278 
AGPN40 KWNM 261935
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN 
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1130 AM PST THU 26 NOV 2009 

.FORECAST DISCUSSION: MAJOR FEATURES/WINDS/SEAS/SIGNIFICANT 
.WEATHER FOR THE NORTH PACIFIC N OF 30N AND E OF 150W. 

LOW PRES CURRENTLY ACROSS THE OREGON WATERS IS EXPECTED TO MOVE 
INLAND TONIGHT. STILL EXPECT GALES ACROSS THE OREGON WATERS 
TODAY AND TONIGHT...ALTHOUGH THE LATEST GFS RUN IS SHOWING A 
MARGINAL EVENT FOR THE SE WASHINGTON WATERS. WILL GO AHEAD AND 
KEEP MINIMAL GALES ACROSS THE SE WASHINGTON WATERS FOR EARLY 
TONIGHT.
THE GALES ARE STILL EXPECTED TO SPREAD S INTO THE NRN PZ6 WATERS 
LATE TODAY AND TONIGHT. WILL ALSO HAVE GALES ACROSS THE CENTRAL 
AND SRN CALIFORNIA WATERS BY FRI AS STRONG HIGH PRES BUILDS W OF 
THE AREA AND A THERMAL TROF DEVELOPS ALONG THE CALIFORNIA COAST. 
THE TIMING OF ENDING THE GALES BY SAT NIGHT CONTINUES TO LOOK 
GOOD. CURRENT WARNINGS LOOK REASONABLE AND NO MAJOR CHANGES 
SHOULD BE NEEDED ON THE NEXT FORECAST PACKAGE. ONLY SMALL CHANGE
WILL BE TO HAVE MAX WINDS OF 45 KT ACROSS THE CENTRAL CALIFORNIA 
WATERS FRI NIGHT.

THE GFS NOW MOVES AN AREA OF LOW PRES TOWARDS THE NRN PZ6 WATERS 
BY TUE. THE CANADIAN IS NOT SHOWING THIS SYSTEM SO WILL GO AHEAD 
AND WEAKEN THE GFS LOW FOR THE FORECAST.

THE WAVEWATCH MODEL LOOKS REASONABLE AND WILL BE FOLLOWED FAIRLY 
CLOSELY DURING THE FORECAST PERIOD.

.WARNINGS/FORECAST CONFIDENCE...WARNINGS ARE PRELIMINARY AND ARE 
SUBJECT TO CHANGE. ANY CHANGES WILL BE COORDINATED THROUGH AWIPS 
12 PLANET CHAT OR BY TELEPHONE. 

.PZ5 WASHINGTON/OREGON WATERS... 
.CAPE FLATTERY TO CAPE LOOKOUT...GALE TONIGHT...MDT CONFDC.
.CAPE LOOKOUT TO POINT ST GEORGE...GALE TONIGHT INTO FRI...HI 
CONFDC.

.PZ6 CALIFORNIA WATERS... 
.PT ST GEORGE TO PT ARENA...GALE TONIGHT INTO SAT NIGHT...HI 
CONFDC.
.PT ARENA TO PT CONCEPTION...GALE TONIGHT THROUGH SAT NIGHT...HI 
CONFDC.
.PT CONCEPTION TO GUADALUPE ISLAND...GALE FRI INTO SAT NIGHT... 
MDT CONFDC.

.FORECASTER NOLT. OCEAN FORECAST BRANCH.