Wednesday, December 2, 2009

MESO: Mesoscale Discussion 2184

ACUS11 KWNS 021103
SWOMCD
SPC MCD 021102
FLZ000-GAZ000-ALZ000-021200-

MESOSCALE DISCUSSION 2184
NWS STORM PREDICTION CENTER NORMAN OK
0502 AM CST WED DEC 02 2009

AREAS AFFECTED...SRN AL...FL PANHANDLE...SWRN GA

CONCERNING...TORNADO WATCH 787...

VALID 021102Z - 021200Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 787 CONTINUES.

TORNADO THREAT APPEARS TO BE INCREASING ALONG THE GULF COAST
IMMEDIATELY AHEAD OF ADVANCING SQUALL LINE. MARITIME TROPICAL
AIRMASS IS POSITIONED JUST OFFSHORE BUT IS GRADUALLY LIFTING NWD AND
MAY SOON SPREAD INLAND ALLOWING UPPER 60S TO NEAR 70F DEW POINTS TO
RETURN ACROSS SRN PORTIONS OF TORNADO WATCH. LATEST RADAR DATA
SUPPORTS THIS AIRMASS TRANSITION WITH MORE DISCRETE SUPERCELL
STRUCTURES NOTED OVER THE NRN GULF OF MEXICO. ONE STRONG SUPERCELL
IS LOCATED ROUGHLY 35 MI SW OF PFN...LIFTING NEWD AT 30-35KT. GIVEN
THIS SPEED A POTENTIALLY TORNADIC STORM COULD MOVE ONSHORE IN BAY
COUNTY AROUND 12Z. NEEDLESS TO SAY...TORNADOIC THREAT WILL ONLY
INCREASE DURING THE MORNING AS INSTABILITY INCREASES WITHIN
IMPRESSIVE LOW LEVEL-MID LEVEL SHEAR ENVIRONMENT.

..DARROW.. 12/02/2009

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

ATTN...WFO...FFC...TAE...BMX...MOB...

LAT...LON 29908830 31128841 31168796 31328778 31268757 31768691
31558685 31638545 31988506 31928394 30158408 29838358
29738407 29258497 29388552 29778578 30068644 29858801
29908830

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