ZCZC NFDSPENES ALL
SPENES
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 11/17/07 0810Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11 0800Z  RUMINSKI
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LOCATION...CALIFORNIA...OREGON...
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ATTN WFOS...MFR...PQR...EKA...
ATTN RFCS...NWRFC...CNRFC...
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EVENT...SERIES OF IMPULSES BRINGING PROLONGED PERIOD OF RAIN TO PARTS
OF WESTERN OREGON
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SATELLITE ANALYSIS AND TRENDS...GULF OF ALASKA UPR LOW REMAINS IN PLACE
WITH LONG-FETCH MOISTURE/PW PLUME IN PLACE FROM NEAR THE OR/CA BORDER
STRETCHING INTO THE SUBTROPICS W OF HAWAII. SERIES OF SHORT WAVES EMBEDDED
IN FLOW WILL CONT TO IMPACT SW OR AT LEAST NEXT 12-24 HRS.
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SATELLITE DERIVED WINDS INDICATE NOSE OF 140 KT JET JUST ABOUT IN TANDEM
WITH SHORT WAVE VORT NOW APCHG 130W. AS THIS FTR APCHS THE COAST EXPECT
THAT RAINFALL WILL INCR OVER MOST OF THE OR COAST LATE TNGT AND THRU THE
MRNG HRS. EXPECT HEAVIEST RAINFALL FROM LANE COUNTY S TO THE CA BORDER
INITIALLY AS THIS RGN LIES ALG AND JUST N OF THE AXIS OF MAX PW. EXPECT
HEAVIER RAIN TO SHIFT FURTHER N ALG THE COAST LTR IN THE PD AS BETTER
DYNAMICS ASCD WITH UPR JET AND 8H THETA-E ADV SHIFT TO THIS AREA.
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LATEST AMSU MICROWAVE PASS FROM ARND 05Z SHOWED A SLUG OF MOISTURE HAS
MAINLY MVD INLAND ALG THE CA/OR BORDER WITH THE TAIL END JUST OFF THE
COAST. MAX AMNTS JUST OFF THE COAST NR 41N WERE 1.2-1.3". LOWER AMNTS
OF 1.0-1.1" THEN STRETCH BACK TO THE NEXT SLUG OF MOISTURE FROM 140-160W
ASCD WITH SHORT WAVE NOW ORGANIZING ALG THE FNTL BOUNDARY NR 160W. WILL
NEED TO MONITOR THIS SYSTEM AS IT APCHS THE COAST IN ANOTHER DAY OR
TWO. MEANWHILE..AMSU AREA AVERAGED RAIN RATES JUST OFF THE COAST AT
05Z NOT TERRIBLY IMPRESSIVE WITH ONLY SPOTTY MAX RATES OF .1"/HR WITH
MOST RATES LESS THAN THAT. HOWEVER..DO EXPECT THAT JET DYNAMICS AND
OROGRAPHICS WILL HELP INCR RATES SOMEWHAT AS SYSTEM MOVES ONSHORE.
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SEE WEB ADDRESS IN ABOUT 10 MINUTES FOR GRAPHIC.
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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 4495 12472 4482 12219 4124 12245 4112 12548
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