Pacific Text Briefing Package

[Printable Version]

AGPN40 KWNM 181539
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
739 AM PST Thu Jan 18 2018

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

Mature storm center has slowed down overnight and as of 12Z NCEP
analysis was located NW of the offshore waters near 50N 135W with
a 969 mb center. Associated cold front is across the central PZ6
offshore waters. Much of the area N of the cold front lies in
cyclonic relatively unstable flow around the south and e sides of
the storm center. Although earlier ASCAT passes supported the
storm warnings over portions of the outer PZ5 waters during the
night, buoy 46005 just west of the waters has trended down with
winds and indicates gales. For the morning update have trimmed
back the storm warning to become confined to PZZ900 for the start
of the today period. Otherwise current gale warnings cover all
the PZ5 zones in the first period. As the low slowly weakens N of
teh area the gales will last longest in PZZ900 closer to the low
center, into Fri night. Per latest lightning strike and density
data with most current activity west of Northern California,
included TSTM mention moving into the outer northern PZ6 and SW
PZ5 waters later today and tonight from the W and SW.

The remainder of the forecast grids look fine with improved model
agreement on the next strong front to cross the waters Sat night
into Sun night and left associated warnings in place.

Seas...The current wave grids look fine and compare well with the
latest 12Z sta state analysis.
-----------------------------------------------------------------
PREVIOUS DISCUSSION...

GOES16 RGB Geocolor satellite images still show cyclonic 
circulation center to the northwest of the PZ5 waters with a 
break in cloudiness over the northwest portion of the Washington 
waters. The lightning density map still shows a band of lightning
strikes in the area along the clouds ahead of the break in 
clouds. The SREF_TSTMS still has PROB10 for TSTMS over the far 
north waters and continues to indicate that in the short term 
chances of TSTMS will spread into the northern and parts of the 
central waters and so will keep TSTMs in the weather grids. The 
06Z NCEP map now has low pressure 964 MB centered 180 NM 
northwest of the Washington waters and its associated cold front 
now east of the northern waters is oriented northeast to 
southwest across the central waters. Pressure gradient over the 
northern and central waters is still quite tight with maximum 
observed winds in the storm force range. Earlier scatterometer 
pass at 2042Z, though missed the area with expected maximum 
winds, indicated winds in the storm force range over the northern
waters. Buoy 46005 has wind reports in the lower 40 kt but gusts
into the upper 50 kt. A ridge of high pressure still due north 
of Hawaii extends east into the southern waters and has 
maintained a relaxed pressure gradient. 
 
Models GFS/ECMWFHR/UKMETHR/CMC have continued to initialize the 
surface observations with small differences mainly on the 
position of the low pressure west of the Washington waters and 
also the central pressure value. Models have also shown small 
variations in the wind speed associated with the same low. GFS 
and CMC still have winds in the higher storm force range while 
UKMET has low 50 kt winds and ECMWFHR has less than storm force 
winds. Will continue with GFS initially and will retain most of 
the previous forecast winds. 

.SEAS...They are still quite large over the northern waters with
Buoy 46005, west of the Washington waters reporting 38 ft at 
06Z. NWW3 still fits very well the observed seas pattern and has 
continued to match the peak seas over region but has kept seas 
slightly higher near the low pressure described above. ECMWFWAVE 
is still underdone now by 7 ft with the peak value over the high 
seas and also underdone by 2 ft over the northern waters. Will 
therefore stay with NWW3. In the short term, both wave models 
agree on seas subsiding over the northern waters as low pressure
slowly moves northeast.


.EXTRATROPICAL STORM SURGE GUIDANCE...Storm surge around 1.0- 
1.5 around Vancouver Island just north of the waters and will 
reach 0.5-1.0 ft today along the Washington and Oregon coasts. 


.WARNINGS...Preliminary.

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

.PZ6 California Waters...
.PZZ820...Inner Waters from Point St. George to Point Arena...
     Gale Possible Sunday.
.PZZ920...Outer Waters from Point St. George to Point Arena...
     Gale Possible Saturday night into Sunday. 

$$

.Forecaster Bancroft/Musonda. Ocean Prediction Center.
Last Update:15:40Z, 18 January 2018
Updates: Four times per day

FZPN25 KWBC 181612
OFFPZ5

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
812 AM PST Thu Jan 18 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.

PZZ898-190330-
812 AM PST Thu Jan 18 2018

.SYNOPSIS FOR WASHINGTON AND OREGON WATERS...A strong low
pressure system centered 180 NM NW of the Washington waters will
move slowly NE today and tonight, then stall and weaken N of the
waters Fri and Fri night. A low pressure trough will move E 
across the area tonight into Fri night. A strong cold front will 
approach from the west Sat and then pass E and SE across the 
waters Sat night into Sun. Another low will pass just NW of the 
waters Sat night into Sun then lift NW away from the waters Sun 
night. A high pressure ridge will build NE over the waters Mon 
and Mon night.

$$

PZZ800-190330-
Cape Flattery to Cape Shoalwater between 60 nm and 150 nm
offshore-
812 AM PST Thu Jan 18 2018

...GALE WARNING...

.TODAY...S to SW winds 35 to 45 kt. Seas 30 to 38 ft. Scattered
showers.
.TONIGHT...S to SW winds 30 to 40 kt. Seas subsiding to 22 to 30 ft.
Scattered showers.
.FRI...SW winds diminishing to 20 to 30 kt, then becoming W. Seas
subsiding to 18 to 21 ft. Chance of rain.
.FRI NIGHT...W winds 20 to 30 kt. Seas 17 to 21 ft. Scattered
showers.
.SAT...W to SW winds diminishing to 10 to 20 kt, then becoming S to
SW 15 to 25 kt. Seas subsiding to 12 to 16 ft.
.SAT NIGHT...S winds increasing to 35 to 45 kt. Seas 11 to 18 ft.
.SUN...Winds diminishing to W to SW 15 to 25 kt. Seas becoming 16 to
19 ft.
.SUN NIGHT...W winds 15 to 25 kt. Seas subsiding to 15 to 17 ft.
.MON...W winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
subsiding to 13 to 15 ft.
.MON NIGHT...W to SW winds 5 to 10 kt, becoming S 5 to 15 kt. Seas
becoming 11 to 14 ft.

$$

PZZ900-190330-
Cape Flattery to Cape Shoalwater between 150 nm and 250 nm
offshore-
812 AM PST Thu Jan 18 2018

...STORM WARNING...

.TODAY...SW winds 35 to 50 kt. Seas 28 to 38 ft. Scattered showers.
.TONIGHT...W to SW winds 35 to 45 kt. Seas subsiding to 22 to 30 ft.
Scattered showers.
.FRI...W winds 35 to 45 kt. Seas subsiding to 19 to 24 ft. Chance of
rain.
.FRI NIGHT...W winds becoming 25 to 35 kt, then diminishing to 15 to
25 kt. Seas subsiding to 15 to 22 ft. Scattered showers.
.SAT...W to SW winds 15 to 25 kt, becoming S 25 to 35 kt. Seas
subsiding to 12 to 16 ft.
.SAT NIGHT...S to SW winds increasing to 35 to 45 kt. Seas 12 to 18
ft.
.SUN...SW winds diminishing to 20 to 30 kt, then becoming W. Seas
becoming 17 to 18 ft.
.SUN NIGHT...W winds 20 to 30 kt. Seas becoming 15 to 17 ft.
.MON...W winds diminishing to 10 to 20 kt, then becoming 10 to 15
kt. Seas 14 to 16 ft.
.MON NIGHT...W to SW winds 5 to 15 kt, becoming S 10 to 20 kt. Seas
subsiding to 11 to 14 ft.

$$

PZZ805-190330-
Cape Shoalwater to Cape Lookout between 60 nm and 150 nm
offshore-
812 AM PST Thu Jan 18 2018

...GALE WARNING...

.TODAY...SW winds 35 to 45 kt. Seas 28 to 37 ft.
.TONIGHT...SW winds becoming 25 to 35 kt, then diminishing to 20 to
25 kt. Seas subsiding to 20 to 28 ft.
.FRI...SW winds 20 to 25 kt, becoming W 20 to 30 kt. Seas subsiding
to 17 to 20 ft. Scattered showers.
.FRI NIGHT...W winds 20 to 30 kt. Seas 17 to 20 ft. Scattered
showers.
.SAT...W winds diminishing to 10 to 15 kt, then becoming SW 15 to 25
kt. Seas subsiding to 12 to 16 ft.
.SAT NIGHT...S winds 20 to 30 kt, increasing to 35 to 45 kt. Seas 12
to 18 ft.
.SUN...S to SW winds 30 to 40 kt, becoming W 15 to 25 kt. Seas
building to 17 to 20 ft.
.SUN NIGHT...W winds 15 to 25 kt. Seas subsiding to 15 to 17 ft.
.MON...W winds 10 to 20 kt, becoming 10 to 15 kt. Seas subsiding to
13 to 15 ft.
.MON NIGHT...W winds diminishing to less than 10 kt, then becoming
S. Seas subsiding to 10 to 13 ft.

$$

PZZ905-190330-
Cape Shoalwater to Cape Lookout between 150 nm and 250 nm
offshore-
812 AM PST Thu Jan 18 2018

...GALE WARNING...

.TODAY...SW winds 35 to 45 kt. Seas 27 to 38 ft. Scattered showers.
.TONIGHT...W to SW winds 30 to 40 kt. Seas subsiding to 20 to 28 ft.
Scattered showers.
.FRI...W winds 25 to 35 kt. Seas subsiding to 18 to 23 ft. Scattered
showers.
.FRI NIGHT...W to NW winds 20 to 30 kt. Seas becoming 15 to 22 ft.
Scattered showers.
.SAT...W winds 15 to 25 kt, becoming S to SW 20 to 30 kt. Seas
subsiding to 12 to 16 ft.
.SAT NIGHT...S to SW winds increasing to 35 to 45 kt. Seas 12 to 18
ft.
.SUN...W to SW winds diminishing to 20 to 30 kt. Seas becoming 17 to
18 ft.
.SUN NIGHT...W winds 20 to 30 kt, diminishing to 15 to 20 kt. Seas
15 to 18 ft.
.MON...W winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
subsiding to 13 to 16 ft.
.MON NIGHT...SW winds 5 to 10 kt, becoming S 10 to 15 kt. Seas
subsiding to 10 to 13 ft.

$$

PZZ810-190330-
Cape Lookout to Florence, OR between 60 nm and 150 nm offshore-
812 AM PST Thu Jan 18 2018

...GALE WARNING...

.TODAY...SW winds 30 to 40 kt. Seas 26 to 33 ft.
.TONIGHT...W to SW winds diminishing to 20 to 30 kt. Seas subsiding
to 20 to 25 ft. Scattered showers.
.FRI...W winds 15 to 25 kt. Seas subsiding to 17 to 19 ft. Scattered
showers.
.FRI NIGHT...W to NW winds 20 to 30 kt. Seas 17 to 19 ft. Scattered
showers.
.SAT...W to NW winds diminishing to 10 to 15 kt, then becoming SW 10
to 20 kt. Seas subsiding to 12 to 16 ft.
.SAT NIGHT...S to SW winds increasing to 20 to 30 kt, then becoming
S 35 to 45 kt. Seas 11 to 17 ft.
.SUN...S to SW winds 30 to 40 kt, becoming W 15 to 25 kt. Seas
building to 17 to 19 ft.
.SUN NIGHT...W winds 15 to 25 kt. Seas subsiding to 15 to 17 ft.
.MON...W winds becoming 10 to 15 kt, then diminishing to 5 to 10 kt.
Seas subsiding to 13 to 15 ft.
.MON NIGHT...Variable winds less than 5 kt, becoming S 5 to 15 kt.
Seas subsiding to 10 to 13 ft.

$$

PZZ910-190330-
Cape Lookout to Florence, OR between 150 nm and 250 nm offshore-
812 AM PST Thu Jan 18 2018

...GALE WARNING...

.TODAY...SW winds 35 to 45 kt. Seas 25 to 35 ft. Scattered showers
and TSTMs.
.TONIGHT...W to SW winds diminishing to 20 to 30 kt. Seas subsiding
to 20 to 25 ft. Scattered showers and TSTMs.
.FRI...W winds 20 to 30 kt, becoming NW. Seas subsiding to 18 to 22
ft. Scattered showers.
.FRI NIGHT...W to NW winds 20 to 30 kt. Seas becoming 16 to 21 ft.
Scattered showers.
.SAT...W winds 15 to 25 kt, becoming SW 20 to 30 kt. Seas subsiding
to 12 to 16 ft.
.SAT NIGHT...S winds increasing to 30 to 40 kt. Seas becoming 12 to
19 ft.
.SUN...Winds diminishing to W 10 to 20 kt, then increasing to 20 to
30 kt. Seas becoming 17 to 19 ft.
.SUN NIGHT...W winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas
becoming 15 to 18 ft.
.MON...W winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas
subsiding to 13 to 15 ft.
.MON NIGHT...S to SW winds less than 10 kt, becoming S 10 to 20 kt.
Seas subsiding to 10 to 13 ft.

$$

PZZ815-190330-
Florence, OR to Point St. George between 60 nm and 150 nm
offshore-
812 AM PST Thu Jan 18 2018

...GALE FORCE WINDS POSSIBLE SAT NIGHT...

.TODAY...SW winds 25 to 35 kt, diminishing to 20 to 30 kt. Seas 23
to 30 ft. Scattered showers.
.TONIGHT...SW winds 20 to 30 kt, becoming W 15 to 20 kt. Seas
subsiding to 18 to 24 ft. Scattered showers and TSTMs.
.FRI...W winds 20 to 25 kt. Seas subsiding to 16 to 19 ft.
.FRI NIGHT...W to NW winds 20 to 30 kt. Seas 16 to 19 ft.
.SAT...NW winds diminishing to 10 to 20 kt, then becoming W to SW.
Seas subsiding to 13 to 16 ft.
.SAT NIGHT...S to SW winds increasing to 20 to 30 kt, then becoming
S 35 to 45 kt. Seas becoming 10 to 16 ft.
.SUN...S to SW winds 30 to 40 kt, becoming W to SW 25 to 35 kt. Seas
building to 12 to 19 ft.
.SUN NIGHT...W to NW winds diminishing to 15 to 25 kt. Seas 14 to 18
ft.
.MON...W to NW winds becoming 5 to 15 kt, then diminishing to less
than 10 kt. Seas subsiding to 12 to 15 ft.
.MON NIGHT...Variable winds diminishing to less than 5 kt, then
becoming S to SE 10 to 20 kt. Seas subsiding to 10 to 12 ft.

$$

PZZ915-190330-
Florence, OR to Point St. George between 150 nm and 250 nm
offshore-
812 AM PST Thu Jan 18 2018

...GALE WARNING...

.TODAY...W to SW winds 30 to 40 kt. Seas 22 to 32 ft. Scattered
showers and TSTMs.
.TONIGHT...W to SW winds diminishing to 20 to 30 kt. Seas subsiding
to 18 to 24 ft. Scattered showers and TSTMs.
.FRI...W winds 20 to 30 kt, becoming NW. Seas subsiding to 17 to 21
ft. Scattered showers.
.FRI NIGHT...NW winds 20 to 30 kt, becoming W 15 to 25 kt. Seas 16
to 20 ft.
.SAT...W winds 15 to 25 kt, becoming SW. Seas subsiding to 12 to 16
ft.
.SAT NIGHT...S to SW winds increasing to 25 to 35 kt. Seas 11 to 19
ft.
.SUN...SW winds 20 to 30 kt, becoming W 20 to 25 kt. Seas becoming
15 to 20 ft.
.SUN NIGHT...W winds 15 to 25 kt, diminishing to 10 to 15 kt. Seas
subsiding to 14 to 17 ft.
.MON...W to NW winds 5 to 15 kt, diminishing to less than 10 kt.
Seas subsiding to 12 to 15 ft.
.MON NIGHT...Variable winds less than 10 kt, becoming S to SE 15 to
25 kt. Seas subsiding to 10 to 13 ft.

$$

.Forecaster Bancroft. Ocean Prediction Center.
Last Update:16:14Z, 18 January 2018
Updates: Four times per day

FZPN26 KWBC 181615
OFFPZ6

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
815 AM PST Thu Jan 18 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.

PZZ899-190330-
815 AM PST Thu Jan 18 2018

.SYNOPSIS FOR CALIFORNIA WATERS...A weak cold front will move SE
over the central waters today, reach the southern waters tonight
then dissipate Fri. A low pressure trough will move slowly E 
across the northern waters tonight and Fri. A high pressure 
ridge will build E over the region Fri into Sat, and persist over
the S portion Sat night into early Mon. A strong cold front will
move SE over the northern waters Sun, then stall and weaken over
the north-central waters Sun night and early Mon. High pressure 
will rebuild over the entire area Mon and Mon night. 

$$

PZZ820-190330-
Point St. George to Point Arena between 60 nm and 150 nm
offshore-
815 AM PST Thu Jan 18 2018

...GALE FORCE WINDS POSSIBLE SUN...

.TODAY...W to SW winds 15 to 25 kt. Seas 19 to 26 ft.
.TONIGHT...W winds 15 to 25 kt. Seas subsiding to 17 to 21 ft.
.FRI...W to NW winds 15 to 20 kt. Seas subsiding to 15 to 18 ft.
Scattered showers.
.FRI NIGHT...NW winds 15 to 25 kt. Seas 15 to 18 ft. Scattered
showers.
.SAT...NW winds 15 to 20 kt, becoming W to NW 10 to 15 kt. Seas
subsiding to 13 to 16 ft.
.SAT NIGHT...W to SW winds 10 to 20 kt, becoming SW 20 to 30 kt.
Seas subsiding to 10 to 13 ft.
.SUN...SW winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
building to 11 to 19 ft.
.SUN NIGHT...W to SW winds 20 to 30 kt, becoming N 5 to 15 kt. Seas
14 to 18 ft.
.MON...N winds 5 to 10 kt, becoming 5 to 15 kt. Seas subsiding to 12
to 14 ft.
.MON NIGHT...N winds 5 to 15 kt, becoming E 10 to 20 kt. Seas
subsiding to 9 to 12 ft.

$$

PZZ920-190330-
Point St. George to Point Arena between 150 nm and 250 nm
offshore-
815 AM PST Thu Jan 18 2018

...GALE FORCE WINDS POSSIBLE SAT NIGHT...

.TODAY...W winds 20 to 30 kt. Seas 20 to 26 ft. Scattered showers
and TSTMs.
.TONIGHT...W winds 20 to 25 kt. Seas subsiding to 17 to 21 ft.
Scattered showers and TSTMs.
.FRI...W to NW winds 15 to 25 kt. Seas subsiding to 16 to 19 ft.
Scattered showers.
.FRI NIGHT...NW winds 20 to 30 kt. Seas 16 to 19 ft.
.SAT...NW winds diminishing to 15 to 20 kt, then becoming W to SW 15
to 25 kt. Seas subsiding to 12 to 16 ft.
.SAT NIGHT...SW winds increasing to 25 to 35 kt, then diminishing to
20 to 30 kt. Seas 10 to 18 ft.
.SUN...SW winds 25 to 35 kt. Seas building to 12 to 20 ft.
.SUN NIGHT...Winds becoming NW 10 to 20 kt, then diminishing to 5 to
10 kt. Seas 14 to 18 ft.
.MON...W to NW winds 5 to 10 kt, becoming N to NW. Seas subsiding to
11 to 14 ft.
.MON NIGHT...Variable winds less than 10 kt, becoming S 10 to 20 kt.
Seas becoming 9 to 13 ft.

$$

PZZ825-190330-
Point Arena to Pigeon Point between 60 nm and 150 nm offshore-
815 AM PST Thu Jan 18 2018

.TODAY...W winds 10 to 15 kt, becoming W to SW 10 to 20 kt. Seas 18
to 21 ft.
.TONIGHT...W winds 10 to 20 kt. Seas subsiding to 16 to 19 ft.
.FRI...W winds 15 to 20 kt, becoming NW. Seas subsiding to 15 to 17
ft.
.FRI NIGHT...NW winds 15 to 25 kt. Seas 14 to 16 ft.
.SAT...N to NW winds 10 to 20 kt. Seas 13 to 16 ft.
.SAT NIGHT...NW winds 10 to 20 kt, becoming W to SW 10 to 15 kt.
Seas subsiding to 10 to 14 ft.
.SUN...SW winds 10 to 20 kt, increasing to 20 to 30 kt. Seas 9 to 15
ft.
.SUN NIGHT...SW winds 20 to 30 kt. Seas 9 to 16 ft.
.MON...Winds diminishing to N to NW 5 to 15 kt. Seas 12 to 14 ft.
.MON NIGHT...N winds 10 to 15 kt, becoming W 5 to 15 kt. Seas
subsiding to 9 to 12 ft.

$$

PZZ925-190330-
Point Arena to Pigeon Point between 150 nm and 250 nm offshore-
815 AM PST Thu Jan 18 2018

.TODAY...W winds 15 to 25 kt. Seas 18 to 21 ft.
.TONIGHT...W winds 15 to 25 kt. Seas subsiding to 16 to 19 ft.
.FRI...W to NW winds 15 to 25 kt. Seas subsiding to 15 to 17 ft.
Scattered showers.
.FRI NIGHT...N to NW winds 15 to 25 kt. Seas 15 to 18 ft.
.SAT...NW winds 15 to 20 kt, becoming W to NW 10 to 15 kt. Seas
subsiding to 13 to 16 ft.
.SAT NIGHT...W winds 10 to 20 kt, becoming SW 15 to 25 kt. Seas
subsiding to 10 to 13 ft.
.SUN...SW winds 20 to 30 kt. Seas building to 11 to 18 ft.
.SUN NIGHT...SW winds 20 to 30 kt, becoming W to SW 10 to 20 kt.
Seas 11 to 18 ft.
.MON...Winds diminishing to N to NW 5 to 10 kt. Seas becoming 11 to
14 ft.
.MON NIGHT...N to NW winds 5 to 15 kt, becoming variable. Seas
subsiding to 9 to 11 ft.

$$

PZZ830-190330-
Pigeon Point to Point Piedras Blancas between 60 nm and 150 nm
offshore-
815 AM PST Thu Jan 18 2018

.TODAY...W to SW winds 5 to 10 kt, becoming N to NW 5 to 15 kt. Seas
14 to 20 ft.
.TONIGHT...W to NW winds 10 to 20 kt. Seas 15 to 17 ft.
.FRI...W winds 15 to 20 kt, becoming NW. Seas 14 to 16 ft.
.FRI NIGHT...N to NW winds 20 to 25 kt. Seas 14 to 15 ft. Scattered
showers.
.SAT...N to NW winds 15 to 25 kt. Seas 14 to 15 ft.
.SAT NIGHT...N to NW winds 15 to 25 kt. Seas becoming 11 to 14 ft.
.SUN...Winds diminishing to W to SW 5 to 15 kt. Seas subsiding to 8
to 11 ft.
.SUN NIGHT...SW winds increasing to 15 to 25 kt. Seas becoming 8 to
14 ft.
.MON...W winds 10 to 20 kt, becoming N 10 to 15 kt. Seas becoming 11
to 14 ft.
.MON NIGHT...N to NW winds 10 to 15 kt. Seas subsiding to 9 to 12
ft.

$$

PZZ930-190330-
Pigeon Point to Point Piedras Blancas between 150 nm and 250 nm
offshore-
815 AM PST Thu Jan 18 2018

.TODAY...W to NW winds 5 to 10 kt, becoming W 10 to 20 kt. Seas 17
to 20 ft.
.TONIGHT...W winds 10 to 20 kt. Seas subsiding to 15 to 17 ft.
.FRI...W to NW winds 15 to 25 kt. Seas 14 to 16 ft. Scattered
showers.
.FRI NIGHT...N to NW winds 15 to 25 kt. Seas 14 to 16 ft.
.SAT...N to NW winds 10 to 20 kt. Seas 13 to 16 ft.
.SAT NIGHT...NW winds 10 to 15 kt, becoming W to SW 10 to 20 kt.
Seas subsiding to 10 to 14 ft.
.SUN...W to SW winds 15 to 25 kt. Seas subsiding to 8 to 12 ft.
.SUN NIGHT...SW winds 15 to 25 kt. Seas building to 9 to 15 ft.
.MON...W winds 10 to 20 kt, becoming N 10 to 15 kt. Seas 11 to 14
ft.
.MON NIGHT...N winds 5 to 15 kt, becoming N to NW. Seas subsiding to
9 to 11 ft.

$$

PZZ835-190330-
Point Piedras Blancas to Santa Cruz Island, CA between 60 nm and
150 nm offshore-
815 AM PST Thu Jan 18 2018

.TODAY...W to NW winds 5 to 15 kt, becoming N to NW. Seas 10 to 18
ft.
.TONIGHT...N to NW winds 5 to 15 kt, becoming NW 10 to 20 kt. Seas
becoming 14 to 17 ft.
.FRI...NW winds 15 to 20 kt. Seas 14 to 15 ft.
.FRI NIGHT...N to NW winds 20 to 25 kt. Seas 14 to 15 ft. Scattered
showers.
.SAT...NW winds 20 to 30 kt. Seas 14 to 15 ft.
.SAT NIGHT...N winds 20 to 30 kt. Seas becoming 11 to 14 ft.
.SUN...N winds diminishing to 10 to 20 kt. Seas becoming 8 to 13 ft.
.SUN NIGHT...N to NW winds 10 to 20 kt. Seas 8 to 11 ft.
.MON...W to NW winds 5 to 15 kt. Seas building to 9 to 13 ft.
.MON NIGHT...W to NW winds 10 to 20 kt, becoming N to NW 10 to 15
kt. Seas 9 to 12 ft.

$$

PZZ935-190330-
Point Piedras Blancas to Santa Cruz Island, CA between 150 nm
and 250 nm offshore-
815 AM PST Thu Jan 18 2018

.TODAY...W winds 5 to 10 kt, becoming N to NW 5 to 15 kt. Seas 10 to
18 ft.
.TONIGHT...NW winds 10 to 20 kt. Seas 14 to 16 ft.
.FRI...NW winds 15 to 25 kt. Seas 14 to 15 ft.
.FRI NIGHT...NW winds 20 to 25 kt, becoming N. Seas 14 to 15 ft.
.SAT...N winds 15 to 25 kt. Seas 14 to 16 ft.
.SAT NIGHT...N winds 10 to 20 kt. Seas subsiding to 10 to 14 ft.
.SUN...N to NW winds 5 to 15 kt, becoming W to SW. Seas subsiding to
8 to 12 ft.
.SUN NIGHT...W winds 5 to 15 kt, becoming W to SW 10 to 20 kt. Seas
8 to 13 ft.
.MON...W winds 10 to 20 kt. Seas 9 to 13 ft.
.MON NIGHT...Winds veering to N to NW 10 to 15 kt. Seas 9 to 12
ft.

$$

PZZ840-190330-
Santa Cruz Island, CA to San Clemente Island, CA between 60 nm
and 150 nm offshore-
815 AM PST Thu Jan 18 2018

.TODAY...NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 6 to
10 ft, building to 10 to 16 ft.
.TONIGHT...NW winds 10 to 15 kt. Seas 9 to 16 ft.
.FRI...NW winds increasing to 15 to 25 kt. Seas 9 to 14 ft.
.FRI NIGHT...NW winds 20 to 30 kt. Seas 10 to 14 ft.
.SAT...NW winds 20 to 30 kt. Seas 10 to 15 ft.
.SAT NIGHT...N to NW winds 20 to 30 kt. Seas becoming 8 to 14 ft.
.SUN...N winds 15 to 25 kt. Seas 7 to 13 ft.
.SUN NIGHT...N to NW winds 15 to 25 kt. Seas subsiding to 6 to 11
ft.
.MON...N to NW winds 15 to 25 kt. Seas 6 to 11 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 7 to 12 ft.

$$

PZZ940-190330-
Santa Cruz Island, CA to 120W between 150 nm and 250 nm offshore-
815 AM PST Thu Jan 18 2018

.TODAY...N to NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
9 to 16 ft.
.TONIGHT...W to NW winds 10 to 15 kt. Seas 9 to 16 ft.
.FRI...NW winds 15 to 20 kt. Seas 12 to 14 ft.
.FRI NIGHT...NW winds 20 to 25 kt. Seas 12 to 14 ft.
.SAT...N to NW winds 15 to 25 kt. Seas 13 to 15 ft.
.SAT NIGHT...N to NW winds 15 to 25 kt. Seas 12 to 14 ft.
.SUN...N winds 15 to 25 kt. Seas becoming 9 to 13 ft.
.SUN NIGHT...N winds 10 to 20 kt. Seas subsiding to 8 to 11 ft.
.MON...N winds 10 to 20 kt. Seas 9 to 11 ft.
.MON NIGHT...N to NW winds 10 to 20 kt. Seas 9 to 11 ft.

$$

PZZ945-190330-
San Clemente Island, CA to Guadalupe Island from 60 nm offshore
west to 120W-
815 AM PST Thu Jan 18 2018

.TODAY...N to NW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 7 to 10 ft. 
.TONIGHT...N to NW winds 5 to 15 kt. Seas building to 9 to 15 
ft.
.FRI...NW winds 10 to 20 kt. Seas 11 to 14 ft. 
.FRI NIGHT...N to NW winds 15 to 25 kt. Seas 10 to 14 ft. 
.SAT...NW winds 20 to 25 kt. Seas 11 to 14 ft. 
.SAT NIGHT...N to NW winds 15 to 25 kt. Seas 11 to 14 ft. 
.SUN...N winds 10 to 20 kt. Seas 9 to 13 ft. 
.SUN NIGHT...N winds 10 to 20 kt, becoming 10 to 15 kt. Seas
7 to 11 ft. 
.MON...N winds 10 to 20 kt. Seas 7 to 10 ft. 
.MON NIGHT...N winds 10 to 20 kt. Seas 7 to 11 ft. 

$$

.Forecaster Bancroft. Ocean Prediction Center.
Last Update:16:16Z, 18 January 2018
Updates: Four times per day

FZPN01 KWBC 181613
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC THU JAN 18 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). 

PAN PAN 

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

SYNOPSIS VALID 1200 UTC JAN 18. 
24 HOUR FORECAST VALID 1200 UTC JAN 19. 
48 HOUR FORECAST VALID 1200 UTC JAN 20. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.LOW 46N177W 992 MB MOVING NE 35 KT. WITHIN 210 NM S AND SW  
QUADRANTS WINDS 50 TO 65 KT. SEAS 20 TO 34 FT. WITHIN 240 NM S 
AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 15 TO 25 FT. ELSEWHERE 
WITHIN 600 NM E...180 NM N...AND 480 NM SW SEMICIRCLE WINDS 25 
TO 40 KT. SEAS 10 TO 20 FT. 
.24 HOUR FORECAST LOW 51N158W 988 MB. WITHIN 420 NM SE AND 300 
NM SW QUADRANTS WINDS 40 TO 55 KT. SEAS 20 TO 34 FT. ELSEWHERE 
WITHIN 660 NM SE...420 NM NE SW QUADRANTS...AND 240 NM N 
SEMICIRCLE WINDS 30 TO 40 KT. SEAS 14 TO 26 FT. 
.48 HOUR FORECAST LOW 51N146W 988 MB. WITHIN 420 NM SE AND 480 
NM SW AND W QUADRANTS WINDS 30 TO 45 KT. SEAS 16 TO 32 FT. 
ELSEWHERE WITHIN 240 NM E AND SE OF A FRONT FROM 50N135W TO 
41N145W WINDS 30 TO 45 KT. SEAS 10 TO 20 FT.

...STORM WARNING... 
.LOW 50N134W 969 MB MOVING NE 5 KT. BETWEEN 180 NM AND 480 NM S 
AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 24 TO 45 FT. ELSEWHERE 
WITHIN 240 NM NE...660 NM SE...960 NM SW...AND 420 NM NW 
QUADRANTS WINDS 25 TO 40 KT. SEAS 15 TO 30 FT.
.24 HOUR FORECAST LOW 52N132W 986 MB. WITHIN 150 NM NE...360 NM 
SE...480 NM SW...AND 180 NM NE QUADRANTS WINDS 35 TO 45 KT. SEAS 
14 TO 28 FT. ELSEWHERE WITHIN 180 NM NE...480 NM SE...740 NM 
SW...AND 360 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 24 FT.
.48 HOUR FORECAST LOW 53N130W 998 MB. WITHIN 120 NM SE AND S 
QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 18 FT. 

...STORM WARNING... 
.LOW W OF AREA 39N154E 978 MB MOVING NE 20 KT. WITHIN 480 NM E 
QUADRANT WINDS 40 TO 50 KT. SEAS 14 TO 28 FT. ELSEWHERE WITHIN 
540 NM NE AND 600 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 
16 FT.
.24 HOUR FORECAST LOW 44N162E 968 MB. FRONT WILL EXTEND FROM 
44N160E TO 43N172E TO 33N170E. FROM 37N TO 43N W OF 167E WINDS 
40 TO 60 KT. SEAS 26 TO 44 FT. ELSEWHERE FROM 32N TO 44N W OF 
171E WINDS 25 TO 40 KT. SEAS 15 TO 30 FT. ELSEWHERE WITHIN 540 
NM N AND NE AND 360 NM NW QUADRANTS...AND WITHIN 240 NM NE AND E 
OF FRONT WINDS 30 TO 45 KT. SEAS 10 TO 24 FT.
.48 HOUR FORECAST LOW 48N168E 977 MB. WITHIN 660 NM NE...360 NM 
SW AND W QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 30 FT...HIGHEST 
S.

...GALE WARNING... 
.LOW 54N172E 991 MB MOVING SE 20 KT. FROM 48N TO 54N BETWEEN 
165E AND 177E...ALSO BETWEEN 56N AND 58N W OF 179W WINDS 25 TO 
40 KT. SEAS 12 TO 22 FT. 
.24 HOUR FORECAST LOW 52N174W 1010 MB. WITHIN 240 NM S 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED. 

...GALE WARNING... 
.LOW 31N175W 1015 MB MOVING NE 15 KT. FROM 30N TO 34N BETWEEN 
164W AND 177E WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. 
.24 HOUR FORECAST LOW 35N166W 1014 MB. N OF 30N WITHIN 420 NM SE 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE WITHIN 
270 NM NW SEMICIRCLE WINDS 20 TO 30 KT. SEAS 10 TO 16 FT. 
.48 HOUR FORECAST LOW 40N147W 1014 MB. WITHIN 300 NM E AND 360 
NM S QUADRANTS WINDS 30 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE 
WITHIN 540 NM SE AND 420 NM NW SEMICIRCLES WINDS 20 TO 30 KT. 
SEAS 8 TO 16 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 58N TO 63N BETWEEN 162W AND 173W WINDS 20 
TO 30 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST FROM 54N TO 60N BETWEEN 156W AND 169W WINDS 25 
TO 35 KT. SEAS 8 TO 14 FT. 

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY N OF 62N AND W OF ALASKA. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE 
FROM 58N164W TO 63N176W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE 
FROM 58N163W TO 63N171W.

.SYNOPSIS AND FORECAST. 

.LOW 57N151W 992 MB MOVING NE 10 KT. WITHIN 360 NM SW AND W 
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW 58N146W 998 MB. WITHIN 120 NM S QUADRANT 
WINDS TO 25 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED. 

.HIGH 36N157W 1036 MB MOVING E 20 KT. 
.24 HOUR FORECAST HIGH 36N146W 1036 MB. 
.48 HOUR FORECAST HIGH 34N136W 1032 MB. 

.HIGH 41N171E 1023 MB MOVING E 30 KT. 
.24 HOUR FORECAST HIGH 42N173W 1024 MB.
.48 HOUR FORECAST HIGH 43N164W 1025 MB.

.HIGH 33N173E 1022 MB MOVING NE 30 KT. 
.24 HOUR FORECAST HIGH MERGED WITH HIGH 42N173W 1024 MB. 

.FORECASTER HUFFMAN. 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 1200 UTC THU JAN 18.
24 HOUR FORECAST VALID 1200 UTC FRI JAN 19.
48 HOUR FORECAST VALID 1200 UTC SAT JAN 20.

.WARNINGS.

...GALE WARNING...
.WITHIN 60 NM EITHER SIDE OF A LINE FROM 16N95W TO 12N96W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 45 KT.
SEAS 10 TO 19 FT. ELSEWHERE WITHIN 120 NM EITHER SIDE OF A LINE
FROM 16N95W TO 12N96W TO 11N100W N TO NE WINDS 20 TO 30 KT. SEAS
10 TO 16 FT. REMAINDER OF AREA BOUNDED BY 16N95W TO 11.5N90W TO
07N90W TO 00N102W TO 15N102W TO 16N95W WINDS 20 KT OR LESS. SEAS
8 TO 12 FT IN MIXED NE AND NW SWELL...HIGHEST N CENTRAL PART. 
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
30 TO 35 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 75 NM EITHER SIDE
OF A LINE FROM 16N95W TO 12.5N97W N TO NE WINDS 20 TO 30 KT. SEAS
8 TO 11 FT. REMAINDER OF AREA BOUNDED BY 15N100W TO 10N90W TO
06N90W TO 00N93W TO 03.4S100W TO 15N100W WINDS 20 KT OR LESS.
SEAS 8 TO 12 FT IN MIXED NE AND NW SWELL.
.30 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W
TO 13.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
20 TO 25 KT. SEAS 8 TO 9 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N133W TO 25N140W. W OF A LINE FROM 30N128W TO
22N140W WINDS 20 KT OR LESS. SEAS 11 TO 17 FT IN MIXED SE AND NW
SWELL. ELSEWHERE W OF A LINE FROM 30N116W TO 15N102W TO 03.4S102W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.12 HOUR FORECAST COLD FRONT FROM 30N128W TO 24N140W. W OF FRONT
N TO NE WINDS 20 TO 25 KT. SEAS 12 TO 15 FT IN MIXED SE AND NW
SWELL. ELSEWHERE W OF A LINE 30N117W TO 23N112W TO 16N102W
03.4S102W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN MIXED SWELL.
.24 HOUR FORECAST COLD FRONT WEAKENING FROM 30N122W TO 26N130W TO
22N140W. W OF FRONT N TO NE WINDS 20 TO 30 KT. SEAS 12 TO 15 FT
IN MIXED SE AND NW SWELL. FROM 13N TO 22N W OF 132W NE WINDS 20
TO 25 KT. SEAS 10 TO 13 FT IN MIXED E AND NW SWELL. ELSEWHERE W
OF A LINE FROM 30N116W TO 24N113W TO 19N118W TO 15N100W TO
03.4S100W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN MIXED SWELL.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 29N115W TO 25N120W
TO 20N128W. N OF 20N W OF FRONT N TO NE WINDS 20 TO 30 KT... 
EXCEPT NW TO N WINDS E OF 120W. SEAS 11 TO 15 FT IN MIXED NE AND
NW SWELL. FROM 10N TO 20N W OF 128W NE TO E WINDS 20 TO 25 KT.
SEAS 10 TO 14 FT IN MIXED SWELL. ELSEWHERE W OF A LINE FROM
30N116W TO 14N104W TO 10N88W TO 03.4S92W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED SWELL.

.WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W TO 08.5N90W...
INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8
FT.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W
TO 09N89W TO 08.5N93W...INCLUDING THE GULF OF PAPAGAYO...NE TO E
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 11N86W
TO 09N90W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25
KT. SEAS TO 8 FT.

.42 HOUR FORECAST COLD FRONT FROM 31.5N113.5W TO 30N115W. WITHIN
60 NM SE OF FRONT S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT. W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST COLD FRONT FROM 30.5N113W TO 30.5N114W. S OF 
FRONT TO 29.5N SW TO W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. N 
OF FRONT NW TO N WINDS 20 TO 30 KT. SEAS TO 8 FT.

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

CONVECTION VALID AT 1500 UTC THU JAN 18...

.SCATTERED MODERATE ISOLATED STRONG WITHIN 210 NM SW OF COAST OF
MEXICO BETWEEN 96W AND 100W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 09N78W TO 04N93W TO 05N99W. ITCZ AXIS 
EXTENDS FROM 05N99W TO 08N110W TO 06N125W TO 07N140W. SCATTERED
MODERATE FROM 03N TO 06N E OF 81W AND FROM 05N TO 09N BETWEEN 82W
AND 87W. SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 06N
BETWEEN 98W AND 102W...FROM 06N TO 10N BETWEEN 108W AND 114W...
AND WITHIN AREA BOUNDED BY 16N134W TO 13N125W TO 06N126W TO
05N136W TO 16N134W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
Last Update:16:15Z, 18 January 2018
Updates: Four times per day