marine weather discussion for N Pacific Ocean NWS ocean prediction center Washington DC 126 am PDT sun Aug 19 2018
.Forecast discussion...Major features/winds/seas/significant .Weather for the North Pacific N of 30n and E of 150w.
There was an ascat pass at 06z with a swath across much of the offshore waters with the exception of the ern areas of the srn CA waters. Winds were to 30 kt over the far nrn WA waters associated with a trof along Vancouver Island. Elsewhere in association with the trof over inland CA and near the N CA coast winds were to 25 kt in the inner offshore waters and to 30 kt over the coastal areas.
High pressure remains centered to the W of the N and central areas of the offshore waters early this morning while a trof persisted along inland areas of CA with another trof over Vancouver Island. Moderate winds were across much of the nrn and central areas of the offshore waters and as stated above the strongest winds were near the Vancouver Island and near the nrn CA coast.
Model guidance maintains the high pressure to the W of the offshore waters through Mon with moderate nly winds to at least 25 kt through early Mon for most of the nrn and central areas of the offshore waters. Coastal trof along CA weakens during this time. Afterwards the high pressure moves SW and away from waters Mon night into Tue. The UKMET/GFS/ECMWF do show the coastal trof redeveloping near Vancouver Island late Tue into Wed as a weakening cold front moves se over the WA/OR waters. A large area of high pressure rebuilds into the waters Wed through Thu night.
Seas...the wwiii enp and ECMWF wam are in close agreement initially this morning and through the forecast period. Plan to stay with a 50/50 blend of these models through Thu night.
.Extratropical storm surge guidance...N/A.
.Pz5 Washington/Oregon waters... None.
.Pz6 California waters... None.
.Forecaster Rowland. Ocean prediction center.