Tuesday, May 21, 2013

MESO: Mesoscale Discussion 0756

ACUS11 KWNS 212018
SWOMCD
SPC MCD 212018
LAZ000-ARZ000-TXZ000-OKZ000-212145-

MESOSCALE DISCUSSION 0756
NWS STORM PREDICTION CENTER NORMAN OK
0318 PM CDT TUE MAY 21 2013

AREAS AFFECTED...CNTRL INTO THE ARKLATEX

CONCERNING...TORNADO WATCH 201...205...

VALID 212018Z - 212145Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 201...205...CONTINUES.

SUMMARY...A LINE OF SEVERE STORMS SHOULD CONTINUE TO BECOME BETTER
ORGANIZED WITH WIDESPREAD DAMAGING WINDS LIKELY ACROSS NERN TX.
OTHER STORMS SHOULD INCREASE IN COVERAGE FARTHER S ALONG OR JUST
AHEAD OF THE COLD FRONT...WITH LARGE HAIL AND DAMAGING WINDS AND
PERHAPS AN ISOLATED TORNADO.

DISCUSSION...SEVERE STORMS CURRENTLY EXTEND FROM NEAR THE RED RIVER
SWWD TOWARD THE DALLAS AREA...WITH A GENERAL UPSWING IN INTENSITY
NOTED. WITH AMPLE INSTABILITY AHEAD OF THESE STORMS...THIS TREND
SHOULD CONTINUE. GIVEN LINEAR STORM MODE...DAMAGING WINDS ARE LIKELY

TO THE S...SUPERCELLS WERE RAPIDLY DEVELOPING NEAR THE SRN BORDER OF
TORNADO WATCH 201...AND SHOULD CONTINUE INTO THE WATCH. THESE CELLS
WILL HAVE A DISTINCT LARGE HAIL THREAT...AND COULD PRODUCE A TORNADO
AS WELL BEFORE THE COLD FRONT OVERTAKES THEM. IF A SWD TREND IN
DEVELOPMENT PERSISTS...NRN PORTIONS OF THE HOUSTON CWA MAY NEED TO
BE INCLUDED IN A WATCH.

..JEWELL.. 05/21/2013

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

ATTN...WFO...JAN...LZK...SHV...TSA...HGX...FWD...OUN...EWX...
SJT...

LAT...LON 31569202 31449527 31779528 30360002 30890004 31129942
31559846 32179746 32709688 33239668 34179658 34549521
34219522 34329201 31569202

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