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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 02/02/08 0855Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11 0830Z  HANNA
                NOAA AMSU 0525Z
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LOCATION...CALIFORNIA...OREGON...
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ATTN WFOS...PDT...REV...MFR...STO...MTR...PQR...EKA...
ATTN RFCS...NWRFC...CNRFC...
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EVENT...MODERATE TO LOCALLY PRECIPITATION EVENT ON TAP FOR TODAY
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SATELLITE ANALYSIS AND TRENDS...LATEST GOES-11 WATER VAPOR IMAGERY SHOWS
A RATHER STRONG ANTICYLONICALLY CURVED JET STREAM CRESTING A FLAT RIDGE
WITH AN AXIS ALONG ABOUT 160W.  LEADING EDGE OF JET STREAM APPEARS TO
BE ROUGHLY CORRELATED WITH DRY INTRUSION ALONG 130W.  SHORTWAVE ENERGY
ASSOCIATED WITH THE LEADING EDGE OF JET STREAM LOOKS TO BE ASSOCIATED
WITH ENHANCING CLOUD TOPS JUST OFFSHORE NW CA AND OR.  LATEST NOAA
AMSU PRECIPITABLE WATER ANALYSIS (0525Z) SHOWS A WELL DEFINED CORRIDOR
OF 1.00-1.25" PWS EXTENDING FROM WEST OF THE DATELINE AND ROUNDING
THE BROAD BASED RIDGE AXIS.  THE LEADING EDGE OF THE DEEPEST MOISTURE
(1.00"+ PWS AND 200% ABOVE CLIMATOLOGICAL NORMS) WAS ROUGHLY COINCIDENT
WITH THE LEADING SHORTWAVE TROF.  HAVE ALREADY BEGUN TO SEE RAINFALL
DEVELOP BETWEEN ACV AND CEC ASSOCIATED WITH THE LEADING EDGE OF WAA.
THIS TREND SHOULD CONTINUE OVER THE NEXT 6 HRS WITH THE INCREASE IN DPVA
AND WAA WITH APPROACH OF LEFT EXIT REGION OF AFOREMENTIONED JET STREAK.
STRENGTHENING AND BACKING LOW LEVEL FLOW SHOULD HELP TO FOCUS BEST
PRECIPITATION TOTALS ALONG WESTERN AND SOUTHERN FACING TERRAIN OF THE
COASTAL RANGES/CASCADES/SHASTA-SISKIYOUS.  EVENING SOUNDINGS SUGGESTED
SNOWFALL LEVELS WERE RUNNING NEAR 2500 FT AND BELIEVE THAT THESE LEVELS
SHOULD ONLY SLIGHTLY RISE INTO TODAY WITH THE ONSET OF WAA.
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SECOND AND BETTER DEFINED SHORTWAVE TROF/JET STREAK WAS LOCATED WITH THE
STRENGTHENING DRY SLOT/TROP FOLD ON WV IMAGERY JUST SE OF THE ALEUTIANS.
APPEARS AS THOUGH THIS SYSTEM WILL HAVE A LITTLE MORE ROOM FOR DIGGING
CONSIDERING IT'S EXCELLENT APPEARANCE ON WV IMAGERY ALONG WITH THE
UPSTREAM RIDGE AMPLIFICATION CURRENTLY UNDERWAY ALONG ABOUT 170W.  THUS,
EVEN THOUGH THERE MAYBE A SHORT RESPITE FROM THE HEAVIEST PRECIPITATION
WITH PASSAGE OF LEADING SHORTWAVE TROF AT SOME POINT THIS AFTERNOON,
PRECIPITATION SHOULD BE QUICK TO REDEVELOP OVER THE REGION LATER THIS
AFTERNOON AND INTO THE EVENING HOURS WITH APPROACH OF UPSTREAM SYSTEM.
WILL CONTINUE TO MONITOR.
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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 4503 12385 4456 12171 4282 12066 4195 12069 4073 12120
3878 12307 3831 12485 4091 12552 4360 12512
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