SWOMCD
SPC MCD 181011
GAZ000-FLZ000-181115-
MESOSCALE DISCUSSION 0268
NWS STORM PREDICTION CENTER NORMAN OK
0411 AM CST MON FEB 18 2008
AREAS AFFECTED...ERN FL PANHANDLE INTO NRN FL AND SRN GA
CONCERNING...TORNADO WATCH 67...
VALID 181011Z - 181115Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 67 CONTINUES.
REGIONAL RADARS INDICATED STRONGEST TSTM BANDS WITH LINEAR STRUCTURE
OVER THE ERN FL PANHANDLE INTO SWRN GA. A MORE PERSISTENT LINE
EXTENDED FROM TAYLOR COUNTY FL SWWD INTO THE NERN GULF...WHILE A
SECOND LINE HAD INCREASED IN INTENSITY SINCE 0930Z FROM BROOKS
COUNTY GA TO WAKULLA COUNTY FL. OBJECTIVE ANALYSES SHOWED THE AIR
MASS ACROSS WW 67 CONTINUED TO SLOWLY DESTABILIZE WITH MUCAPE VALUES
OF 500-1000 J/KG EXTENDING FROM SWRN GA TO ERN FL PANHANDLE.
EFFECTIVE BULK SHEAR /45-55 KT/ AND SRH VALUES /200-275 M2/S2/
REMAIN SUPPORTIVE FOR ORGANIZED STORMS WITH AN ATTENDANT THREAT FOR
TORNADOES AND DAMAGING WINDS.
IR SATELLITE IMAGERY INDICATED AN OVERALL WARMING OF CLOUD TOP
TEMPERATURES OVER SRN GA TO NRN FL. HOWEVER...EXISTING
THERMODYNAMIC AND SHEAR VALUES SUGGEST THE POTENTIAL FOR AN EPISODIC
SEVERE THREAT WITHIN THIS WATCH. IN ADDITION...RECENT TSTM
DEVELOPMENT OVER THE NERN GULF ALONG TRAILING PORTION OF COLD FRONT
COMBINED WITH AFOREMENTIONED THERMODYNAMIC/KINEMATIC FIELDS SUGGESTS
A CONTINUED POTENTIAL FOR SEVERE STORMS AS THIS ACTIVITY APPROACHES
THE COAST.
.PETERS.. 02/18/2008
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CHS...TBW...JAX...FFC...TAE...
29518569 30828437 31778344 31868229 31388131 30788149
30218206 29588272 29128335 29108490
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