Skip Navigation Links  
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
Ocean Prediction Center
Local forecast by
"City, St" or "ZIP"


NCEP Newsletter

Marine Weather
  OPC Products
  Atlantic | Pacific
  Mobile | RSS XML/RSS logo
  Special Support
  GRIB/GRIB2 data
  Product Guides
  Product Archive
  Fax Schedules
  Marine Weather Sites
  Quality Control
  Satellite Imagery

Ocean Products

Coastal Guidance

Probabilistic Guidance

Prediction Guidance


About Us

Contact Us

All OPC Social Media Feeds
Follow the Ocean Prediction Center on Facebook Follow the Ocean Prediction Center on Twitter
            Subscribe to the Ocean Prediction Center on YouTube is the U.S. government's official web portal to all federal, state and local government web resources and services.

OPC is updating its website format and changing its URL to on August 30, 2017. You may view the preview site at and submit comments here. Please see the offical Service Change Notice for more information.

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

North Pacific Marine Weather Discussion

[Printable Version]   [Alt Link/Previous Versions]   [Glossary]
AGPN40 KWNM 271516

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
816 AM PDT Thu Jul 27 2017

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

A very typical summer time pattern will prevail across the E
Pacific over the next several days. Combination of coastal low
pressure trough and E Pacific high pressure will generate
persistent n-ly winds over the OPC offshore waters. Should any
gales occur, best chance remains confined to within 60 nm of the
coast from near Cape Mendocino north to Point St George late in
the weekend. 

Overall models remain in great agreement, see no reason to make
any changes to the ongoing forecast (00z GFS) already in place. 


The latest surface analysis indicates that a high pressure ridge
west of the pz6 waters continues to combine with an inland low 
pressure trof to produce northwest winds up to 25 knots or so 
across portions of the northern and central pz6 waters. By late 
Thursday winds are expected to increase to 30 knots with the 
strongest conditions west of Point Arena. These conditions will 
continue into Friday and then the strongest conditions will shift
farther north to off of Point Saint George by late Saturday. 
Winds up to 30 knots are still expected across the offshore 
waters by late Saturday with stronger conditions possible in the 
coastal waters. These conditions will then remain in place 
through Monday. Farther north, a weakening cold front will 
approach the pz5 waters by Friday night and then dissipate by 
Saturday. The latest runs of the gfs and ecmwf look to be in
reasonable agreement across the eastern Pacific through Monday.
For wind grids will use the gfs 10m winds throughout. Current 
forecast looks reasonable and will continue to carry no warnings 
across the offshore waters during the forecast period.

The nww3 looks reasonable with the seas and will be followed
fairly closely during the forecast period.

Extratropical storm surge guidance...n/a.


.PZ5 Washington/Oregon Waters...

.PZ6 California Waters...


.Forecaster Collins/Nolt. 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)

Information Quality
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities

Page last modified:  Monday, July 25, 2016 12:56:02 UTC