EXCESSIVE RAINFALL DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
250 PM EDT WED APR 20 2011
 
...VALID 18Z WED APR 20 2011 - 00Z FRI APR 22 2011...
...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL...
 

SLIGHT RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
10 NNW GTR 35 E GWO GWO 10 W GWO 20 NNW GWO 30 N GWO 45 W TUP
15 WNW TUP TUP 20 E TUP 25 W 1M4 10 WNW 1M4 10 S 1M4 35 NNW TCL
10 NNW GTR.

 
CNTRL MS/AL...

RECENT RAINS ACRS PORTIONS OF NCNTRL MS AND AL HAVE LOWERED SHRT
TERM FFG VALUES...WARRANTING AN UPGRADE TO AN OUTLOOK AREA ACRS
THIS REGION.  WHILE THE OUTFLOW BNDRY THAT EARLIER ACTIVITY WAS
FOCUSING ALONG HAS WEAKENED...ADDITIONAL CONVECTION IS FORMING
FARTHER TO THE NORTH OVR NCNTRL MS...CLOSER TO THE SYNOPTIC SCALE
FRONTAL BNDRY SINKING SEWD.  THIS FRONT SHOULD BECOME STNRY AND BE
THE FOCUS FOR ADDITIONAL CONVECTION LATE THIS AFTERNOON INTO
TONIGHT AS SWLY LOW LEVEL FLOW IN AN AXIS OF ABOVE AVG PW VALUES
CONTS INTO THIS BNDRY...WHILE UVVS/UPR DIFFLUENCE IS ENHANCED BY
SHRTWVS IN THE MEAN WSWLY FLOW ALOFT.  THERE WL BE POTENTIAL FOR
TRAINING OF CELLS IN A W TO E DIRECTION PARALLEL TO THIS STNRY
FRONT.  IN AREAS OF TRAINING..ISOLATED SHRT TERM PCPN AMTS OF
1-2"+ ARE POSSIBLE...RESULTING IN ISOLATED RUNOFF ISSUES.

ORAVEC
$$