ZCZC NFDSPENES ALL
SPENES
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 12/17/07 1731Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: G11  1700Z
NOAA AMSU:  1215Z-1358Z
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LOCATION...CALIFORNIA...OREGON...
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ATTN WFOS...PDT...MFR...STO...MTR...PQR...EKA...
ATTN RFCS...NWRFC...CNRFC...
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EVENT...MOISTURE LADEN SYSTEM APPROACHING POISED TO BRING MOD/HVY PRECIP
TONIGHT/TUESDAY
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SATELLITE ANALYSIS AND TRENDS...VORT/SFC CIRC NR 44N 138W HAS TAKEN
A MORE ERLY TURN AFTER MOVG SE. THIS WILL BRING FIRST SHOT OF MOD/HVY
PRECIP TO OR/NW CA TONIGHT. RECENT AMSU PASS INDICATED RAIN RATES AROUND
0.1-0.15"/HR..WITH SOME PIXELS AROUND 0.25". HOWEVER..FOCUS OF HEAVY
RAIN WILL SHIFT TO CA LATE TONIGHT OR TUESDAY..AS BAROCLINIC BAND/PW
PLUME/ PRECIPITABLE WATER PLUME ARE ALL SHOWING INDICATIONS OF SHIFTING
SEWD IN RESPONSE TO BUILDING UPSTREAM RIDGE AND AND DIGGING JET E OF
RIDGE. PLEASE SEE GRAPHIC DEPICTING THE FEATURES AT WEB ADDRESS BELOW
IN APPX 10 MINUTES.  AS SHOWN ON GRAPHIC..PW PLUME HAS ORIGINS IN WPAC
SUBTROPICS..WITH VALUES OF OF 1.4"PLUS W OF 145W AND 1.6"PLUS W OF
170W. WITH ABOVE HIGH PW'S/ABOVE NORMAL..MOD/STRONG JET DYNAMICS AND
THETA-E ADVECTION..WOULD EXPECT HVY/SIGNIFICANT RAINFALL TOTALS OVER
THE DISCUSSION AREA TONIGHT/TUESDAY.
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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 4507 12175 4063 12203 3687 12168 3721 12689 4467 12740
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