ACUS11 KWNS 150116
SWOMCD
SPC MCD 150116
TXZ000-OKZ000-150215-
MESOSCALE DISCUSSION 1763
NWS STORM PREDICTION CENTER NORMAN OK
0816 PM CDT TUE AUG 14 2012
AREAS AFFECTED...SRN OK...N CNTRL TX
CONCERNING...SEVERE THUNDERSTORM WATCH 579...
VALID 150116Z - 150215Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 579
CONTINUES.
SUMMARY...DMGG WINDS REMAIN POSSIBLE WITH ONGOING THUNDERSTORMS
ACROSS THE WW AREA...PARTICULARLY ACROSS THE SRN MOST
COUNTIES...WHERE THE WW HAS BEEN LOCALLY EXTENDED TO ACCOUNT FOR SWD
PROGRESSING STORMS.
DISCUSSION...00Z FWD SOUNDING APPEARS TO HAVE CAPTURED THE PRESTORM
ENVIRONMENT ACROSS N TX...WITH HIGH-BASED STORMS PREDOMINANTLY
ROOTED ABOVE 700 MB. DESPITE MARGINAL INSTABILITY...FORCING FOR
ASCENT IN ASSOCIATION WITH A PASSING SHORT WAVE ALOFT...AS WELL AS
ADDITIONAL STORMS GENERATING ALONG OUTFLOW BOUNDARIES SHOULD BE
SUFFICIENT FOR NEW GROWTH WITH THE POSSIBILITY OF SUBSEQUENT DMGG
WIND GUSTS AS EVAPORATIVE COOLING AND PRECIPITATION LOADING ENSUE.
TEMPERATURES INVOF THE DFW METRO HAVE BEEN SLOW TO COOL...AND WILL
LIKELY ALLOW DOWNBURST WINDS TO PENETRATE TO THE SURFACE FOR THE
NEXT FEW HOURS AMIDST VERY SLOW BOUNDARY LAYER DESTABILIZATION.
..HURLBUT.. 08/15/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...SHV...TSA...FWD...OUN...SJT...
LAT...LON 33389996 34929998 34349809 34569576 34069515 32929530
32359543 32379647 32549653 32549869 32929858 32959892
33399900 33389996
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