Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 230804
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
104 AM PDT SAT JUL 23 2016

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

00Z GLOBAL MODELS REMAIN IN GOOD AGREEMENT THROUGH THE FORECAST
PERIOD. WILL POPULATE WIND GRIDS WITH 10M WINDS FROM THE
GFS...WITH A FEW ADJUSTMENTS IN THE NRN CALIFORNIA WATERS IN THE
TUE AND WED TIME FRAME.

NO SIGNIFICANT DIFFERENCES NOTED IN THE MODELS...AND HAVE BEEN IN
GOOD AGREEMENT WITH THE OVERALL PATTERN OVER THE PAST SEVERAL
NIGHTS. EPAC HIGH SETS UP NW OF THE AREA...AS THE COASTAL TROUGH
INTENSIFIES NEAR CALIFORNIA TODAY AND TONIGHT. THIS PATTERN
EXPECTED TO PERSIST THROUGH THE REMAINDER OF THE FORECAST
PERIOD...WITH THE CHANCE OF GALES EACH DAY. AS IN PREVIOUS
NIGHTS...GREATEST CHANCES OF GALES WILL BE LIMITED TO THE COASTAL
WATERS THROUGH AT LEAST MON NIGHT. FOR TUE AND TUE NIGHT...CHANCES
INCREASE SOMEWHAT FOR GALES TO MOVE INTO THE ADJACENT OFFSHORE
WATERS OFF PT ARENA. AS IN PREVIOUS NIGHTS...ONLY THE GFS 30M
WINDS ARE PRODUCING GALES IN THE OFFSHORE WATERS...WITH THE ECMWF
AND THE UKMET CAPPING WINDS TO 30 KT...AS WELL AS THE GFS 10M
WINDS. CONFIDENCE REMAINS LOW IN GALES REACHING THE OFFSHORE
WATERS DUE TO STABILITY ISSUES TUE AND TUE NIGHT...BUT WILL KEEP
MENTION OF THEM IN THE FORECAST FOR NOW. CONFIDENCE IS GREATER IN
GALES REACHING THE OFFSHORE WATERS FOR WED AND WED NIGHT AS THE
GFS 10M WINDS DO INDICATE GALES REACHING THE AREA...AND OF COURSE
WILL KEEP MENTION OF GALES IN THE FORECAST.

.SEAS...ENP VERSION OF WWIII WITHIN A FT OR TWO OF CURRENT OBS.
WILL POPULATE WAVE GRIDS FROM 00Z ENP THROUGH THE FORECAST PERIOD.
NO SIGNIFICANT DIFFERENCES NOTED IN THE MODEL FROM PREVIOUS
RUNS...AND IS CLOSE TO THE PREVIOUS FORECAST.

.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 TUE INTO WED NIGHT.

$$

.FORECASTER ACHORN. OCEAN PREDICTION CENTER.


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