Marine Interpretation Message
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
AGPN40 KWNM 180815
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
115 AM PDT Thu Jul 18 2019

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

High pressure currently centered well west of the pz6 waters
continues to combine with inland low pressure to produce
northwest winds up to 25 knots off the coasts of northern and
central California with the strongest conditions west of Point
Arena. These conditions will increase and by Thursday night winds
up to 35 knots are expected west of Point St George. These
conditions will then continue Friday and Friday night, and then
begin to diminish by Saturday. North to northwest winds up to 25
knots or so will then continue off of northern California into
Monday. The latest runs of the gfs and ecmwf look to be in
reasonable agreement across the eastern Pacific through Saturday.

By Saturday night and Sunday the ecmwf is less progressive than
the gfs in moving weak low pressure just northwest of the pz5
waters, but at this time will go ahead and favor the gfs
solution. Winds with this low are expected to be as high as 25
knots. For wind grids will use the gfs winds throughout. Only
change to warnings with this package will be to add gales to the
far southeast Oregon offshore waters by Friday night. Otherwise,
few changes should be needed on the next offshore waters
forecast.

For wave height grids will also use the wavewatch model
throughout the forecast period.

Extratropical storm surge guidance...n/a.


.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
.PZZ815...Inner Waters from Florence OR to Point St. George...
     Gale Friday night.

.PZ6 California Waters...
.PZZ820...Inner Waters from Point St. George to Point Arena...
     Gale Friday into Friday night.

$$

.Forecaster Nolt. Ocean Prediction Center.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.