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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 09/08/07 2149Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: G12  2140Z  CK
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LOCATION...NW PENNSYLVANIA...NE OHIO...
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ATTN WFOS...PBZ...CLE...
ATTN RFCS...OHRFC...
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EVENT...NEW CELLS DEVELOPING OVER NE OH AS TSTMS MERGE OVER NW PA
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SATELLITE ANALYSIS AND TRENDS...VERY WARM TOPS TSTMS HAVE BEEN TRAINING
ACRS ERIE AND CRAWFORD COUNTIES PA SINCE 1915Z..WITH A COUPLE OF MERGERS
OCCURRING OVER CRAWFORD COUNTY. DUE TO WARM TOP NATURE OF CELLS AS WELL
AS MERGERS..AUTOMATED STLT ESTIMATES ARE TOO LOW. MANUAL STLT ESTIMATES
INDICATE THAT HALF HR RAINFALL RATES HAVE EXCEEDED 1" AT TIMES..WHERE
MERGERS HAVE OCCURRED. LATEST VIS AND IR IMAGERY SHOW NEW CELLS HAVE
BEEN DEVELOPING SINCE 21Z OVER NE OH..NE OF CAK. IMAGERY ANIMATIONS
SUGGESTS THAT WITH THE INCR IN NUMBER OF CELLS..MERGERS ARE LIKELY INVOF
ASHTABULA/TRUMBULL COUNTY OVER THE NEXT HR...WITH SOME OF THE OH CNVTN
EXPECTED TO MOVE INTO CRAWFORD AND MERCER COUNTIES IN PA OVER THE NEXT
1-2 HRS. THIS TREND..ALONG WITH HIGH PW'S AND DEW POINTS..SUGGEST THAT
ADDITIONAL RAINFALL AMOUNTS OVER THE ABOVE-MENTIONED COUNTIES BTWN 1-3"
ARE LIKELY.
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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 4191 7973 4147 7980 4123 8119 4158 8126
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