Flash Flood Guidance
Issued by NWS

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000
AWUS01 KWNH 241359
FFGMPD
SCZ000-FLZ000-GAZ000-241800-

MESOSCALE PRECIPITATION DISCUSSION 0439
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
859 AM EST WED DEC 24 2014

AREAS AFFECTED...FL PANHANDLE...SOUTHERN AND EASTERN GA...SOUTHERN
SC

CONCERNING...HEAVY RAINFALL...FLASH FLOODING POSSIBLE

VALID 241345Z - 241800Z

SUMMARY...ADDITIONAL FLASH FLOODING WILL BE POSSIBLE FOR A FEW
MORE HOURS THIS MORNING AS A STRONG CONVECTIVE LINE MOVES THROUGH.

DISCUSSION...VERY HEAVY RAINFALL OVER THE LAST 12 TO 24 HOURS HAS
LED TO MANY AREAS OF SOUTHERN GA AND THE FL PANHANDLE SEEING
SATURATED GROUND. A WELL-DEFINED LINE OF COLD-TOPPED CONVECTION
WITH INTENSE RAINFALL RATES IS SEEN MOVING GRADUALLY EAST ACROSS
SOUTHERN GA AND THE FL PANHANDLE AT THIS TIME.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES WITH ISOLATED HEAVIER
AMOUNTS WILL BE POSSIBLE OVER JUST A COUPLE OF HOURS AS THIS FINAL
LINE OF CONVECTION MOVES THROUGH. THESE RAINS ON TOP OF THE 6 TO 8
INCHES OF RAIN THAT HAS OCCURRED SINCE YESTERDAY MORNING WILL
EXACERBATE ONGOING FLOODING/RUNOFF PROBLEMS. THERE WAS NOT NEARLY
AS MUCH RAIN ACROSS SOUTHERN SC TO THIS POINT...BUT THE LATEST
MODELS DO SUPPORT THE POTENTIAL FOR BANDS OF INTENSE CONVECTION TO
POTENTIALLY TRAIN OVER THE SAME AREA FOR A WHILE LATER THIS
MORNING AND EARLY THIS AFTERNOON...WHICH WILL NEED TO BE MONITORED
CLOSELY.

CONDITIONS WILL OTHERWISE IMPROVE DRAMATICALLY TOWARD 18Z FOR MOST
OF SOUTHERN GA AND THE FL PANHANDLE AS THE AFOREMENTIONED COLD
FRONT MOVES EAST AND CROSSES THE REGION.

ORRISON

...PLEASE SEE WWW.WPC.NCEP.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...CAE...CHS...FFC...JAX...TAE...

ATTN...RFC...SERFC...

LAT...LON   33928144 33828070 32998052 31668120 30588191
            29828275 29148439 29598526 30198520 31048464
            32198330 33458229



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