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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 01/23/08 2108Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12: 2045Z		DS
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LOCATION...W/NW NEW YORK...NW PENNSYLVANIA...
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ATTN WFOS...BGM...BUF...CLE...
ATTN RFCS...NERFC...OHRFC...
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EVENT...LES BANDS
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SATELLITE ANALYSIS AND TRENDS...LE SNOW BANDS ARE PRESENT OFF OF BOTH
LK ERIE AND ONTARIO THIS AFTERNOON BRINGING ADDITIONAL SNOW ACCUM TO
THE SNOWBELTS. SFC WINDS ARE DUE WRLY ACROSS LK ONTARIO CURRENTLY WHICH
HAS ALLOWED FOR A SINGLE WELL DEFINED PLUME TO REMAIN IN PLACE ORIENTED
W-E ACROSS THE LK AND OVER THE OSWEGO/JEFFERSON CO BORDER..STRETCHING
WELL INTO THE TUG HILL REGION. SOME HIGH CLOUDS HAVE MOVED IN OVER TOP
THE BAND MAKING ITS CT TEMP SEEM COLDER BUT THE BAND ITSELF STILL HAS
A TEMP OF ABOUT -22 TO -23C..THE SAME AS EARLIER THIS MORNING. RUC FCST
SOUNDINGS FROM BUFKIT SHOW THE LK INDUCED EQL TO BE -22.3C SO IT SEEMS
TO BE RIGHT ON WITH SATL DERIVED CT TEMPS. VIS IMAGERY DEFINITELY SHOWS
BETTER ORGANIZATION OF THE CENTRAL/ERN PART OF THE BAND PROBABLY DUE
TO LL CNVG FROM THE APPROACHING ARTIC FRNT OUT OF CANADA. SATL WINDS
INDICATE 20-25KTS OF LL WRLY FLOW ACROSS LK ONTARIO CURRENTLY WHICH
SHOULD ALLOW FOR THE HVY SNOW WITHIN THE PLUME TO CONTINUE DUE E OF
THE LK UNTIL LATER TODAY WHEN INTERACTION WITH THE FRNT OVER THE LK
FORCES THE BAND SWD. WITH STRNG OMEGA SEEN IN FCST SOUNDINGS AND LITTLE
MOVEMENT EXPECTED..SNOWFALL RATES OF 2-3"/HR WILL BE COMMON WITH HIGHER
RATES WHERE ORAGRAPHIC LIFT IS STRONGEST.
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OFF OF LK ERIE..HIGHER CLOUDS HAVE GREATLY OBSCURED THE VIEW SINCE PRIOR
TO 18Z BUT OBS STILL SHOW ONLY 0.5 MILE VISB AT KDKK SO MOD/HVY SNOW IS
OBVIOUSLY STILL OCCURRING WITHIN A THIN BAND UNDER THE CLOUD COVER. SFC
WINDS ARE SWRLY THOUGH SATL AND FCST SOUNDINGS INDICATE WRLY WINDS ALOFT
WHICH ARE SHEARING ANY SNOW BAND PRESENT. RUC SOUNDINGS SHOW A LK INDUCED
EQL OF ABOUT -18C WITH AVG 35F WATER TEMP FOR ERN/CENTRAL LK ERIE. CT
TEMPS PRIOR TO 18Z FOR THE BAND WERE IN THE -19 TO -20C RANGE SO BAND
WAS INTENSIFIED MORE THAN WHAT THE RUC SHOWED. SWRN END OF ERIE PLUME
CONSISTS OF MORE WIDELY SCA BANDS BUT APPEAR TO CONFORM INTO A SINGLE
THIN BAND ALONG THE ERIE PA/CHAUTAUQUA CO SHORELINE BEFORE GOING INLAND
OVER DKK. 16F DWPT AT KDKK IS QUITE IMPRESSIVE AS WELL IN AN OTHERWISE
FAIRLY DRY ENVIRONMENT SHOWING JUST HOW MUCH MOISTURE IS BEING PULLED
OFF THE LK. EXPECT BAND SHOULD STAY RELATIVELY STNRY THROUGHOUT MUCH OF
THE AFT/EVENING BUT WITH MORE SHEAR THAN OFF LK ONTARIO SNOW RATES SHOULD
ALSO BE LESS IMPRESSIVE. SEE WEB ADDRESS FOR GRAPHIC IN ABOUT 10 MIN.

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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 4426 7569 4350 7539 4209 7930 4223 8062
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