Marine Interpretation Message
Issued by NWS

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AGPN40 KWNM 302017
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
117 PM PDT SAT APR 30 2016

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

ASCAT PASS FROM 17Z INDICATES WINDS E OF 125W TO 30 KT. AN
ALTIMETER PASS FROM 17Z. JUST W OF THE OFFSHORE WATERS SHOWS MAX
SEAS TO 9 FT W OF THE CENTRAL CA WATERS. THE OVERALL FCST PATTERN
HASNT CHANGED MUCH FROM THE PRV MODEL RUNS. THE 12Z GLOBAL MODELS
ARE IN VERY GOOD AGREEMENT THROUGH MON...THEN BEGIN TO DIVERGE A
BIT FROM MON NIGHT ONWARD. THE MOT NOTABLE DIFFERENCE WILL OCCUR W
OF THE CA WATERS. THE UKMET/ECMWF KEEP AN AREA OF LOW PRES W OF
THE WATERS WHILE THE GFS IS FURTHER E. WILL MAINTAIN CONTINUIY AND
USE THE ECMWF LATER IN THE WEEK. WILL POP THE WIND GRIDS USING
THE 30M GFS THROUGH 21Z MON...THEN TRANSITION TOWARD THE ECMWF FOR
THE REMIANDER OF THE 7 DAYS. THE RIDGE/TROF COMBINATION ACROSS THE
EPAC WILL GRADUALLY WEAKEN OVERNIGHT CAUSING THE GALES TO
DIMINISH.

SEAS...BOTH THE ENP AND WAM INITIALIZED WELL. WILL POP THE WAVE
GRIDS USING A 50/50 BLEND OF THE TWO MODELS THROUGH 21Z MON...THEN
TRANSITION TOWARD THE WAM FOR THE REMAINDER OF THE PERIOD.

.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 TODAY INTO TONIGHT.
.PZZ920...OUTER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE TODAY INTO TONIGHT.
.PZZ825...INNER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE TODAY INTO TONIGHT.
.PZZ925...OUTER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE TODAY INTO TONIGHT.
.PZZ830...INNER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE TODAY.

$$

.FORECASTER SHAW. OCEAN PREDICTION CENTER.



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