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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/12/08 0157Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 0145Z     CW
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LOCATION...S PENNSYLVANIA...MARYLAND...NE VIRGINIA...DISTRICT OF
COLUMBIA...
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ATTN WFOS...PHI...CTP...LWX...
ATTN RFCS...MARFC...
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EVENT...HVY RAIN TO CONTINUE FOR NEXT SEVERAL HRS
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SATELLITE ANALYSIS AND TRENDS...STLT IMAGERY SHOWS MAIN CLOUD BAND HAS
CONTINUED TO BECOME MORE NEGATIVELY TILTED AS IT IS ORIENTED ESE-WNW
ACROSS COASTAL MD/DE WNW INTO S CENTRAL PA.  AXIS OF HVY RAIN IS SEEN
COLLOCATED WITH THIS CLOUD BAND PER RADAR WITH STLT ESTIMATED RAIN RATES
REACHING UP TO 0.50-1.0"/HR.  THE ESE 925-850MB LLVL JET HAS INCREASED TO
50 KTS PER PROFILER DATA AT WALLOPS ISLAND PROVIDING VERY HIGH MOISTURE
FLUX INTO DE/MD/S CENTRAL PA.
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HVY RAIN IS EXPECTED TO PERSIST OVER MUCH OF MD/DE/S CENTRAL PA
OVER THE NEXT SEVERAL HRS AS THE MAIN PRECIP AND CLOUD BAND ROTATES
AND BACKS ACROSS THIS AREA THIS EVENING.  ADDITIONAL RAINFALL
AMOUNTS OF 1-2" SEEMS VERY LIKELY OVER THE NEXT 2-3 HRS AND THAT
AMT DOES APPEAR TO EXCEED OR COME CLOSE TO SOME FFG VALUES IN THE
FOLLOWING COUNTIES.. FREDERICK..MONTGOMERY..PRINCE GEORGES..ANNE
ARUNDEL..HOWARD..CARROL.. BALTIMORE..BALTIMORE CITY..HARTFORD IN
MD..DC..YORK..S LANCASTER..SE ADAMS IN PA.  THIS AREA OF CONCERN AGREES
RATHER WELL WITH HPC EXCESSIVE RAINFALL POTENTIAL OUTLOOK ISSUED AT 0145Z.
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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 4018 7666 3968 7580 3871 7693 3942 7763
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