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Excessive Rainfall Discussion
 
(Caution: Version displayed is not the latest version. - Issued 0129Z Apr 19, 2014)
 
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Geographic Boundaries -  Map 1: Color  Black/White       Map 2: Color  Black/White


EXCESSIVE RAINFALL DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
929 PM EDT FRI APR 18 2014

...VALID 03Z SAT APR 19 2014 - 00Z SUN APR 20 2014...
...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL...


SLIGHT RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
40 SE SSC 25 SE FLO 15 NW CRE 10 ENE CRE 25 SSE CRE 65 S MYR
85 SE CHS 75 SE HXD 55 SE HXD 25 SSE HXD HXD 30 NNE NBC
30 NW CHS 40 SE SSC.


MADE RATHER SIGNIFICANT CHANGES TO THE EARLIER ISSUANCE..MAINLY TO
REMOVE A LARGE PORTION OF THE PREVIOUS THREAT AREA WHERE THE RAINS
HAVE EITHER STOPPED OR RAINFALL RATES ARE NOW VERY LIGHT.  THERE
WILL STILL BE A THREAT FOR FLOODING RAINS THRU THE REMAINDER OF
THE NIGHT MAINLY OVER EASTERN SC..WHERE UP TO 40KTS OF H85 INFLOW
OFF THE ATLANTIC CONTINUES TO BRING IN PWS IN EXCESS OF 1.50
INCHES AND WHERE FAVORABLE UPPER DIFFLUENT FLOW AHEAD OF THE
EASTERN GULF COAST SYSTEM SUPPORTS ENHANCED LARGE SCALE LIFT. 
THINGS ARE FORECAST TO REMAIN FAIRLY PROGRESSIVE..AND FF GUIDANCE
VALUES ARE GENERALLY QUITE HIGH EXCEPT FOR VERY SMALL AREAS NEAR
THE COAST..SO DEPICTED ONLY A SLIGHT RISK..WITH THE EXPECTATION
FOR SOME LOCAL 0.50-1.00 INCH RAINFALL AMOUNTS IN AN HOUR OR SO
AND SOME ADDITIONAL 2+ INCH AMOUNTS THIS ENTIRE PERIOD WITHIN THE
THREAT AREA.

TERRY