY SAMPLED BY THE KLZK VWP.
..BUNTING.. 05/24/2015
ATTN...WFO...JAN...LZK...SHV...TSA...
LAT...LON 32699185 32789234 33849305 34779371 35759360 36399344
36469297 36379147 35359137 33389163 32699185
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