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 170837
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
1237 AM PST Sun Dec 17 2017

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

Strong high pressure west of the northern pz6 waters continues
to combine with a low pressure trof along the California coast to
produce north to northwest winds up to 40 knots across portions
of the pz6 waters. These conditions will diminish later tonight
and Sunday as the coastal trof begins to weaken. By late Monday
mainly light winds are expected across most of the pz6 waters. A
cold front is still expected to move into the pz6 waters from the
northwest by late Tuesday, then move into the southern pz6
waters by late Wednesday. Winds behind this front are still
expected to be as high as 30 knots across the offshore waters.
Conditions will then diminish again by Thursday. Farther north, a
warm front will move across the pz5 waters tonight, followed by
a cold front Sunday night. Low pressure will then move across the
pz5 waters Monday night and Tuesday with gale force winds still
expected. The latest runs of the gfs and ecmwf look to be in
reasonable agreement across the eastern Pacific through Thursday.
For wind grids will use the gfs winds throughout. Current
warnings look reasonable and few changes should be needed on the
next offshore waters forecast.

For wave height grids will also use the ww3 throughout the
forecast period.

Extratropical storm surge guidance...n/a.


.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
.PZZ800...Inner Waters from Cape Flattery to Cape Shoalwater...
     Gale Possible Tuesday into Wednesday.
.PZZ900...Outer Waters from Cape Flattery to Cape Shoalwater...
     Gale Possible Tuesday night into Wednesday.
.PZZ805...Inner Waters from Cape Shoalwater to Cape Lookout...
     Gale Possible Tuesday into Wednesday.
.PZZ905...Outer Waters from Cape Shoalwater to Cape Lookout...
     Gale Possible Tuesday into Wednesday.
.PZZ810...Inner Waters from Cape Lookout to Florence OR...
     Gale Possible Tuesday.
.PZZ910...Outer Waters from Cape Lookout to Florence OR...
     Gale Possible Tuesday.
.PZZ815...Inner Waters from Florence OR to Point St. George...
     Gale Possible Tuesday.
.PZZ915...Outer Waters from Florence OR to Point St. George...
     Gale Possible Tuesday.

.PZ6 California Waters...
.PZZ825...Inner Waters from Point Arena to Pigeon Point...
     Gale today.
.PZZ830...Inner Waters from Pigeon Point to Point Piedras Blancas...
     Gale today.
.PZZ930...Outer Waters from Pigeon Point to Point Piedras Blancas...
     Gale today.

$$

.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.