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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 01/09/07 2120Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: G11  2100Z  CK
NOAA AMSU: 1450Z-1802Z
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LOCATION...W WASHINGTON...W OREGON...N CALIFORNIA
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ATTN WFOS...PDT...MFR...STO...SEW...PQR...EKA...
ATTN RFCS...NWRFC...CNRFC...
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EVENT...NEXT ROUND OF PRECIP FOR TONIGHT AND THURSDAY
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SATELLITE ANALYSIS AND TRENDS...NEXT PRECIP EVENT FOR DISCUSSION AREA
CONTINUES TO EVOLVE..MOST NOTICEABLY IS THE CNVTV BAND W OF 130W MOVG TWD
THE WA COAST..FOR TONIGHT. G11 WV IMAGERY SHOWS EXTENSIVE CONVEYOR BELT OF
MID LVL MOISTURE FM WELL NW OF HI THRU THE PACNW/N CA COAST.. ACCOMPANIED
BY STRONG SUBTROPICAL JET WITH MAX UPPR LVL WINDS IN EXCESS OF 160KTS. WV
PLUME IS COINCIDENT WITH PW PLUME PER G11 WV AND NOAA AMSU IMAGERY.. WITH
PW VALUES IN THE 1-1.5" RANGE. AMSU RAIN RATES WERE GENERALLY LESS THAN
0.1"/HR..WITH LATEST 18Z AMSU PASS SHOWING SOME PIXELS OFF THE OREGON/NW
CA COAST AROUND 0.12"/HR. THE INDICATED RAIN COVERAGE WAS EXTENSIVE..FM
JUST S OF 40N TO AS FAR N AS 51N WITH CNVTV BAND W OF 130W. THE EWD EXTENT
OF THE RAIN WAS FAIRLY CLOSE TO OR/NW CA COAST. THE AMSU PASS THAT IS W OF
130W IS FM 1450Z..AND INDICATED RAIN RATES UP TO 0.4"/HR WITH CNVTV BAND.
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LATEST G11 IMAGERY SHOWS DEVELOPING CNVTV BAND EXTENDS FM 44N 135W NEWD
TO JUST W OF 50N 130W. CLOUD TOPS HAVE ENHANCED SINCE EARLIER MICROWAVE
PASS..AND USING THE EARLIER AMSU RAIN RATES ALONG WITH CURRENT G11
IR.. SUGGESTS MAX RAIN RATES UP TO THE 0.5-0.75"/HR RANGE..WITH SOME
SPOTS IN EXCESS OF 0.75"/HR. WHAT APPEARS TO BE FUELING THIS BAND IS
THE LIFT PROVIDED BY SHORT WAVE JUST TO THE W..AS WELL AS LEFT EXIT
REGION OF 160KT+ JET STREAK. STLT XTRAP BRINGS THIS BAND TO WA COAST
DURING THE EARLY PORTION OF THE NT. WITH SWRLY FLOW ALOFT..IT IS PSBL
THE THE HEAVIEST RATES WILL PUSH INTO VANCOUVER..NEVERTHELESS..WOULD
STILL EXPECT SOME HVY RATES TO PUSH INTO W WA AS WELL..AND IF THE BAND
BUILDS SWD WOULD EXPECT SOME MOD/HVY PRECIP TO PUSH INTO NW OR AS WELL.
AS FOR CA...AS MENTIONED ABOVE..MICROWAVE RAIN RATES WERE ON THE LIGHT
SIDE OFF THE NW CA COAST...SO WOULD EXPECT LOWER RATES FOR N CA..AT LEAST
INITIALLY. HOWEVER...COMBINATION OF SHORT WAVE W OF 150W WITH UPPR JET
MAY ENHANCE OFFSHORE RATES. THUS..IT IS PSBL THAT SOME MOD TO PERHAPS
HVY PRECIP COULD AFFECT NW/N CA AS WELL OVERNIGHT.
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PLEASE SEE GRAPHIC THAT DEPICTS STLT FEATURES MENTIONED IN THIS
SPENES. THE GRAPHIC WILL BE AVAILABLE AT WEB ADDRESS BELOW IN APPX
10 MINUTES.
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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 5006 12653 4959 12163 4064 12170 3962 12508
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