ZCZC NFDSPENES ALL
SPENES
NVZ000-CAZ000-
.
SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 02/23/08 1622Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11: 1600Z		DS
NOAA AMSU: 1210Z/1334Z	 AMSR-E: 1029Z
.
LOCATION...NEVADA...CALIFORNIA...
.
ATTN WFOS...VEF...LKN...SGX...REV...HNX...LOX...MFR...STO...MTR...
ATTN WFOS...EKA...
ATTN RFCS...CBRFC...NWRFC...CNRFC...
.
EVENT...APPROACHING PACIFIC STORM TO BRING HVY RAIN/HVY MTN SNOW TO CA
.
SATELLITE ANALYSIS AND TRENDS...UPPER LOW WRAPPING UP OFF THE CA COAST HAS
ITS CENTERED LOCATED NEAR 37N/136W PER LATEST WV. SEVERAL JET MAXES ARE
SEEN WITHIN THE UPPER TROF PER GOES STLT WINDS..A 100 KT MAX OUT AHEAD
OF THE UPPER LOW POINTED NEWD TWDS THE N CA COAST AND TWO SEPARATE JET
MAXES..ONE OF 120 KTS AND ONE OF 140 KTS ROTATING DOWN THE BACKSIDE OF
THE TROF AT THIS TIME. A GOOD SIZE S/WV IS SEEN MOVING ALONG AT 30N/140W
THAT SHOULD HELP TO AMP UP THE STORM POTENTIAL FOR LATER TONIGHT.
.
UPPER LOW WAS ABLE TO TAP LEFTOVER HIGHER PW'S THAT WERE PRESENT W OF BAJA
PENN TO INCREASE PW VALUES SE OF THE LOW TO BETWEEN 1.25-1.35". AMSR-E
SHOWS SOME EVEN HIGHER VALUES POOLED ALONG THE COLD FRNT JUST N OF THIS PW
WAVE..UP TO 1.8" WITHIN THE OFFSHORE CELLS. IN FACT AMSU AREAL AVG RAIN
RATES INDICATED NO MEASURABLE RAIN S OF 30 N ASSCD WITH THIS STORM EVEN
THOUGH THERE ARE 1.3" PW'S S OF 30 N. RAIN RATES ALONG THE COLD FRNT WERE
PRETTY IMPRESSIVE SHOWING 3 BANDS..EACH WITH AT LEAST 0.25-0.3"/HR RATES
WITHIN THEM AND THE MIDDLE BAND SHOWING SEVERAL PIXELS NEAR 0.6"/HR ON THE
NE SIDE OF THE UPPER LOW. JUST TAKING A QUICK LOOK AT 3 HR HYDROESTIMATOR
AMOUNTS OFFSHORE..THOUGH LIKELY VERY UNDERESTIMATED DUE TO WARMER TOP
NATURE OF CELLS..IT IS SHOWING BETWEEN 0.4-0.5" WITHIN THE MAIN BAND.
.
FIRST FEW VIS IMAGES IN TODAY SHOWS THE FIRST WAVE OF PRECIP FROM AN
EARLIER BAND JUST CROSSING THE CA COASTLINE NOW. 2ND (MAIN) BAND AND A
FORMING 3RD BAND ARE STILL OFFSHORE AND EXPECT THE FIRST WILL NOT BRING
TOO MUCH PRECIP BUT THOSE FOLLOWING WILL START TO BRING IN SOME HEAVIER
RAINS/MTN SNOWS STARTING FROM S OF KACV TO THE SF BAY AREA WITHIN THE
NEXT 1-2 HRS. SOME UNSTABLE CU NEAR 32N/125W MAY ALSO BRING SOME MOD
RAINS WITHIN 2-4 HRS OVER SRN CA AHEAD OF THE MAIN BAND. SEE WEB ADDRESS
FOR GRAPHIC IN ABOUT 10-15 MIN.
.
SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST.
....NESDIS IS A MEMBER OF 12 PLANET....
.
SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES:
HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/
...ALL LOWER CASE EXCEPT /PS/PCPN/
.
LAT...LON 4172 11791 3705 11500 3198 11962 4099 12632
.
NNNN
 
Full Size Graphic


-