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AGPN40 KWNM 250913

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
213 AM PDT Sun Jun 25 2017

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

The ASCAT pass from 06Z shows mainly light winds across much of
the California offshore waters, except the far SE portion which
still has winds 20-25 kt South of point Conception. Further North
over the PZ5 waters winds are mainly out of the N at 15-20 kt,
except for southeastern Oregon waters where light winds prevail.
An altimeter pass from 04Z indicates seas are generally 7 ft or
less over much of the offshore waters. The 00Z global models
continue to be in excellent agreement during the upcoming week.
There is a very minor difference later in the forecast period
between the GFS and the European models. The GFS is slightly
faster with a frontal passage across the Washington and Oregon
waters than the ECMWF, which holds the ridge over the region
longer. This difference is very minor however as the winds remain
light. I will populate the wind grids using the 10M GFS through
06Z Thursday, then transition to the ECMWF for the remainder of
the forecast period.

Seas...Both the ENP and WAM offer similar solutions over the next
7 days, and both appear reasonable. I will populate the wave
grids to match the wind grids. During the period I am using the
GFS I will use the corresponding ENP, and the same goes with the

Extratropical Storm Surge Guidance: n/a.


.PZ5 Washington/Oregon Waters...

.PZ6 California Waters...


.Forecaster Shaw. Ocean Prediction Center. is the U.S. government's official web portal to all federal, state and local government web resources and services.