ZCZC SPCSWOMCD ALL
ACUS11 KWNS 182037 
SPC MCD 182037 
TXZ000-OKZ000-KSZ000-COZ000-NMZ000-182230-

MESOSCALE DISCUSSION 1062
NWS STORM PREDICTION CENTER NORMAN OK
0337 PM CDT THU JUN 18 2015

AREAS AFFECTED...PORTIONS OF THE OK/TX PANHANDLES...NERN NM...FAR
SWRN KS...AND FAR SERN CO

CONCERNING...SEVERE THUNDERSTORM WATCH 310...

VALID 182037Z - 182230Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 310
CONTINUES.

SUMMARY...THE THREAT FOR A FEW STRONG WIND GUSTS AND/OR LARGE HAIL
REPORTS PERSISTS...WITH THE GREATEST POTENTIAL LIKELY ACROSS THE WRN
HALF OF THE WATCH.

DISCUSSION...A S/SWWD-PROGRESSING GRAVITY WAVE APPEARS TO HAVE AIDED
CONVECTIVE INITIATION OVER PORTIONS OF THE OK/TX PANHANDLES THIS
AFTERNOON. ALTHOUGH CELLS HAVE GENERALLY LACKED SUSTAINED/ORGANIZED
CORES ALOFT /LIKELY DUE TO SUB-OPTIMAL SHEAR AND LACK OF STRONGER
FORCING FOR ASCENT/...AMPLE MID-LEVEL BUOYANCY AND DEEPLY MIXED LOW
LEVELS SHOULD CONTINUE TO OFFER A THREAT FOR A FEW LARGE HAIL
REPORTS AND/OR STRONG WIND GUSTS WITH MORE ROBUST UPDRAFTS.
THUS...THE SEVERE THREAT CONTINUES ACROSS THE WATCH...ESPECIALLY THE
APPROXIMATE WRN HALF...WHERE BETTER LOW-LEVEL CONVERGENCE AND
SOMEWHAT MORE FAVORABLE EFFECTIVE SHEAR EXIST. ADDITIONALLY...THE
WIND THREAT WILL BE ENHANCED WHERE ANY COLD-POOL MERGERS FAVOR
UPSCALE GROWTH LATE THIS AFTERNOON INTO THIS EVENING.

..PICCA.. 06/18/2015

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...DDC...LUB...AMA...PUB...ABQ...

LAT...LON   34330311 34430366 35500387 37040381 37460304 37560237
            37360173 36270071 35470052 34920086 34280191 34270266
            34330311 

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