SWOMCD
SPC MCD 211909
FLZ000-GAZ000-212015-
MESOSCALE DISCUSSION 0043
NWS STORM PREDICTION CENTER NORMAN OK
0109 PM CST THU JAN 21 2010
AREAS AFFECTED...NRN FL...SERN GA
CONCERNING...TORNADO WATCH 5...
VALID 211909Z - 212015Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 5 CONTINUES.
WEAK SFC LOW IS EVIDENT JUST SW OF JAX...COINCIDENT WITH STRONGEST
UPDRAFTS ALONG E-W SQUALL LINE. LATEST RADAR DATA SUGGESTS A
COMPLEX SUPERCELL STRUCTURE...POSSIBLY PRODUCING A TORNADO...OVER
CLAY COUNTY WILL SOON MOVE ACROSS ST. JOHNS COUNTY AND OFFSHORE AS
MESO LOW REDEVELOPS OVER THE WARMER WATERS. AS STRONGER FORCING
TRANSLATES DOWNSTREAM IT APPEARS THE GREATEST THREAT WILL BE DUE TO
VERY HEAVY RAIN FROM TRAINING UPDRAFTS ORIGINATING OFF THE NERN GULF
OF MEXICO.
..DARROW.. 01/21/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TBW...JAX...TAE...
LAT...LON 29578509 30208337 30588104 29468081 29328203 29108439
29578509
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