Tuesday, October 27, 2009

MESO: Mesoscale Discussion 2141

ACUS11 KWNS 271524
SWOMCD
SPC MCD 271524
GAZ000-FLZ000-ALZ000-271730-

MESOSCALE DISCUSSION 2141
NWS STORM PREDICTION CENTER NORMAN OK
1024 AM CDT TUE OCT 27 2009

AREAS AFFECTED...CENTRAL FL PANHANDLE/SWRN GA AND VICINITY

CONCERNING...TORNADO WATCH 776...

VALID 271524Z - 271730Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 776 CONTINUES.

SURFACE ANALYSIS SHOWS A WEAK WARM FRONT LYING FROM EXTREME SERN GA
WSWWD TO THE PANAMA CITY FL VICINITY...WITH WIDESPREAD SHOWERS AND A
FEW EMBEDDED THUNDERSTORMS CONTINUING ACROSS THE ERN GULF. A FEW
OFFSHORE STORMS HAVE SHOWN ROTATION OVER THE PAST COUPLE OF
HOURS...THOUGH ROTATION HAS THUS FAR WEAKENED AS STORMS SHIFT NWD
ACROSS THE SURFACE BOUNDARY AND INTO THE COOLER LOW-LEVEL ONSHORE
AIRMASS.

AREA VAD WIND PROFILES CONTINUE TO REVEAL SUBSTANTIAL LOW-LEVEL
VEERING/SHEAR -- PARTICULARLY JUST N OF THE SURFACE BOUNDARY WHERE
0-1 KM VALUES REMAIN IN EXCESS OF 30 KT. WHILE INSTABILITY IS
MARGINAL -- PER MORNING RAOBS AND OBSERVED LACK OF
LIGHTNING...DEGREE OF SHEAR WILL CONTINUE TO SUPPORT LOW-LEVEL
ROTATION...AND ASSOCIATED/LOW-PROBABILITY THREAT FOR AN ONSHORE
TORNADO.

..GOSS.. 10/27/2009

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

ATTN...WFO...TAE...

LAT...LON 29788674 30438634 30808591 31108475 31078373 30658369
29698439 29788674

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.

No comments: