AGPN40 KWNM 201456
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
656 AM PST Tue Feb 20 2018

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

Model guidance has not changed much since the previous forecast,
with a high pressure ridge persisting to the west of the waters
and a series of shortwaves moving across the offshore waters. 
Timing appears to be fairly well handled by the models with 
intensity of the winds being the main differences. Feel confident
continuing the previous forecast with a few minor tweaks in the 
earliest periods. 

-----------------------------------------------------------------
PREVIOUS DISCUSSION...

The ASCAT pass from 05Z shows the strongest winds occurring over
the central California waters, with gale conditions found in the
coastal zones W of Point Reyes. Several altimeter passes during
the past several hours indicate seas to 20 ft across the inner
offshore waters W of Point Conception. The overall forecast
philosophy hasn't changed much over the past several days as the
overall pattern remains stable. A high pressure ridge will
persist W of the waters allowing a series of short-waves to dig
SE across the offshore waters during the upcoming week. For the
most part the 00Z global models are in pretty good agreement with
only minor differences in the area of maximum winds. I decided to
use a blend when populating the grids. I used a blend of 66/33
GFS 10/30M/ECMWF.

Seas...both the ENP and WAM initialized well across the waters,
although the WAM was slightly better and showed higher seas
initially across the central and southern California waters than
the ENP did. I used a similar blend to match the wind grids two
thirds ENP to one third WAM.

.EXTRATROPICAL STORM SURGE GUIDANCE...N/A.


.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
.PZZ900...Outer Waters from Cape Flattery to Cape Shoalwater...
     Gale Possible Saturday into Saturday night. 

.PZ6 California Waters...
.PZZ820...Inner Waters from Point St. George to Point Arena...
     Gale Possible Thursday night.
.PZZ825...Inner Waters from Point Arena to Pigeon Point...
     Gale Possible Thursday night.

$$

.Forecaster Sommerville/Shaw. Ocean Prediction Center.
Last Update:14:57Z, 20 February 2018
Updates: Four times per day

FZPN25 KWBC 202159
OFFPZ5

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
159 PM PST Tue Feb 20 2018

Washington and Oregon waters-
Inner waters from  60 nm to 150 nm offshore.
Outer waters from 150 nm to 250 nm offshore.

Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

PZZ898-211030-
159 PM PST Tue Feb 20 2018

.SYNOPSIS FOR WASHINGTON AND OREGON WATERS...Weak low pressure
will track S over the southern waters tonight. A low pressure 
trough will remain along the Washington and Oregon coasts Wed and
Wed night. A high pressure ridge will build across the area from
the W Thu. A trough will expand S into the waters Thu night 
through Sat night. A weak cold front will move across the area
Sat night and Sun. An associated low pressure will move into the
northern waters late Sun night.

$$

PZZ800-211030-
Cape Flattery to Cape Shoalwater between 60 nm and 150 nm
offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...NE winds 10 to 15 kt, becoming N to NE 10 to
20 kt. Seas 5 to 7 ft. Chance of rain. 
.WED...N to NE winds 5 to 15 kt, becoming NW. Seas 5 to 7 ft. 
.WED NIGHT...N to NW winds 20 to 30 kt. Seas 6 to 10 ft.
Scattered showers. 
.THU...N winds 15 to 25 kt, diminishing to 10 to 15 kt.
Seas 6 to 9 ft. Chance of rain. 
.THU NIGHT...N winds 10 to 15 kt, becoming W to NW 5 to 15 kt.
Seas 7 to 8 ft. 
.FRI...W winds 10 to 15 kt, increasing to 15 to 25 kt. Seas
7 to 9 ft. 
.FRI NIGHT...W winds 20 to 30 kt. Seas 9 to 13 ft. 
.SAT...NW winds 20 to 30 kt. Seas 12 to 17 ft. 
.SAT NIGHT...W to NW winds 20 to 30 kt. Seas 12 to 17 ft. 
.SUN...W to NW winds 20 to 30 kt. Seas 10 to 15 ft. 
.SUN NIGHT...W to SW winds 15 to 25 kt. Seas 12 to 16 ft. 

$$

PZZ900-211030-
Cape Flattery to Cape Shoalwater between 150 nm and 250 nm
offshore-
159 PM PST Tue Feb 20 2018

...GALE FORCE WINDS POSSIBLE SAT...

.TONIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. Chance of rain. 
.WED...NW winds 5 to 15 kt, increasing to 15 to 20 kt. Seas 5
to 7 ft. 
.WED NIGHT...N to NW winds 20 to 30 kt. Seas 6 to 10 ft. 
.THU...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.THU NIGHT...N to NW winds 10 to 15 kt, becoming W to NW. Seas
7 to 8 ft. 
.FRI...W winds 15 to 25 kt. Seas 7 to 10 ft. 
.FRI NIGHT...W to NW winds 25 to 30 kt. Seas 9 to 15 ft. 
.SAT...NW winds 25 to 30 kt, becoming 25 to 35 kt. Seas 12 to
19 ft. 
.SAT NIGHT...NW winds 25 to 35 kt, becoming W 20 to 25 kt. Seas
14 to 18 ft. 
.SUN...W to NW winds 20 to 30 kt. Seas 14 to 17 ft. 
.SUN NIGHT...W winds 20 to 30 kt, becoming NW. Seas 15 to 20 ft.

$$

PZZ805-211030-
Cape Shoalwater to Cape Lookout between 60 nm and 150 nm
offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...N winds 5 to 15 kt, increasing to 15 to 25 kt. Seas
6 to 8 ft. Chance of rain.  
.WED...N winds 10 to 20 kt, becoming N to NW 5 to 15 kt. Seas
6 to 8 ft. 
.WED NIGHT...NW winds 20 to 30 kt, becoming N. Seas 5 to 9 ft.
Scattered showers. 
.THU...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas
7 to 11 ft. Chance of rain. 
.THU NIGHT...N winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 7 to 8 ft. 
.FRI...W winds 5 to 15 kt, increasing to 15 to 20 kt. Seas 7 to
8 ft. 
.FRI NIGHT...W winds 20 to 25 kt. Seas 7 to 11 ft. 
.SAT...W winds 25 to 30 kt, becoming NW 20 to 25 kt. Seas 10 to
16 ft. 
.SAT NIGHT...W to NW winds 20 to 30 kt. Seas 12 to 17 ft. 
.SUN...W winds 20 to 30 kt. Seas 13 to 17 ft. 
.SUN NIGHT...W winds 15 to 25 kt. Seas 13 to 16 ft. 

$$

PZZ905-211030-
Cape Shoalwater to Cape Lookout between 150 nm and 250 nm
offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. Chance of rain.
.WED...N winds 10 to 20 kt, becoming NW. Seas 6 to 8 ft. 
.WED NIGHT...NW winds 20 to 30 kt, becoming N. Seas 6 to 9 ft. 
.THU...N winds 20 to 30 kt, diminishing to 15 to 20 kt. Seas
8 to 11 ft. 
.THU NIGHT...N winds 10 to 20 kt, becoming NW 5 to 10 kt. Seas
7 to 9 ft. 
.FRI...W winds 15 to 25 kt. Seas 7 to 8 ft. 
.FRI NIGHT...W to NW winds 20 to 25 kt. Seas 8 to 12 ft. 
.SAT...NW winds 25 to 30 kt. Seas 10 to 16 ft. 
.SAT NIGHT...W to NW winds 20 to 30 kt. Seas 15 to 17 ft. 
.SUN...W winds 25 to 30 kt. Seas 15 to 16 ft. 
.SUN NIGHT...W to NW winds 20 to 30 kt. Seas 15 to 20 ft. 

$$

PZZ810-211030-
Cape Lookout to Florence, OR between 60 nm and 150 nm offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...S winds 5 to 15 kt, becoming N 15 to 25 kt. Seas 6 to
9 ft. Chance of rain. 
.WED...N winds 15 to 25 kt. Seas 6 to 9 ft. 
.WED NIGHT...NW winds 10 to 20 kt, becoming N to NW 20 to 30 kt.
Seas 5 to 9 ft. Scattered showers. 
.THU...N winds 20 to 30 kt. Seas 7 to 12 ft. Chance of rain. 
.THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 7 to 10 ft. 
.FRI...W to NW winds 5 to 10 kt, becoming W 10 to 20 kt. Seas
7 to 8 ft. 
.FRI NIGHT...W winds 15 to 20 kt. Seas 7 to 9 ft. 
.SAT...W winds 20 to 25 kt. Seas 8 to 13 ft. 
.SAT NIGHT...W to NW winds 20 to 25 kt. Seas 11 to 16 ft. 
.SUN...W winds 20 to 30 kt. Seas 14 to 16 ft. 
.SUN NIGHT...W winds 15 to 25 kt. Seas 13 to 15 ft. 

$$

PZZ910-211030-
Cape Lookout to Florence, OR between 150 nm and 250 nm offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...N winds 20 to 30 kt. Seas 7 to 11 ft. Chance of rain.
.WED...N winds 15 to 20 kt, becoming N to NW 10 to 15 kt. Seas
6 to 9 ft. 
.WED NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 9 ft.
Scattered showers. 
.THU...N winds 20 to 30 kt. Seas 8 to 12 ft. 
.THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 8 to 10 ft. 
.FRI...W to NW winds 10 to 15 kt, becoming W 10 to 20 kt. Seas
7 to 8 ft. 
.FRI NIGHT...W to NW winds 15 to 25 kt. Seas 7 to 9 ft. 
.SAT...NW winds 20 to 25 kt. Seas 9 to 14 ft. 
.SAT NIGHT...W to NW winds 20 to 25 kt. Seas 12 to 16 ft. 
.SUN...W winds 20 to 25 kt. Seas 14 to 16 ft. 
.SUN NIGHT...W winds 20 to 25 kt. Seas 14 to 18 ft. 

$$

PZZ815-211030-
Florence, OR to Point St. George between 60 nm and 150 nm
offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...W to SW winds 10 to 20 kt, becoming N to NW 20 to
30 kt. Seas 6 to 9 ft. Chance of rain, then scattered showers. 
.WED...N winds 20 to 30 kt. Seas 7 to 10 ft. 
.WED NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 9 ft.
Scattered showers. 
.THU...NW winds 25 to 30 kt, becoming N 20 to 30 kt. Seas 7 to
13 ft. Chance of rain. 
.THU NIGHT...N winds 15 to 25 kt. Seas 7 to 12 ft.
.FRI...N winds 5 to 15 kt, becoming W. Seas 7 to 9 ft. 
.FRI NIGHT...W to NW winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...W to NW winds 15 to 25 kt. Seas 7 to 11 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 9 to 15 ft. 
.SUN...W winds 15 to 25 kt. Seas 12 to 15 ft. 
.SUN NIGHT...W winds 15 to 25 kt. Seas 12 to 15 ft. 

$$

PZZ915-211030-
Florence, OR to Point St. George between 150 nm and 250 nm
offshore-
159 PM PST Tue Feb 20 2018

.TONIGHT...W to NW winds 15 to 25 kt, becoming N 20 to 30 kt.
Seas 7 to 12 ft. Scattered showers. 
.WED...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.WED NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 9 ft. 
.THU...NW winds 20 to 30 kt, becoming N. Seas 8 to 13 ft. 
.THU NIGHT...N winds 15 to 25 kt. Seas 8 to 12 ft.
.FRI...NW winds 10 to 15 kt, becoming W to NW 10 to 20 kt.
Seas 7 to 9 ft. 
.FRI NIGHT...W to NW winds 15 to 20 kt. Seas 7 to 8 ft. 
.SAT...NW winds 15 to 25 kt. Seas 7 to 12 ft. 
.SAT NIGHT...NW winds 20 to 25 kt. Seas 10 to 15 ft. 
.SUN...W winds 20 to 25 kt. Seas 12 to 15 ft. 
.SUN NIGHT...W winds 20 to 25 kt. Seas 12 to 17 ft. 

$$

.Forecaster Sommerville. Ocean Prediction Center.
Last Update:22:01Z, 20 February 2018
Updates: Four times per day

FZPN26 KWBC 201515
OFFPZ6

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
715 AM PST Tue Feb 20 2018

California waters-
Inner waters from  60 nm to 150 nm offshore.
Outer waters from 150 nm to 250 nm offshore.

Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

PZZ899-210315-
715 AM PST Tue Feb 20 2018

.SYNOPSIS FOR CALIFORNIA WATERS...A low pressure trough along the
California coast will weaken today. Weak low pressure will move S
into the northern waters tonight, then dissipate along the
central California coast Wed. A trough will remain along the
coast Wed night, strengthen Thu, persist Thu night, then will
weaken Fri. The weak trough will remain along the California
coast Fri night, then diminish Sat as high pressure ridge builds
E into the central waters. A weak cold front will move S into the
northern waters Sat, then dissipate as it enters the central
waters Sat night. 

$$

PZZ820-210315-
Point St. George to Point Arena between 60 nm and 150 nm
offshore-
715 AM PST Tue Feb 20 2018

...GALE FORCE WINDS POSSIBLE THU NIGHT...

.TODAY...N to NW winds 10 to 20 kt, becoming W to NW. Seas
7 to 11 ft. 
.TONIGHT...W winds 10 to 20 kt, becoming N to NW. Seas 7 to
9 ft. Scattered showers. 
.WED...N winds 15 to 25 kt. Seas 7 to 11 ft. 
.WED NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.THU...N winds 20 to 30 kt. Seas 8 to 12 ft. 
.THU NIGHT...N winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 9 to 14 ft. 
.FRI...N winds 20 to 30 kt. Seas 8 to 14 ft. 
.FRI NIGHT...N to NW winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT...NW winds 10 to 15 kt, becoming W to NW 10 to 20 kt.
Seas 6 to 8 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 8 to 14 ft. 

$$

PZZ920-210315-
Point St. George to Point Arena between 150 nm and 250 nm
offshore-
715 AM PST Tue Feb 20 2018

.TODAY...W to NW winds 15 to 25 kt. Seas 8 to 11 ft. 
.TONIGHT...W to NW winds 15 to 25 kt, becoming N. Seas 8 to
12 ft. Scattered showers. 
.WED...N winds 15 to 25 kt. Seas 8 to 11 ft. 
.WED NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.THU...N winds 20 to 30 kt. Seas 8 to 11 ft. 
.THU NIGHT...N winds 20 to 30 kt. Seas 9 to 12 ft.
.FRI...N winds 15 to 25 kt. Seas 7 to 12 ft. 
.FRI NIGHT...N to NW winds 10 to 20 kt, becoming NW 10 to 15 kt.
Seas 7 to 9 ft. 
.SAT...NW winds 15 to 25 kt. Seas 7 to 9 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 8 to 14 ft. 

$$

PZZ825-210315-
Point Arena to Pigeon Point between 60 nm and 150 nm offshore-
715 AM PST Tue Feb 20 2018

...GALE FORCE WINDS POSSIBLE THU NIGHT...

.TODAY...N to NW winds 15 to 25 kt. Seas 9 to 13 ft. 
.TONIGHT...W to NW winds 10 to 20 kt, becoming W 10 to 15 kt.
Seas 7 to 9 ft. Scattered showers. 
.WED...N to NW winds 15 to 25 kt. Seas 6 to 10 ft. Scattered
showers. 
.WED NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.THU...N to NW winds 20 to 30 kt. Seas 9 to 11 ft. 
.THU NIGHT...N winds 30 to 35 kt, diminishing to 25 to 30 kt.
Seas 11 to 15 ft. 
.FRI...N winds 20 to 30 kt. Seas 9 to 15 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft. 
.SAT...N to NW winds 15 to 20 kt, becoming NW 10 to 15 kt. Seas
7 to 9 ft. 
.SAT NIGHT...NW winds 15 to 20 kt. Seas 7 to 9 ft. 

$$

PZZ925-210315-
Point Arena to Pigeon Point between 150 nm and 250 nm offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N winds 15 to 20 kt, becoming W to NW 10 to 20 kt.
Seas 9 to 13 ft. 
.TONIGHT...N to NW winds 15 to 25 kt. Seas 8 to 10 ft.
Scattered showers. 
.WED...N winds 15 to 25 kt. Seas 7 to 11 ft. 
.WED NIGHT...N winds 20 to 25 kt. Seas 8 to 10 ft. 
.THU...N winds 20 to 25 kt. Seas 8 to 11 ft. 
.THU NIGHT...N winds 20 to 30 kt. Seas 9 to 13 ft.
.FRI...N winds 20 to 30 kt. Seas 9 to 14 ft. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT...NW winds 10 to 15 kt. Seas 7 to 8 ft. 
.SAT NIGHT...NW winds 15 to 20 kt. Seas 7 to 9 ft. 

$$

PZZ830-210315-
Pigeon Point to Point Piedras Blancas between 60 nm and 150 nm
offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N winds 15 to 25 kt. Seas 10 to 14 ft. 
.TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 7 to 10 ft. Scattered showers. 
.WED...W to NW winds 10 to 20 kt, becoming N 5 to 15 kt. Seas
6 to 8 ft. Chance of showers. 
.WED NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 10 ft. 
.THU...N winds 20 to 25 kt, becoming NW 20 to 30 kt. Seas 8 to
12 ft. 
.THU NIGHT...NW winds 25 to 30 kt, becoming N. Seas 11 to 14 ft.
.FRI...N winds 20 to 30 kt. Seas 11 to 15 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 9 to 12 ft. 
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
7 to 9 ft. 
.SAT NIGHT...NW winds 15 to 20 kt. Seas 7 to 8 ft. 

$$

PZZ930-210315-
Pigeon Point to Point Piedras Blancas between 150 nm and 250 nm
offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N winds 10 to 20 kt. Seas 10 to 14 ft. 
.TONIGHT...NW winds 10 to 20 kt. Seas 8 to 10 ft. 
.WED...N to NW winds 15 to 25 kt. Seas 7 to 10 ft. Scattered
showers. 
.WED NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.THU...N winds 20 to 25 kt. Seas 9 to 10 ft. 
.THU NIGHT...N winds 20 to 30 kt. Seas 9 to 13 ft.
.FRI...N winds 20 to 30 kt. Seas 10 to 14 ft. 
.FRI NIGHT...N winds 15 to 20 kt. Seas 8 to 12 ft. 
.SAT...N to NW winds 10 to 15 kt. Seas 7 to 9 ft. 
.SAT NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 7 to 8 ft. 

$$

PZZ835-210315-
Point Piedras Blancas to Santa Cruz Island, CA between 60 nm and
150 nm offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N winds 15 to 25 kt. Seas 11 to 15 ft. 
.TONIGHT...N to NW winds 10 to 20 kt. Seas 8 to 12 ft. 
.WED...NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
6 to 9 ft. Chance of showers. 
.WED NIGHT...NW winds 5 to 15 kt, increasing to 10 to 20 kt.
Seas 6 to 9 ft. 
.THU...NW winds 15 to 25 kt. Seas 6 to 11 ft. 
.THU NIGHT...NW winds 20 to 30 kt. Seas 10 to 13 ft. 
.FRI...N to NW winds 20 to 30 kt. Seas 11 to 14 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 9 to 12 ft. 
.SAT...N winds 10 to 20 kt, becoming 10 to 15 kt. Seas 7 to
9 ft. 
.SAT NIGHT...N winds 15 to 25 kt. Seas 7 to 9 ft. 

$$

PZZ935-210315-
Point Piedras Blancas to Santa Cruz Island, CA between 150 nm
and 250 nm offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N winds 15 to 25 kt. Seas 11 to 15 ft. 
.TONIGHT...N to NW winds 10 to 20 kt. Seas 8 to 12 ft. 
.WED...NW winds 10 to 20 kt. Seas 7 to 9 ft. Chance of showers. 
.WED NIGHT...N to NW winds 10 to 20 kt. Seas 7 to 9 ft. 
.THU...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.THU NIGHT...N to NW winds 20 to 30 kt. Seas 9 to 13 ft. 
.FRI...N winds 20 to 30 kt. Seas 10 to 14 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 9 to 12 ft. 
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
7 to 10 ft. 
.SAT NIGHT...N winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 7 to 8 ft. 

$$

PZZ840-210315-
Santa Cruz Island, CA to San Clemente Island, CA between 60 nm
and 150 nm offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N to NW winds 15 to 25 kt. Seas 9 to 15 ft. 
.TONIGHT...NW winds 10 to 20 kt. Seas 7 to 12 ft. 
.WED...NW winds 10 to 20 kt. Seas 5 to 9 ft. 
.WED NIGHT...NW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft. 
.THU...NW winds 15 to 25 kt. Seas 5 to 9 ft. 
.THU NIGHT...NW winds 15 to 25 kt. Seas 7 to 12 ft. 
.FRI...NW winds 20 to 25 kt. Seas 7 to 12 ft. 
.FRI NIGHT...NW winds 15 to 25 kt, becoming N. Seas 7 to 12 ft. 
.SAT...N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 6 to
10 ft. 
.SAT NIGHT...N to NW winds 10 to 20 kt. Seas 5 to 9 ft. 

$$

PZZ940-210315-
Santa Cruz Island, CA to 120W between 150 nm and 250 nm offshore-
715 AM PST Tue Feb 20 2018

.TODAY...N winds 15 to 25 kt. Seas 12 to 15 ft. 
.TONIGHT...N winds 10 to 20 kt. Seas 9 to 13 ft. 
.WED...NW winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
7 to 10 ft. 
.WED NIGHT...NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas
6 to 8 ft. 
.THU...NW winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 11 ft. 
.FRI...N to NW winds 15 to 25 kt. Seas 7 to 12 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 9 to 12 ft. 
.SAT...N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 8 to
10 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 7 to 8 ft. 

$$

PZZ945-210315-
San Clemente Island, CA to Guadalupe Island from 60 nm offshore
west to 120W-
715 AM PST Tue Feb 20 2018

.TODAY...N to NW winds 10 to 20 kt. Seas 9 to 14 ft. 
.TONIGHT...NW winds 10 to 15 kt. Seas 7 to 12 ft. 
.WED...NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 6 to
10 ft. 
.WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 6 to 8 ft. 
.THU...NW winds 5 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...NW winds 10 to 20 kt. Seas 5 to 9 ft. 
.FRI...NW winds 15 to 25 kt. Seas 6 to 11 ft. 
.FRI NIGHT...N to NW winds 10 to 20 kt. Seas 8 to 11 ft. 
.SAT...N winds 5 to 15 kt, becoming 5 to 10 kt. Seas 7 to 10 ft.
.SAT NIGHT...N to NW winds 5 to 15 kt. Seas 6 to 8 ft. 

$$

.Forecaster Sommerville. Ocean Prediction Center.
Last Update:15:16Z, 20 February 2018
Updates: Four times per day

FZPN01 KWBC 202211
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC TUE FEB 20 2018 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY 
BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE). 

SECURITE 

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E 

SYNOPSIS VALID 1800 UTC FEB 20. 
24 HOUR FORECAST VALID 1800 UTC FEB 21. 
48 HOUR FORECAST VALID 1800 UTC FEB 22. 

.WARNINGS. 

...GALE WARNING... 
.COMPLEX LOW WITH MEAN CENTER 48N175E 992 MB MOVING NE 20 KT. 
FROM 38N TO 55N BETWEEN 166W AND 167E WINDS 30 TO 45 KT. SEAS 
12 TO 24 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 58N177W 997 MB.
OVER ICE FREE FORECAST WATERS WITHIN 480 NM NE...540 NM SE...480 
NM S AND SW...AND 180 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 11 
TO 22 FT.
.48 HOUR FORECAST LOW MOVED INLAND OVER ALASKA WITH A NEW LOW TO
FORM NEAR 59N149W 1018 MB. OVER ICE FREE FORECAST WATERS N OF A 
LINE FROM 53N142W TO 53N165W TO 61N177W WINDS 20 TO 30 KT. SEAS 
8 TO 15 FT.

...GALE WARNING... 
.LOW NW OF AREA 67N179E 990 MB MOVING NE 20 KT. OVER ICE FREE
FORECAST WATERS N AND W OF A LINE FROM 61N168W TO 58N177E WINDS 
25 TO 35 KT. SEAS 13 TO 26 FT.
.12 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS N OF AREA. 

...GALE WARNING... 
.LOW JUST W OF AREA 33N159E 1010 MB MOVING NE 20 KT. OVER 
FORECAST WATERS N OF 30N WITHIN 300 NM E AND SE QUADRANTS WINDS 
25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 39N170W 1012 MB. WITHIN 300 NM E AND NE 
SEMICIRCLES WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 46N176E 1003 MB.
WITHIN 420 NM NE...480 NM SE...780 NM S AND SW...AND 300 NM W 
AND NW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 46N165E 1007 MB. WITHIN 180 NM NE AND 120 
NM SW SEMICIRCLES WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 55N164E 
DESCRIBED BELOW.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 51N163E 1004 MB. WITHIN 180 NM NE 
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW W OF AREA 55N164E 999 MB. OVER FORECAST
WATERS FROM 47N TO 58N W OF 178E WINDS 25 TO 40 KT. SEAS 11 TO 
22 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW W OF AREA 48N157E 999 MB. OVER FORECAST 
WATERS WITHIN 240 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS TO 10 
FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 55N164E 
DESCRIBED ABOVE.

.SYNOPSIS AND FORECAST. 

.OVER FORECAST WATERS FROM 30N TO 37N E OF 127W AREA OF N TO NW
WINDS TO 25 KT. SEAS 8 TO 15 FT. 
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 36N125W BELOW. 

.LOW 45N128W 1018 MB MOVING SE 15 KT. WITHIN 360 NM W AND SW
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT. 
.24 HOUR FORECAST LOW 36N125W 1020 MB. WITHIN 300 NM W 
SEMICIRCLE WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 32N TO 45N BETWEEN 120W 
AND 130W N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.LOW 60N147W 1024 MB MOVING SE 30 KT. OVER FORECAST WATERS WITHIN
180 NM W AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 51N129W 1025 MB. WITHIN 180 NM W SEMICIRCLE
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSIPATED.

.FROM 30N TO 35N BETWEEN 144W AND 163W E TO SE WINDS 20 TO 30 KT.
SEAS 8 TO 13 FT. 
.24 HOUR FORECAST FROM 30N TO 36N BETWEEN 145W AND 165W E TO SE
WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 33N166W 1015 MB. FROM 30N TO 41N BETWEEN
148W AND 170W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 51N
BETWEEN 142W AND 153W...WITHIN 120 NM OF 39N161W...AND FROM 43N
TO 51N BETWEEN 170W AND 178W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 62N BETWEEN 151W AND 
171W. 
.48 HOUR FORECAST DENSE FOG FROM 34N TO 51N BETWEEN 149W AND 
178E. 

.HIGH 37N140W 1035 MB NEARLY STATIONARY. 
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST HIGH DISSIPATED. 

.HIGH 49N157W 1038 MB MOVING E 15 KT WILL TURN SE AFTER 24 HOURS.
.24 HOUR FORECAST HIGH 49N148W 1041 MB. 
.48 HOUR FORECAST HIGH 45N144W 1043 MB.

.HIGH 56N159W 1034 MB MOVING NE 15 KT. 
.24 HOUR FORECAST HIGH INLAND OVER ALASKA. 

.HIGH 35N174E 1021 MB MOVING NE 30 KT. 
.24 HOUR FORECAST HIGH 45N176W 1032 MB. 
.48 HOUR FORECAST HIGH 52N168W 1040 MB. 

.FORECASTER MILLS. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC TUE FEB 20.
24 HOUR FORECAST VALID 1800 UTC WED FEB 21.
48 HOUR FORECAST VALID 1800 UTC THU FEB 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 24.5N111.5W TO 23.5N112.5W...THEN WEAKENING 
COLD FRONT TO 22N116W. W OF LINE FROM 20N126W TO 27N140W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. N OF 26.5N BETWEEN 118W AND 
131W WINDS 20 KT OR LESS. SEAS 10 TO 14 FT IN NW TO N SWELL. 
ELSEWHERE N OF LINE FROM 25N115W TO 21N123W TO 16N124W TO 
09N140W WINDS 20 KT OR LESS. N OF 20N SEAS 8 TO 11 FT PRIMARILY 
IN NW SWELL. S OF 20N SEAS 8 TO 9 FT IN MIXED NW AND NE SWELL. 
.24 HOUR FORECAST FRONTS DISSIPATED. W OF LINE FROM 16N126W TO 
20N126W TO 25N140W NE TO E WINDS 20 TO 25 KT. SEAS 10 TO 12 FT. 
ELSEWHERE N OF LINE FROM 20N113W TO 12N124W TO 10N140W WINDS 20 
KT OR LESS. N OF 20N SEAS 8 TO 11 FT IN NW TO N SWELL. S OF 20N 
SEAS 8 TO 11 FT IN MIXED NW AND NE SWELL.
.48 HOUR FORECAST W OF LINE FROM 24N140W TO 18N114W TO 13N128W 
NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE N OF LINE 
FROM 28N140W TO 18N111W TO 10N111W TO 08N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.

.WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W TO 
10.5N88W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 
25 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W 
TO 10.5N88.5W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 
20 TO 25 KT. SEAS TO 9 FT. FROM 08.5N TO 12N BETWEEN 88.5W AND 
93W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED E AND SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 2045 UTC TUE FEB 20... 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 08N74W TO 06N82W TO 07N91W TO 05N101W. ITCZ 
CONTINUES FROM 05N101W TO 03N117W TO 06N136W TO BEYOND 05N140W. 
SCATTERED MODERATE ISOLATED STRONG FROM 07N TO 11N BETWEEN 128W 
AND 140W.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.
Last Update:22:11Z, 20 February 2018
Updates: Four times per day