ZCZC NFDSPENES ALL
SPENES
CAZ000-ORZ000-WAZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 01/29/08 0814Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11: 0800Z		DS
NOAA AMSU: 0507Z
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RESENT FOR CORRECTION TO QUOTES
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LOCATION...N CALIFORNIA...OREGON...WASHINGTON...
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ATTN WFOS...OTX...PDT...MFR...STO...SEW...PQR...EKA...
ATTN RFCS...NWRFC...CNRFC...
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EVENT...APPROACHING PAC NW STORM
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SATELLITE ANALYSIS AND TRENDS...WV IMAGERY SHOWS UPPER LOW DROPPING SEWD
OUT OF THE GULF OF AK AND IT IS CURRENTLY LOCATED AT 55N/143W. MOISTURE
HAS ALREADY STARTED TO COME ASHORE IN ADVANCE OF THE SYSTEM BRINGING
RAIN AND HIGHER TERRAIN SNOWS TO THE COASTAL RANGES AND THE WA/OR
CASCADES. HOWEVER..SYSTEM IS NOT CONNECTED WELL AT ALL TO SUBTROPICAL
MOISTURE AND AS SEEN ON WV..MOISTURE AXIS IS QUICKLY BEING PUSHED SWD BY
THE STRNG NW-SE ORIENTED 180 KT JET ACROSS THE CENTRAL ALUETIANS PER SATL
WINDS. IN ADDITION THE WIND FIELD AT NEARLY ALL LVLS IS PERPENDICULAR
TO THE MOISTURE PLUME MAKING MOISTURE TRANSPORT VERY WEAK. 05Z AMSU
PASS SHOWED A WIDE BUT WEAK PW PLUME OFF THE WA/OR/N CA COASTS THAT
HAD VALUES BETWEEN 0.65-0.8" AND MAX VALUES OF 0.85" SINKING SWD NEAR
41N/133W. AREAL AVG RAINFALL RATES WERE ALMOST ENTIRELY UNDER 0.1"/HR IN
THE OFFSHORE PRECIP WITH ONLY ONE PIXEL W OF SW WA DEPICTING BARELY OVER
0.1"/HR. AREAL AVG RATES WITHIN THE CASCADES WERE UNDER 0.05"/HR FROM
THIS PASS AS WELL. WITH THE TIMING OF THE SYSTEM..THE COLD AIR ALOFT AND
LOW SFC TEMPS..PARTICULARLY IN WA E OF THE CASCADES..MOST OF THE PRECIP
WILL BE IN THE FORM OF SNOW WITH ONLY THE COASTLINE AND COASTAL VALLEYS
OF WA/N OR POSSIBLY STAYING RAIN.
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NEXT SYSTEM BUILDING QUICKLY IN THE PAC LOOKS LIKE IT WILL BE A MUCH
BETTER PRECIP EVENT. PW VALUES OF 1.6-1.8" HAVE ALREADY BEEN PULLED NWD
TO 40N/170W AND FLOW IS PARALLEL TO THE PLUME. POSSIBLE THAT THIS NEXT
SYSTEM WILL MERGE WITH THE REMAINS OF THE CURRENT STORMS PW PLUME OUT
NEAR THE DATELINE AND BE ABLE TO PULL MOISTURE FROM THE TROPICS INVOF
180W AS THE STORM PROGRESSES EWD. SEE WEB ADDRESS IN 5-10 MIN 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 4926 12570 4920 12043 4038 12169 4029 12590
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