ZCZC NFDSPENES ALL
SPENES
PAZ000-MDZ000-VAZ000-WVZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/11/08 1959Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 1945Z    CW
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LOCATION...S PENNSYLVANIA...W MARYLAND...N VIRGINIA...E WEST VIRGINIA...
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ATTN WFOS...CTP...LWX...PBZ...
ATTN RFCS...MARFC...OHRFC...
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EVENT...INCREASING RAIN RATES WITH MAIN CLOUD BAND EAST OF UPPER LOW
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SATELLITE ANALYSIS AND TRENDS...LATEST IR IMAGERY SHOWS CLOUD TOP TEMPS
COOLING ALONG SOUTHERN PORTIONS OF A MAIN CLOUD BAND EXTENDING NWRD
FROM DAN IN SOUTH-CENTRAL VA INTO W PA.  CLOUD TOPS JUST SW OF CHO IN
CENTRAL VA HAVE COOLED TO -55C PER 1945Z.  CLOUD TOPS ARE ALSO SEEN TO
BE EXPANDING ACROSS SOUTH-CENTRAL VA WHERE SFC MOISTURE CONVERGENCE IS
SEEN TO BE STRONGEST.  CONCERN IS FOR RAIN RATES ACROSS NORTH-CENTRAL
VA/EXTREME E WV/EXTREME W MD/S CENTRAL PA TO INCREASE TO AROUND 1.0"/HR
WITH MAIN CLOUD BAND ROTATING COUNTER-CLOCKWISE AROUND THE CUTTOFF
UPPER LVL LOW CENTERED NEAR THE KY/OH BORDER AND MOVING SLOWLY EWD.
MANUAL STLT RAIN RATES ARE ESTIMATED TO BE AROUND 0.75"/HR WITH COLDEST
CLOUD TOPS SW OF CHO.
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GOES PW DATA..RAOB AND PROFILER WINDS SUGGESTS BEST AXIS OF LLVL MOISTURE
TRANSPORT RUNS E-W FROM DE/NJ COASTLINE WWD INTO MD/S CENTRAL PA/NE VA
WITH ESE 25-35KT ONSHORE FLOW.  WITH CLOUD TOPS COOLING AND EXPANDING AND
MOVING NWD INTO A MORE MOISTURE ENRICHED ENVIRONMENT..HVY RAINS ASSOCIATED
WITH THIS CLOUD BAND ARE EXPECTED TO CONTINUE OVER THE DISCUSSION ARE FOR
THE NEXT FEW HRS AND WITH POCKETS OF UP TO 1.0"/HR RAIN RATES POSSIBLE.
RAINFALL AMOUNTS COULD REACH AS HIGH AS 1.5-2.0" IN THE NEXT FEW HRS.
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SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST.
....NESDIS IS A MEMBER OF 12 PLANET....
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SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES:
HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/
...ALL LOWER CASE EXCEPT /PS/PCPN/
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LAT...LON 4031 7791 3891 7734 3872 7908 4024 7954
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