Marine Interpretation Message
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008
AGPN40 KWNM 080928
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
128 AM PST THU DEC 8 2016

.FORECAST DISCUSSION...Major features/winds/seas/significant
.weather for the North Pacific N of 30N and E of 150W.

The ascat pass from 04z shows mainly E winds 20-30 kt across the
offshore waters N of 40N...with generally winds 20 kt or less S of
40N. The main low center appears to be near 46N141W with gale
conditions occuring mainly over the NE and SW quadrants of the
system. The 00Z global models are in somewhat better agreement
today than last night at this time...althought thats not saying
much considering how widely different the solutions were last
night. The GFS solution continues to forecast a more consolidated
low center over the next 48 hrs...while the ECMWF is slower to
consolidate the two lows into a single center. At 48 hours however
both the GFS and ECMWF are forecasting a low center near the NW
corner of the washington waters with similar pressures...although
the ECMWF also as a secondary low well NW of the main
center...while the GFS is showing one low at that time. The CMC is
in very good agreement with that location as well...while the
UKMET is further W. I will continue the previous trends and
populate the wind grids using the GFS throughout the forecast
period. It doesnt appear that storm warnings will be needed as the
strongest winds should remain W of the offshore waters.

Seas...Both the WAM and ENP initialized well across the region.
Will populate the wave grids using a blend consisting of two
thirds ENP and one third WAM throughout the week.

Extratropical storm surge guidance...The ETSS and ESTOFS indicate
similar surge forecasts over the next 72 hours along the pacific
NW associated with the strong low that will be approaching the
region although the ESTOFS indicates slightly higher wave values
between 0 and 1 FT which seems reasonable.

.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
.PZZ800...Inner Waters from Cape Flattery to Cape Shoalwater...
     Gale today into tonight.
     Gale Friday night.
     Gale Possible Saturday.
.PZZ900...Outer Waters from Cape Flattery to Cape Shoalwater...
     Gale today into Friday night.
     Gale Possible Saturday.
.PZZ805...Inner Waters from Cape Shoalwater to Cape Lookout...
     Gale today into tonight.
     Gale Friday night.
     Gale Possible Saturday.
.PZZ905...Outer Waters from Cape Shoalwater to Cape Lookout...
     Gale today.
     Gale Friday into Friday night.
     Gale Possible Saturday.
.PZZ810...Inner Waters from Cape Lookout to Florence OR...
     Gale Friday into Friday night.
     Gale Possible Saturday.
.PZZ910...Outer Waters from Cape Lookout to Florence OR...
     Gale Friday into Friday night.
     Gale Possible Saturday.
.PZZ815...Inner Waters from Florence OR to Point St. George...
     Gale Friday.
.PZZ915...Outer Waters from Florence OR to Point St. George...
     Gale Friday.

.PZ6 California Waters...
.PZZ820...Inner Waters from Point St. George to Point Arena...
     Gale today.

$$

.Forecaster Shaw. Ocean Prediction Center.



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