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

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

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

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