Marine Interpretation Message
Issued by NWS

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AGPN40 KWNM 011427
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
727 AM PDT WED JUL 1 2015

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

12Z OPC SFC ANALYSIS SHOWS A HIGH PRES RIDGE OVER THE PZ5/PZ6
OFFSHORE WATERS W/A LOW PRES TROUGH ALONG THE CA COAST. WILL NOT
MAKE SIGNIFICANT ADJUSTMENTS TO THIS INTERMEDIATE FORECAST
UPDATE.

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PREVIOUS DISCUSSION...

STRONG HIGH PRES W OF THE PZ5 WATERS IS CURRENTLY COMBINING WITH
A LOW PRES TROF OVER CALIFORNIA TO PRODUCE NRLY WINDS UP TO 30 KT
OR SO OFF THE COAST OF NRN CALIFORNIA WITH THE STRONGEST
CONDITIONS W OF POINT ST GEORGE. WINDS UP TO 30 KT WILL CONTINUE
ACROSS THE OFFSHORE WATERS TONIGHT AND THEN BEGIN TO SLOWLY
DIMINISH WED AND WED NIGHT. STILL EXPECT NW GALES TO DEVELOP
ACROSS NRN PORTIONS OF THE PZ5 WATERS BY LATE FRI AS A LOW PRES
TROF DEVELOPS OVER VANCOUVER ISLAND. THE GALES WILL CONTINUE INTO
SAT BEFORE DIMINISHING SAT NIGHT. FOR WIND GRIDS WILL USE THE GFS
10M WINDS THROUGHOUT. CURRENT FORECAST LOOKS REASONABLE AND FEW
CHANGES SHOULD BE NEEDED ON THE NEXT OFFSHORE FORECAST.

SEAS WILL CONTINUE TO BUILD OFF OF NRN CALIFORNIA TONIGHT AND BE
NEAR 12 FT BY EARLY WED. BY FRI NIGHT AND SAT SEAS ACROSS PORTIONS
OF THE WASHINGTON OFFSHORE WATERS WILL BUILD TO 14 OR 15 FT AS THE
NW GALES DEVELOP. FOR SEAS WILL CONTINUE TO USE THE NWW3
THROUGHOUT.

EXTRATROPICAL STORM SURGE GUIDANCE...N/A.



.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
.PZZ800...INNER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE POSSIBLE FRI INTO SAT.
.PZZ900...OUTER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE POSSIBLE FRI NIGHT.

.PZ6 CALIFORNIA WATERS...
     NONE.

$$

.FORECASTER HOLLEY/NOLT. OCEAN PREDICTION CENTER.


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