[MCD] SWOMCD

Thu Dec 15 18:22:43 UTC 2005

ACUS11 KWNS 151820
SWOMCD
SPC MCD 151819 
GAZ000-FLZ000-151915-

MESOSCALE DISCUSSION 2571
NWS STORM PREDICTION CENTER NORMAN OK
1219 PM CST THU DEC 15 2005

AREAS AFFECTED...ERN FL PANHANDLE AND FAR SRN GA

CONCERNING...TORNADO WATCH 897...

VALID 151819Z - 151915Z

TORNADO/DAMAGING WIND THREATS EXPECTED TO CONTINUE THROUGH 19-21Z...
PRIMARILY ALONG THE COASTAL AREAS OF VALID PART OF WW 897. 
THUS...ERN PARTS OF WW /TAYLOR...LAFAYETTE AND DIXIE COUNTIES/ MAY
NEED TO BE LOCALLY EXTENDED FOR 1-2 HOURS.

REGIONAL RADARS/LIGHTNING DATA INDICATED STRONGEST ACTIVITY WAS
LOCATED FROM SE OF TLH OVER ERN LEON/WAKULLA COUNTIES AND SWD
OFFSHORE OVER THE NERN GULF OF MEXICO. STRONG SHEAR COUPLETS WERE
ASSOCIATED WITH OFFSHORE DISCRETE STORMS EXTENDING FROM 50 E AAF TO
60 SSE AAF.  AIR MASS DOWNSTREAM OVER THE FL BIG BEND REGION HAS
BEEN SLOWLY MODIFYING WITH SURFACE DEWPOINTS INTO THE MID-UPPER 50S.
CLOUDINESS ASSOCIATED WITH BROKEN LINE OF STORMS SPREADING
DOWNSTREAM ACROSS ERN PARTS OF WW 897 AND THE REST OF NRN FL/SRN GA
IS LIMITING OVERALL SURFACE HEATING/DESTABILIZATION.  THUS...GIVEN
MORE STABLE AIR MASS INLAND OVER NRN FL...NEW WW IS NOT WARRANTED. 
HOWEVER...SERN PART OF WW MAY NEED TO BE LOCALLY EXTENDED AS
STRONGER OFFSHORE STORMS POSE A THREAT TO THESE COUNTIES BETWEEN
19-21Z.

..PETERS.. 12/15/2005

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

ATTN...WFO...TBW...JAX...TAE...

29458482 29918453 31028410 31038258 29378297 29038348 

WWWW