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
000
AGPN40 KWNM 200828
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
1228 AM PST FRI JAN 20 2017

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

Summary...00z opc surface analysis shows a strong low centered w
of the pz5 area near 46n142w, with an associated occluded front
arcing se from the low and over the srn pz5 waters, then becoming
a cold front and arcing to the s and sw over the nrn pz6 waters.
Latest available ascat passes from earlier tonight show 25 to 30
kt winds in s to se flow over the nrn california and oregon
waters, with winds to 20 kt over the nrn oregon and central
california waters. Lightning density product data at 0720z shows
areas of scattered showers and isolated tstms over the nrn pz6
waters.

Models...The 00z medium range models are in very good overall
agreement across the coastal/offshore waters for today into early
sat, so the representative 00z gfs 30m will be used for the wind
grids for this timeframe. The models diverge concerning their
handling of a strong low moving over the offshore waters later sat
through mon night, with the 00z gfs taking the low more to the nw
and the 00z ukmet taking it more to the se. The 00z ecmwf looks
like a good comprimise between the 00z gfs/ukmet models, has been
consistent, and has good support from the 00z gem, so the 00z ecmwf
will be used for later sat through the rest of the forecast
period for the wind grids.

Seas...The 00z enp wavewatch initialized well over the coastal
and offshore waters, and will be used for the sea height grids for
today into early sat in order to be consistent with the preferred
00z gfs solution. Then will use the 00z ecmwf wam for later sat
through the rest of the forecast period, in order to be consistent
with the preferred 00z ecmwf for this timeframe.

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

.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
.PZZ800...Inner Waters from Cape Flattery to Cape Shoalwater...
     Gale today.
     Gale Possible Sunday.
.PZZ900...Outer Waters from Cape Flattery to Cape Shoalwater...
     Gale today.
     Gale Possible Sunday.
.PZZ805...Inner Waters from Cape Shoalwater to Cape Lookout...
     Gale today.
     Gale Saturday night.
     Gale Possible Sunday.
.PZZ905...Outer Waters from Cape Shoalwater to Cape Lookout...
     Gale today.
     Gale Saturday into Saturday night.
     Gale Possible Sunday.
.PZZ810...Inner Waters from Cape Lookout to Florence OR...
     Gale today.
     Storm Saturday night.
     Gale Possible Sunday.
.PZZ910...Outer Waters from Cape Lookout to Florence OR...
     Gale tonight into Saturday.
     Storm Saturday night.
     Storm Possible Sunday.
     Gale Possible Sunday night.
.PZZ815...Inner Waters from Florence OR to Point St. George...
     Gale today.
     Storm Saturday night.
     Gale Possible Sunday.
.PZZ915...Outer Waters from Florence OR to Point St. George...
     Gale today into Saturday.
     Storm Saturday night.
     Gale Possible Sunday into Monday.

.PZ6 California Waters...
.PZZ820...Inner Waters from Point St. George to Point Arena...
     Gale today into Saturday.
     Storm Saturday night.
     Gale Possible Monday into Monday night.
.PZZ920...Outer Waters from Point St. George to Point Arena...
     Gale today into Saturday.
     Storm Saturday night.
     Gale Possible Sunday into Monday night.
.PZZ825...Inner Waters from Point Arena to Pigeon Point...
     Gale today into tonight.
     Gale Saturday night.
     Gale Possible Monday into Monday night.
.PZZ925...Outer Waters from Point Arena to Pigeon Point...
     Gale today into Saturday night.
     Gale Possible Sunday night into Monday night.
.PZZ830...Inner Waters from Pigeon Point to Point Piedras Blancas...
     Gale today into tonight.
     Gale Saturday night.
     Gale Possible Monday night.
.PZZ930...Outer Waters from Pigeon Point to Point Piedras Blancas...
     Gale today into tonight.
     Gale Saturday night.
     Gale Possible Monday into Monday night.
.PZZ835...Inner Waters from Point Piedras Blancas to Santa Cruz Island, CA...
     Gale today into tonight.
     Gale Possible Monday night.
.PZZ935...Outer Waters from Point Piedras Blancas to Santa Cruz Island, CA...
     Gale today into tonight.
     Gale Saturday night.
     Gale Possible Monday night into Tuesday.
.PZZ840...Inner Waters from Santa Cruz Island, CA to San Clemente Island, CA...
     Gale today into tonight.
.PZZ940...Outer Waters from Santa Cruz Island, CA to 120W...
     Gale today into tonight.
.PZZ945...Outer Waters from 120W to San Clemente Island, CA...
     Gale today into tonight.

$$

.Forecaster Scovil. 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.