EXCESSIVE RAINFALL DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
244 AM EDT SUN APR 17 2011
 
...VALID 06Z SUN APR 17 2011 - 12Z MON APR 18 2011...
...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL...
 

SLIGHT RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
20 SW BHB 20 SSE NHZ 15 SE SFM 15 W PSM 10 NW MHT 20 NNE AFN
15 NNE EEN 10 SE VSF VSF 15 NE RUT 25 SW MPV 15 WSW MPV
10 NW MPV 15 WSW 1V4 1V4 HIE BML 35 ENE BML 30 SSW GNR
25 SSW MLT 30 WNW CWSS 10 SSW CWSS 20 S CWSS 30 W CXGM 20 E BHB
20 SW BHB.

 
THE NEG TILT H5 S/WV THAT'S CURRENTLY PRODUCING THE HVY
RNFL/CNVCTN SRN NEW ENG INTO THE NRN MID ATLC STATES WL LIFT
QUICKLY THRU NEW ENG ERY BY ERY SUN AFTN..AHD OF THE
PROGRESSIVE/LIFTING OUT CLOSED H5 LOW NOW OVR THE GTLKS.  STG
INFLO OF ATLC MSTR WL..HOWEVER..CONT AHD OF THIS S/WV ON
60+ KTS OF SLY LLJ..BRINGING PWS OF 1.00-1.25 INCHES INTO PTNS OF
SRN NEW ENG.  THIS HI MSTR AVBLTY ALG WITH FAVORABLE LRG SCALE
LIFT FM IMPRESSIVE HGT FALLS AND UPR DIFL WL SUPPORT A QUICK SHOT
OF HVY RAINS..ESP DURG THE NEXT 6 HRS OVR PARTS OF NEW ENG.  LCL
1-1.50 INCH RAINS COULD CAUSE SOME RUNOFF PROBS WITHIN THE THREAT
AREA..ESP WHERE SOME FF GUIDANCE VALUES ARE RATHER LOW.

TERRY
$$