SWOMCD
SPC MCD 121736
FLZ000-GAZ000-ALZ000-121830-
MESOSCALE DISCUSSION 1112
NWS STORM PREDICTION CENTER NORMAN OK
1236 PM CDT TUE JUN 12 2007
AREAS AFFECTED...SWRN GA/FL PANHANDLE INTO PARTS OF NWRN FL
CONCERNING...SEVERE THUNDERSTORM WATCH 384...
VALID 121736Z - 121830Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 384
CONTINUES.
WW MAY BE NEEDED THIS AFTERNOON ACROSS PARTS OF SWRN GA INTO THE FL
PANHANDLE AND NWRN FL.
CONVECTIVE OUTFLOW BOUNDARY WITH TSTM COMPLEX MOVING SWD ACROSS
NRN/CENTRAL FL EXTENDED FROM 30 SE DAB WWD TO 35 WSW OCF...WITH THIS
PART OF THE BOUNDARY AND PORTIONS LOCATED JUST OFFSHORE IN THE NERN
GULF CONTINUING TO PROGRESS SWD INTO WW 385. MEANWHILE...WRN EXTENT
OF THIS BOUNDARY WHICH EXTENDED INTO THE FL PANHANDLE WAS STATIONARY
AND ALSO COINCIDENT WITH SEA BREEZE ALONG THE SOUTH CENTRAL FL
PANHANDLE FROM FRANKLIN TO BAY COUNTIES.
AIR MASS SITUATED ALONG/N OF THE WRN EXTENT OF THE OUTFLOW BOUNDARY
IN THE FL PANHANDLE AND S OF BAND OF CONVECTIVE CLOUDS FROM SERN AL
THROUGH SWRN GA TO NRN FL HAS BECOME MODERATELY UNSTABLE /MLCAPE
1500-2000 J/KG/ GIVEN STRONG SURFACE HEATING. OBJECTIVE ANALYSES
INDICATED 30-40 KT OF EFFECTIVE BULK SHEAR VALUES ACROSS THIS
REGION. ALTHOUGH A FEW ORGANIZED SEVERE STORMS APPEAR POSSIBLE
ALONG THE SEA BREEZE IN THE FL PANHANDLE...THERE IS STILL SOME
UNCERTAINTY WITH THE POTENTIAL FOR STRONG CONVECTIVE INITIATION NWD
FROM THE SEA BREEZE...GIVEN LACK FOR ANY OTHER WELL DEFINED SURFACE
BOUNDARY. THUS...WILL CONTINUE TO MONITOR FOR ADDITIONAL CONVECTIVE
DEVELOPMENT AND ATTENDANT NEED FOR WW.
.PETERS.. 06/12/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TBW...JAX...TAE...MOB...
29718505 30468666 30758657 31328563 31768483 31538426
30988332 30108246 29288266 29038304 29268408
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