[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 041825
SWOMCD
SPC MCD 041824 
GAZ000-ALZ000-042000-

MESOSCALE DISCUSSION 2527
NWS STORM PREDICTION CENTER NORMAN OK
1224 PM CST SUN DEC 04 2005

AREAS AFFECTED...AL INTO WRN GA

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 041824Z - 042000Z

THE THREAT OF ISOLATED LARGE HAIL AND DAMAGING WINDS SHOULD INCREASE
ALONG AND SOUTH OF SURFACE FRONT ACROSS THE AREA THIS AFTERNOON. 
TRENDS ARE BEING MONITORED FOR A WW.

SATELLITE IMAGERY AND 18Z SURFACE ANALYSES INDICATE STRONG
TEMPERATURE/HEATING GRADIENT ACROSS CENTRAL AL INTO NRN/CENTRAL GA. 
WELL DEFINED SURFACE FRONT IS EXPECTED TO CONTINUE SHIFTING SLOWLY
SSEWD THROUGH THE DAY...WITH TEMPERATURES APPROACHING 80F TO ITS
SOUTH. REGION REMAINS ALONG NERN EXTENT OF PRIMARY LOW LEVEL
MOISTURE AXIS EXTENDING OUT OF THE LOWER MS RIVER VALLEY WITH
SURFACE DEW POINTS IN THE LOWER 60S F. THIS IS LIMITING AVAILABLE
INSTABILITY WITH CURRENT MLCAPES LESS THAN 1000 J/KG.  HOWEVER...
STRONG HEATING WITHIN WARM SECTOR WILL STEEPEN LOW LEVEL LAPSE RATES
AND DEEP LAYER SHEAR REMAINS MORE THAN ADEQUATE FOR ORGANIZED STORMS
INCLUDING SUPERCELLS/SMALL BOW ECHOES. THE POTENTIAL FOR
ORGANIZED/SUSTAINED UPDRAFTS AND STEEP LOW LEVEL LAPSE RATES MAY
OVERCOME LIMITED INSTABILITY AND SUPPORT MARGINALLY SEVERE HAIL AND
ISOLATED DAMAGING WINDS.  SEVERE THUNDERSTORM WATCH BEING CONSIDERED
FOR PART OF THIS REGION.

..EVANS.. 12/04/2005

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

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

33338829 34098426 32818350 31918507 31398825 

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