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NOAA>NWS>NCEP>OPC>Marine>Pacific>Offshore>North Pacific Marine Weather Discussion

North Pacific Marine Weather Discussion

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AGPN40 KWNM 270915

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
215 AM PDT Sat May 27 2017

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

The most recent altimeter passes indicates the seas across the
offshore waters are running 4-9 ft. The 00Z global models are in
very good agreement through at least the first 3 days as the 
gradient continues to relax over the region and high pressure 
builds across the area. A low pressure trough along the 
California coast will strengthen on days 2 and 3, causing winds 
to increase to 25 kt over the inner California waters, mainly 
along the central and southern California coast. The ECMWF and 
UKMET are more progressive across the PZ5 waters than the GFS 
after day 3. This is a change from yesterday when the GFS was 
more progressive later in the week. In either case the pattern 
across the offshore waters will remain quiet as the winds over 
the Washington and Oregon waters will be hard pressed to exceed 
15 kt with minimal seas. Further South the dominate feature will 
be the Low pressure trough expected to strengthen along the 
California coast while high pressure continues West of the 
waters. I will maintain forecast continuity from yesterday and 
populate the wind grids using the GFS, either the 10M or 30M 
depending on the stability profile.

Seas...both the ENP and WAM initialized pretty good across the 
region. Will populate the wave grids using a 50/50 blend of the 
two wave models,

.Extratropical Storm Surge Guidance...N/A.


.PZ5 Washington/Oregon Waters...

.PZ6 California Waters...


.Forecaster Shaw. Ocean Prediction Center.

NOAA/ National Weather Service
National Centers for Environmental Prediction
NOAA Center for Weather and Climate Prediction (NCWCP)
Ocean Prediction Center
Mr. Darin Figurskey
Chief, Ocean Forecast Branch
5830 University Research Court
College Park, Maryland 20740-3818

Phone: 301-683-1520
Fax: 301-683-1501 (SDM), 301-683-1545 (back office-administrative)

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