Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 192109
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
109 PM PST FRI DEC 19 2014

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

THE VERY FAST PROGRESSIVE FLOW WILL PERSIST ACROSS THE EPAC N OF
40N DURING THE NEXT COUPLE OF DAYS BEFORE A RIDGE BUILDS ACROSS
THE REGION. SAT PIX INDICATE THE NEXT FRONTAL BNDRY NEAR 140W
ATTM. GIVEN THE PROGRESSIVE PATTERN IT IS UNDERSTANDABLE THAT
THERE ARE SOME DIFFERENCES AMONG THE 12Z GLOBAL MODELS...AND THAT
IS THE CASE HERE. THROUGH TONIGHT I WILL POP THE WAVE GRIDS USING
THE ECMWF...WHICH IS DOING A BETTER JOB HANDLING THE INITIAL SWELL
CROSSING THE WATERS. AFTER 12Z SAT THE WW3 SEEMS REASONBLE GIVEN
THE PATTERN AND WILL BY MY MODEL OF CHOICE. IN ORDER TO KEEP SOME
CONTINUITY I WILL POP THE WIND GRIDS USING THE 10M GFS...WITH SOME
ENHANCEMENT AS FRONT PINCHES THE CST. THE 12Z ECMWF APPEARS TO
HAVE CHANGEED FROM THE PRV RUN AND NOW INDICATES A STRONG LOW
MOVING TOWARD VANISL SAT. PREFER THE WEAKER GFS...WHICH IS SIMILAR
TO THE PRIOR RUN. NOT MANY CHANGES EXPECTED ACROSS THE CA WATERS
AS RIDGE HOLDS FIRM EARLY IN PERIOD...THEN COASTAL TROF FORMS
ALONG THE CENTRAL CST.

.EXTRATROPICAL STORM SURGE GUIDANCE...NA.

.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
.PZZ800...INNER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE TONIGHT.
.PZZ900...OUTER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE TONIGHT.
.PZZ805...INNER WATERS FROM CAPE SHOALWATER TO CAPE LOOKOUT...
     GALE TONIGHT.
.PZZ905...OUTER WATERS FROM CAPE SHOALWATER TO CAPE LOOKOUT...
     GALE TONIGHT.
.PZZ810...INNER WATERS FROM CAPE LOOKOUT TO FLORENCE OR...
     GALE TONIGHT.
.PZZ910...OUTER WATERS FROM CAPE LOOKOUT TO FLORENCE OR...
     GALE TONIGHT.
.PZZ815...INNER WATERS FROM FLORENCE OR TO POINT ST. GEORGE...
     GALE TONIGHT.

.PZ6 CALIFORNIA WATERS...
     NONE.

$$

.FORECASTER SHAW. OCEAN PREDICTION CENTER.


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