[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 270154
SWOMCD
SPC MCD 270153 
SCZ000-270400-

MESOSCALE DISCUSSION 2265
NWS STORM PREDICTION CENTER NORMAN OK
0853 PM CDT SUN SEP 26 2004

AREAS AFFECTED...PORTIONS OF ERN SC

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 270153Z - 270400Z

THREAT FOR ISOLATED TORNADOES IS EXPECTED TO INCREASE INTO THE
OVERNIGHT...ACROSS PARTS OF ERN/COASTAL SC. AREA WILL CONTINUE TO BE
MONITORED...AND A WW WILL LIKELY BE NEEDED WITHIN THE NEXT 2-3
HOURS.

THE CENTER OF TROPICAL STORM JEANNE WAS OVER NWRN FL AND IS EXPECTED
TO CONTINUE IN A NNWWD-NWD MOTION TONIGHT. SEE LATEST DISCUSSIONS
FROM NHC FOR FURTHER DETAILS. A COASTAL BOUNDARY EXTENDS OFFSHORE
FROM SC SWWD WHERE IT HAS MOVED INLAND OVER SERN GA AND NERN FL. E
OF THE BOUNDARY...LOW LEVEL DEWPOINTS ARE IN THE MID TO UPPER 70S.
THIS BOUNDARY IS EXPECTED TO MOVE SLOWLY WWD ONTO THE SC COAST AS
JEANNE CONTINUES NWD. DESTABILIZATION INLAND WILL OCCUR AS THE
BOUNDARY MOVES ONSHORE. 

RADAR DATA CONTINUE TO SHOW DISCRETE CONVECTION OVER COASTAL SC WITH
SOME ROTATION OBSERVED. HOWEVER...THERE HAS BEEN A TENDENCY FOR THIS
ACTIVITY TO WEAKEN AS IT MOVES INTO THE MORE STABLE REGIME ONSHORE.
AS THE COASTAL BOUNDARY MOVES INLAND TONIGHT... STORMS WILL BE MORE
LIKELY MAINTAIN THEIR INTENSITY ONSHORE. STORMS INTERACTING WITH THE
BOUNDARY WILL ALSO ENCOUNTER ENHANCED LOW LEVEL SHEAR.

..DIAL.. 09/27/2004

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

ATTN...WFO...ILM...CHS...CAE...

33167933 32688012 32168094 32958130 33597943 

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