MESO: Nws Weather Prediction Center College Park Md

AWUS01 KWNH 160022
FFGMPD
COZ000-160400-

MESOSCALE PRECIPITATION DISCUSSION 0258
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
821 PM EDT SUN SEP 15 2013

AREAS AFFECTED...SOUTHERN CO

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

VALID 160012Z - 160400Z

SUMMARY...FLASH FLOODING REMAINS POSSIBLE ACROSS SOUTHERN CO AS
CELLS MOVE OUT ONTO THE PLAINS.

DISCUSSION...CELLS PRODUCING RAINFALL RATES UP TO AN INCH PER HOUR
WERE MOVING OUT ONTO THE PLAINS LATE THIS AFTERNOON. WHILE THE
STORMS SHOULD EVENTUALLY MOVE OVER AREAS WITH HIGHER
FFG...GUIDANCE REMAINS PRETTY LOW OVER THE WESTERN AND NORTHERN
PORTION OF THE OUTLOOK AREA.

THE 15/21Z HRRR GENERATED SOME 3 HRLY RAINFALL AMOUNTS BETWEEN 1.5
INCHES AND 2 INCHES THROUGH 06Z. LOOPING HOURLY RAINFALL AMOUNTS
FROM THE HRRR SUGGESTS THAT HEAVIEST RAINFALL RATES WOULD PERSIST
THROUGH ABOUT 04Z BEFORE TAPERING OFF. UNTIL THEN...THE RISK OF
FLASH FLOODING SHOULD CONTINUE.

BANN

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

ATTN...WFO...GLD...PUB...BOU...

ATTN...RFC...ABRFC...MBRFC...

LAT...LON 38480473 39540383 38770276 37730265 37250373 37750493
38480473

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