Marine Interpretation Message
Issued by NWS

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AGPN40 KWNM 301915
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1215 PM PDT MON MAR 30 2015

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

SUMMARY...A COLD FRONT WILL PASS E ACROSS THE PZ5 AND NRN PZ6 WTRS
EARLY TONITE...THEN MOVE SE OVER THE CNTRL AND SRN PZ6 WTRS LATER
TONITE AND TUE. A LOW PRES TROF WILL MOVE E ACROSS THE PZ5 WTRS
TUE INTO WED. ANOTHER COLD FRONT WILL MOVE E OVER THE PZ5 AREA THU
NITE AND FRI. A LOW PRES TROF WILL FORM NEAR THE CALIF COAST TUE
NITE...PERSIST INTO FRI...THEN WEAKEN LATE FRI AND FRI NITE.
OTHERWISE...HI PRES RIDGING WILL PREVAIL OVER THE OFSHR WTRS
DURING THE FCST PRD.

MODELS...THE 12Z MED RNG MDLS ARE IN VRY GUD OVERALL AGREEMNT
THRU THE FCST PRD...EXCEPT THE 12Z GFS IS ABOUT 200 NM N AND NE
OF THE OTHER MDLS WITH A LOW MOVG SE TOWARDS THE PZ5 AREA LATE FRI
THRU SAT NITE. WILL USE THE 12Z GFS 30M SOLN TO POPULATE THE WIND
GRIDS FOR TODAY INTO FRI...THEN GO WITH THE MORE REPRESENTATIVE
12Z ECMWF FOR LATE FRI THRU SAT NITE.

.SEAS...12Z MULTIGRID WW3 AND 12Z ECMWF WAM INTIALIZED WELL OVER THE
AREA...AND THE MDLS ARE IN VRY GUD AGREEMNT ACROSS THE OFSHR WTRS THRU
THU NITE...SO WILL USE THE ENP VERSION OF THE 12Z MWW3 FOR THE SEA
HTS GRIDS FOR TONITE THRU THU NITE. THE 12Z MWW3 BECOMES SEVERAL
FEET HIGHER THAN THE 12Z ECMWF OVER THE PZ5 AREA FOR FRI THRU SAT
NITE...AND WILL GO WITH A 50/50 BLEND OF THE MDLS FOR THIS
TIMEFRAME BECAUSE AM USING THE 12Z ECMWF FOR THE WIND GRIDS.

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

.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
     NONE.

.PZ6 CALIFORNIA WATERS...
.PZZ825...INNER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE TUE NIGHT.
     GALE POSSIBLE WED NIGHT.
.PZZ830...INNER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE TUE NIGHT.
     GALE POSSIBLE WED NIGHT.
.PZZ930...OUTER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE POSSIBLE WED NIGHT.
.PZZ835...INNER WATERS FROM POINT PIEDRAS BLANCAS TO SANTA CRUZ ISLAND, CA...
     GALE TUE INTO TUE NIGHT.
     GALE POSSIBLE WED INTO WED NIGHT.
.PZZ935...OUTER WATERS FROM POINT PIEDRAS BLANCAS TO SANTA CRUZ ISLAND, CA...
     GALE POSSIBLE WED NIGHT.
.PZZ840...INNER WATERS FROM SANTA CRUZ ISLAND, CA TO SAN CLEMENTE ISLAND, CA...
     GALE TUE INTO TUE NIGHT.
     GALE POSSIBLE WED INTO WED NIGHT.
.PZZ940...OUTER WATERS FROM SANTA CRUZ ISLAND, CA TO 120W...
     GALE POSSIBLE WED NIGHT.
.PZZ945...OUTER WATERS FROM 120W TO SAN CLEMENTE ISLAND, CA...
     GALE POSSIBLE WED NIGHT.

$$

.FORECASTER SCOVIL. OCEAN PREDICTION CENTER.


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