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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/18/07 1509Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11 1500Z  GG
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LOCATION...OREGON...WASHINGTON...
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ATTN WFOS...PDT...MFR...SEW...PQR...
ATTN RFCS...NWRFC...CNRFC...
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EVENT...UNSEASONABLE RAINS
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SATELLITE ANALYSIS AND TRENDS...WV LOOP SHOWS STRONG EASTERN VORT LOBE OF
MAIN N-S ELONGATED UPPER LOW HAS BEGUN TO BEND OUTWARD TO SEA WITH THE
NEXT WEAKER LOBE BEGINNING ITS RUN TOWARD THE CA COAST.  HOWEVER...MAIN
MOISTURE PLUME HAS BEEN SHUNTED WELL INLAND TO NE CA WITH VALUES OF 1.5"
PER GPS BEING MEASURED IN THE NORTHERN VALLEY...BUT THE CONNECTION TO
THE TROPICS IS BEING CUT WITH THIS NEXT SHORTWAVE DRIVING THE DRIER
AIR EASTWARD ATTM.  STILL AMPLE DEEP MOISTURE IS AVAILABLE OVER NE CA
ACROSS CENTRAL OR (E OF OLD OCCLUSION BOUNDARY) AND W WA.  WITH THE VORT
MOVING WNW...MOST OF N OR AND WA ARE IN AN LARGE AREA OF LARGE SCALE
ASCENT/DIFFLUENCE FOR MODERATE TO HVY STRATIFORM RAINFALL PRODUCTION.
THIS IS VERY PRONOUNCED WITH THE LEAF BAND FEATURE THAT EXTENDS FROM A
POINT ALONG THE SIERRA NEVADA RANGE IN NE LASSEN COUNTY CA BUT WITH MANY
FEEDER BANDS FINALLY CONVERGING ACROSS N LAKE COUNTY WHERE THE DIFFLUENCE
IN FLOW IS LEADING TO A 70MI WIDE BAND ACROSS JEFFERSON/WASCO/HOOD RIVER
COUNTIES IN OR TO SKAMANIA/LEWIS/PIERCE/KING COUNTIES IN WA.  THIS BAND
HAS BEEN COOLING TO -58C HIGH MOISTURE FOR MODERATE RATES OF .5-.75"/HR
WHICH HAS TOTALED TO NEARLY 2" OVER HOOD RIVER AND WASCO COUNTIES IN
THE LAST 3 HOURS PER SATELLITE ESTIMATORS.

AS THE DAY PROGRESSES...AREAS EAST OF THIS BAND ARE RECEIVING GOOD
SOLAR HEATING FOR CONVECTION TO DEVELOP.  ISOLATED CELLS AREA EXPANDING
OVER NW OR AND W WA ATTM...BUT WINDS ARE TOO STRONG FOR PERSISTENT HVY
RAINS...THOUGH SHORT DURATION URBAN STYLE FLOODING COULD BECOME AN ISSUE
THOUGH UNLIKELY.
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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 4889 12196 4251 12021 4229 12183 4494 12513 4840 12507
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