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000
AGPN40 KWNM 200308
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
808 PM PDT WED JUN 19 2013

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

LOW PRES 1016 MB CNTRD W OF THE NRN WTRS WILL DISPT WHILE ANOTHER
LOW PRES FARTHER W WILL MOVE INTO THE CURR POSN OF THE ABOVE LOW.
HGH PRES 1028 MB W OF THE REGION HAS A RIDGE INTO MOST OF THE SRN
WTRS AND IT WILL MV E AS IT WEAKENS BUT STILL MAINTAIN A RIDGE
ACRS THE REGION. INLAND LOW PRES OVR AZ STILL HAS A TROF XTNDG NW
ACRS CA AND HAS MAINTAINED A TIGHT PRES GRDNT OVR THE ERN PARTS
OF THE SRN WTRS WHERE GALE FORCE WINDS ARE. THE SEAS ARE PEAKING
AT 10 FT OVR THE SRN WTRS AND THE NWW3 MULTI GRID FITS WELL WITH
THE OBSCD SEAS PATTERN. THE MDLS ARE IN GUD AGRMNT AND SO WILL
NOT MAKE ANY MJR CHGS TO THE PREVAILING FRCST AND WILL STAY WITH
GFS FOR THE UPDATE.

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PREVIOUS DISCUSSION...

WEAK LOW PRES CURRENTLY OVER THE WASHINGTON OFFSHORE WATERS WILL
MOVE NE AND INLAND LATER TODAY AND TONIGHT. ONE WEAK COLD FRONT
WILL THEN MOVE ACROSS THE PZ5 WATERS SAT...FOLLOWED BY ANOTHER
WEAK FRONT SUN. FARTHER S...A LOW PRES TROF ALONG THE SRN
CALIFORNIA COAST IS CURRENTLY COMBINING WITH HIGH PRES CENTERED
W OF THE PZ6 WATERS TO PRODUCE NW WINDS UP TO 35 KT ACROSS
PORTIONS OF THE CENTRAL AND SRN CALIFORNIA OFFSHORE WATERS WITH
THE STRONGEST CONDITIONS W OF POINT CONCEPTION. MINIMAL GALES
WILL CONTINUE INTO THU AND THEN WEAKEN. STRONGEST WINDS ACROSS
THE SRN AND CENTRAL PZ6 WATERS WILL THEN REMAIN NEAR 30 KT
THROUGH SUN. CURRENT WARNINGS LOOK REASONABLE AND FEW CHANGES
SHOULD BE NEEDED ON THE NEXT OFFSHORE FORECAST.

THE MULTIGRID NWW3 LOOKS REASONABLE WITH THE SEAS AND WILL BE
FOLLOWED FAIRLY CLOSELY DURING THE FORECAST PERIOD.

EXTRATROPICAL STORM SURGE GUIDANCE...N/A.


.WARNINGS/FORECAST CONFIDENCE...PRELIMINARY. ANY CHANGES WILL BE
COORDINATED THROUGH AWIPS 12 PLANET CHAT OR BY TELEPHONE:

.PZ5 WASHINGTON/OREGON WATERS...
.CAPE FLATTERY TO CAPE LOOKOUT...NONE.
.CAPE LOOKOUT TO PT ST GEORGE...NONE.

.PZ6 CALIFORNIA WATERS...
.PT ST GEORGE TO PT ARENA...NONE.
.PT ARENA TO PT CONCEPTION...NONE.
.PT CONCEPTION TO GUADALUPE ISLAND...GALE OVERNIGHT INTO THU...HI
CONFDC. GALE FRI...LOW TO MDT CNFDC. $$

.FORECASTER MUSONDA/NOLT. OCEAN PREDICTION CENTER.