Marine Interpretation Message
Issued by NWS

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051
AGPN40 KWNM 031508
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
808 AM PDT TUE MAY 3 2016

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

AT 12Z A HIGH PRES RIDGE WAS OVER THE WA/OR WATERS...W/A
STATIONARY FRONT ACROSS THE NRN CA WATERS. A WEAK HIGH PRES RIDGE
WAS OVER THE REST OF THE CENTRAL/SRN CA WATERS. UPDATED GRIDS
THROUGH ABOUT WED 18Z W/06Z GFS TO HAVE A BIT OF NEW DATA FOR THE
INTERMEDIATE FORECAST UPDATE. OTHERWISE NO MAJOR CHANGES TO THE
FORECAST IN PLACE GIVEN 06Z GFS WAS IN GOOD AGREEMENT W/THE 00Z
GLOBAL MODELS IN THE SHORT TERM.

-----------------------------------------------------------------
PREVIOUS DISCUSSION...

A CD FNT HAS MOVD E OF THE ERN WA/OR AND OVR NRN CA WTRS AND IS
NOW MOVG SLOWLY SE OVR THE NRN AND CNTRL CA WTRS. LOW PRES WAS W
OF THE CNTRL AND SRN CA WTRS ALG THE FNT AND SHUD DRIFT EWD TDA
AND TNGT. BOTH THE GFS AND UKMET SHOWING MARGINAL GALES DVLPG OVR
THE W AND NW QUADS OF THE LOW PRES WHICH GRADUALLY APPROACHES THE
SRN CA WTRS ALTHO WITH SUBGALE WINDS. ELSW OVR THE ERN AREAS OF
THE NRN CA WTRS WED THE GFS SHOWS PTNL GALES WHILE THE UKMET/ECMWF
HAV WINDS TO 30 KT. PLAN TO CONT WITH WINDS TO 30 KT OVR THIS
AREA. THE AREA OF HIGH PRES TO THE W OF THE WTRS SLOWLY DRIFTS EWD
TOWARDS THE OFFSHR WTRS THU AND FRI. THE COASTAL TROF ALG CA
SLOWLY DVLPS DURING THIS PD OF TIME. PLAN TO HAV WINDS TO 35 KT
OVR THE REGION OF STGST PRES GRAD USING THE GFS/UKMET/ECMWF WHICH
WL BE ALG OR NR THE ERN NRN CA WTRS LATER THU INTO FRI. THE AREA
OF HIGH PRES SHIFTS TO THE W OR NW LATER FRI NGT THRU SAT NGT WITH
SUBGALE WINDS DURING THIS PD OF TIME. OVERALL PLAN TO USE THE GFS
FOR THE GRIDS WITH ENHANCEMENT OR STRENGTHENING OF WINDS LATER ON
THU AND INTO FRI.

SEAS...AS WAS DONE WITH GRIDS EARLIER WL CONT TO BLEND 50/50 THE
WWIII WITH THE ECMWF WAM THRU THE FCST PD. THE ECMWF WAM CONTS TO
HIGHER WITH SEAS WED NGT INTO THU AND THRU FRI.


.EXTRATROPICAL STORM SURGE GUIDANCE...N/A.


.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
     NONE.

.PZ6 CALIFORNIA WATERS...
.PZZ820...INNER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE POSSIBLE THU INTO FRI.

$$

.FORECASTER HOLLEY/ROWLAND. OCEAN PREDICTION CENTER.



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