AGNT40 KWNM 221941
MIMATN

Marine Weather Discussion for N Atlantic Ocean
NWS Ocean Prediction Center Washington DC
241 PM EST Wed Nov 22 2017

.FORECAST DISCUSSION...Major features/winds/seas/significant 
.weather for the North Atlantic Ocean W of 50W from 30N to 50N.

The GOES infrared and visible satellite data indicate developing
low pres along a frontal boundary across the W Atlc this 
afternoon, and the lightning density product indicates showers 
and tstms along the front with the majority of the convective 
activity in the unstable environment over the Gulf Stream. 
Previous weather grids had mentions of showers and tstms, so 
planning on maintaining them while making minor adjustments for 
current conditions. As far as the winds are concerned, the Ascat 
from 1355 UTC this morning indicated a few gales near the front,
but the overpasses largely missed the offshore waters including
just E of the front where the 12Z GFS/ECMWF both indicated the
strongest winds over the Gulf Stream. Also, current surface 
reports only indicate up to 20 kt in the offshore waters with nor
reports in the vicinity of the front. The 12Z GFS/ECMWF/UKMET 
are all initialized fairly well on the synoptic features, and all
indicate the aforementioned developing low pres will intensify 
tonight as it moves NE across the Gulf Stream. The 12Z GFS 10m
winds indicated 55 kt with the first sigma winds up to 60 kt at
18Z. The 12Z ECMWF also indicated 50 kt at 18Z, while the UKMET
only showed about 40 kt. However, model lapse rates and stability
indices indicate an unstable environment over the Gulf Stream,
while model 925 mb GFS/ECMWF winds increase up to 75 kt tonight.
This development of stronger low level winds is expected N of the
Gulf Stream, so confidence with hurricane force mixing down to
the surface is just below average. As a result, planning on
staying with storm warnings for early tonight, and then drop
all warnings in the offshore waters later tonight as the models
agree well on taking the low quickly off to the NE. Will stay
with previous wind and wave height grids for tonight which seem 
representative.

The 12Z models then indicate another low currently organizing in
the Gulf of Mexico will slowly develop off the SE coast Fri into
Fri night, and move NE across the area Fri night and Sat. The 
GFS/ECMWF were not in good agreement on the track and intensity 
of the low and associated winds in previous model runs, and there
are still some minor differences as it moves into srn NT2. The
12Z ECMWF is a little W of the 12Z GFS/UKMET track with the low,
but is E of the 12Z GEM. The 12Z ECMWF did trend a little faster
from its 00Z run, and is supported by the 12Z GEFS members. The
previous forecast favored a previous run of the ECMWF, so
planning on populating with the 12Z ECMWF starting Thu. There is
also some question on the intensity of the winds. The previous
forecast went up to 25 kt. However, the 12Z ECMWF indicates 30 
kt in NE flow over the Gulf Stream by Fri, and this seems
reasonable. There is also a question of whether or not gales will
develop further out on Sun in the cold advection behind the 
front. However, confidence is low as a result of the poor
agreement on the track further out in the medium range. As a
result, planning on capping winds at 30 kt in the offshore waters
through the remainder of the forecast period.

Seas...The 12Z ECMWF WAM is initialized slightly better when
compared with the current data in the offshore waters. However,
will start out with the previous wave height grids for tonight 
to better match the wind grids. Will then transition to the 12Z
ECMWF WAM Thu and continue with it through the remainder of the
forecast period to reflect trends of the preferred 12Z ECMWF
winds.

.EXTRATROPICAL STORM SURGE GUIDANCE...n/a. 

.WARNINGS...Preliminary.

.NT1 New England Waters...
.ANZ900...Georges Bank east of 68W...
     Gale tonight.

.NT2 Mid-Atlantic Waters...
.ANZ905...The Great South Channel to the Hague Line...
  Storm tonight.
.ANZ910...East of the Great South Channel and south of 39N...
  Storm tonight.

$$

.Forecaster Kells. Ocean Prediction Center.
Last Update:19:42Z, 22 November 2017
Updates: Four times per day

FZNT21 KWBC 221455
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
955 AM EST Wed Nov 22 2017

New England continental shelf and slope waters from 25 nm
offshore to the Hague Line, except to 1000 fm south of New
England.

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.

ANZ898-230415-
955 AM EST Wed Nov 22 2017

.SYNOPSIS FOR NEW ENGLAND WATERS... A cold front will move SE across
the waters today into tonight. Developing low pres will pass just SE
of Georges Bank this afternoon into tonight, then move well E and NE
of Georges Bank later tonight and Thu as high pres builds E across
the waters. The high will weaken later Thu and Thu night as a weak
cold front approaches the coast from the NW. The front will move E
across the waters Fri before weak high pres moves E over the area
Fri night. A strong cold front will move E across the waters late
Sat and Sat night. Another developing low will pass E and SE of the
waters Sat night and Sun, and intensify NE of the area Sun night as
the next high pres builds E toward the region. 

$$

ANZ800-230415-
Gulf of Maine to the Hague Line-
955 AM EST Wed Nov 22 2017

.TODAY...S winds 15 to 25 kt. Seas 4 to 8 ft. Scattered showers with
VSBY 1 nm or less.
.TONIGHT...Winds veering to NW 20 to 30 kt. Seas 5 to 9 ft, building
to 8 to 14 ft. Chance of showers.
.THU...NW winds 15 to 25 kt, becoming W 5 to 15 kt. Seas subsiding
to 6 to 11 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas subsiding to 4 to 7 ft.
.FRI...W to NW winds 10 to 15 kt, becoming NW. Seas 3 to 6 ft.
.FRI NIGHT...Winds backing to S 5 to 15 kt, then becoming S to SW 15
to 20 kt. Seas 3 to 6 ft.
.SAT...S winds 15 to 25 kt. Seas building to 5 to 8 ft.
.SAT NIGHT...S winds 10 to 20 kt, becoming NW 5 to 15 kt. Seas 4 to
7 ft.
.SUN...NW winds increasing to 15 to 25 kt. Seas subsiding to 3 to 5
ft, then building to 5 to 9 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Seas building to 7 to 12 ft.

$$

ANZ805-230415-
Georges Bank between Cape Cod and 68W north of 1000 fm-
955 AM EST Wed Nov 22 2017

.TODAY...S winds 20 to 30 kt. Seas 4 to 8 ft. Scattered showers with
VSBY 1 nm or less.
.TONIGHT...Winds veering to NW 20 to 30 kt. Seas building to 8 to 14
ft. Chance of showers.
.THU...NW winds diminishing to 10 to 20 kt, then becoming W 10 to 15
kt. Seas subsiding to 6 to 11 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas subsiding to 4 to 7 ft.
.FRI...W to NW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 4
to 6 ft.
.FRI NIGHT...S to SW winds 5 to 15 kt, becoming S 10 to 20 kt. Seas
4 to 6 ft.
.SAT...S winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...S winds 10 to 20 kt, becoming NW. Seas 3 to 6 ft.
.SUN...W to NW winds 15 to 25 kt. Seas building to 6 to 10 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Seas 6 to 11 ft.

$$

ANZ900-230415-
Georges Bank between 68W and the Hague Line-
955 AM EST Wed Nov 22 2017

...GALE WARNING...

.TODAY...S winds 20 to 30 kt. Seas 6 to 9 ft. Scattered showers and
TSTMs.
.TONIGHT...Winds veering to NW 25 to 35 kt, then diminishing to 20
to 30 kt. Seas building to 9 to 16 ft. Scattered showers.
.THU...NW winds diminishing to 10 to 20 kt, then becoming 10 to 15
kt. Seas subsiding to 7 to 9 ft.
.THU NIGHT...W winds 5 to 15 kt. Seas subsiding to 5 to 6 ft.
.FRI...W to NW winds 5 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...W to SW winds less than 10 kt, becoming S to SW 10 to
20 kt. Seas 4 to 6 ft.
.SAT...S winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...S to SE winds 10 to 20 kt, becoming SE 20 to 30 kt.
Seas 4 to 7 ft.
.SUN...Winds shifting to W to NW 15 to 25 kt. Seas building to 7 to
11 ft.
.SUN NIGHT...W winds 20 to 25 kt, becoming NW. Seas becoming 10 to
12 ft.

$$

ANZ810-230415-
South of New England between the Great South Channel and Montauk
Point to 1000 fm-
955 AM EST Wed Nov 22 2017

.TODAY...S winds 15 to 25 kt, becoming NW. Seas 5 to 7 ft. Scattered
showers.
.TONIGHT...NW winds 20 to 30 kt. Seas building to 7 to 13 ft. Chance
of showers.
.THU...NW winds diminishing to 5 to 15 kt, then becoming W 5 to 10
kt. Seas subsiding to 5 to 7 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...NW winds 10 to 15 kt, becoming W to NW 5 to 10 kt. Seas 4 to
6 ft.
.FRI NIGHT...S to SW winds less than 10 kt, increasing to 10 to 20
kt. Seas 4 to 5 ft.
.SAT...S winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...S winds 5 to 15 kt, becoming NW 10 to 20 kt. Seas 4 to
5 ft.
.SUN...W to NW winds 15 to 25 kt. Seas building to 6 to 10 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Seas 6 to 11 ft.

$$

ANZ815-230415-
South of Long Island between Montauk Point and Sandy Hook to
1000 fm-
955 AM EST Wed Nov 22 2017

.TODAY...S to SW winds 15 to 25 kt, becoming NW 20 to 30 kt. Seas 3
to 6 ft. Showers.
.TONIGHT...NW winds 20 to 30 kt, becoming N to NW 15 to 20 kt. Seas
building to 6 to 11 ft.
.THU...N to NW winds diminishing to 5 to 15 kt, then becoming W 10
to 15 kt. Seas subsiding to 4 to 6 ft.
.THU NIGHT...W to NW winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NW winds 10 to 15 kt, becoming W 5 to 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...S to SW winds 5 to 15 kt, increasing to 15 to 20 kt.
Seas 4 to 5 ft.
.SAT...S winds 10 to 20 kt, becoming S to SW 10 to 15 kt. Seas 4 to
6 ft.
.SAT NIGHT...Winds veering to W 5 to 15 kt, then becoming NW 10 to
20 kt. Seas 3 to 5 ft.
.SUN...NW winds 15 to 25 kt. Seas building to 5 to 9 ft.
.SUN NIGHT...NW winds 15 to 25 kt. Seas 6 to 10 ft.

$$

.Forecaster Kells. Ocean Prediction Center.
Last Update:14:56Z, 22 November 2017
Updates: Four times per day

FZNT22 KWBC 221455
OFFNT2

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
955 AM EST Wed Nov 22 2017

West central North Atlantic continental shelf and slope waters
beyond 20 nm to 250 nm offshore, including south of Georges Bank
from 1000 fm 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.

ANZ899-230415-
955 AM EST Wed Nov 22 2017

.SYNOPSIS FOR MID ATLC WATERS...A cold front will pass slowly SE
across the area today into tonight as developing low pres moves NE
over the outer waters along the front. High pres will build E over
the N and central waters Thu and Thu night, and pass E of the area
Fri into Fri night as low pres approaches from the S. The low will
then slowly strengthen as it moves NE over the waters late Fri night
and Sat, and pass NE of the region Sat night into Sun. Another high
pres will slowly build E toward the waters late Sun and Sun night.

$$

ANZ820-230415-
Hudson Canyon to Baltimore Canyon to 1000 fm-
955 AM EST Wed Nov 22 2017

.TODAY...W to SW winds 10 to 20 kt, becoming NW 15 to 25 kt. Seas 4
to 7 ft. Scattered showers.
.TONIGHT...N to NW winds 15 to 25 kt. Seas building to 6 to 10 ft.
.THU...N to NW winds diminishing to 5 to 15 kt, then becoming W to
NW 5 to 10 kt. Seas subsiding to 4 to 8 ft.
.THU NIGHT...W winds 10 to 15 kt, becoming NW. Seas subsiding to 3
to 6 ft.
.FRI...NW winds 5 to 15 kt, becoming W to SW. Seas 3 to 6 ft.
.FRI NIGHT...S winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3
to 5 ft.
.SAT...S winds 10 to 20 kt, becoming SW 5 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...W to NW winds 5 to 15 kt, becoming NW 15 to 25 kt. Seas
3 to 5 ft.
.SUN...NW winds 20 to 25 kt. Seas building to 5 to 9 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Seas 5 to 9 ft.

$$

ANZ915-230415-
Between 1000 fm and 38.5N west of 69W-
955 AM EST Wed Nov 22 2017

...GALE WARNING...

.TODAY...S winds 15 to 25 kt, becoming NW 25 to 35 kt. Seas 4 to 7
ft, building to 8 to 13 ft. Scattered showers and TSTMs.
.TONIGHT...N to NW winds diminishing to 15 to 25 kt. Seas 8 to 14
ft. Chance of showers.
.THU...N to NW winds diminishing to 10 to 15 kt, then becoming W to
NW 5 to 10 kt. Seas subsiding to 6 to 10 ft.
.THU NIGHT...W to NW winds 5 to 15 kt. Seas subsiding to 5 to 7 ft.
.FRI...NW winds 10 to 15 kt, becoming W 5 to 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...S to SW winds less than 10 kt, becoming S. Seas
subsiding to 4 to 5 ft.
.SAT...S winds increasing to 10 to 20 kt. Seas 4 to 5 ft.
.SAT NIGHT...Winds veering to W to NW 5 to 15 kt, then becoming NW
15 to 20 kt. Seas 4 to 7 ft.
.SUN...NW winds 15 to 25 kt. Seas building to 6 to 10 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Seas becoming 8 to 11 ft.

$$

ANZ920-230415-
Baltimore Canyon to 69W east of 1000 fm and south of 38.5N to
250 nm offshore-
955 AM EST Wed Nov 22 2017

...STORM WARNING...

.TODAY...S winds 20 to 30 kt, becoming S to SW 40 to 50 kt. Seas 7
to 11 ft, building to 12 to 18 ft. Scattered showers and TSTMs.
.TONIGHT...Winds diminishing to NW 20 to 25 kt, then becoming N 15
to 25 kt. Seas subsiding to 8 to 14 ft.
.THU...N winds diminishing to 10 to 15 kt, then becoming NW 5 to 10
kt. Seas subsiding to 5 to 9 ft.
.THU NIGHT...W to NW winds 5 to 15 kt. Seas 5 to 7 ft.
.FRI...NW winds 5 to 15 kt, diminishing to less than 10 kt. Seas 5
to 7 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming S. Seas
subsiding to 4 to 5 ft.
.SAT...S winds 5 to 15 kt, becoming S to SE 15 to 25 kt. Seas 4 to 5
ft.
.SAT NIGHT...Winds veering to W to SW 15 to 25 kt, then becoming NW.
Seas becoming 4 to 8 ft.
.SUN...NW winds 15 to 25 kt. Seas building to 6 to 11 ft.
.SUN NIGHT...NW winds 20 to 25 kt. Seas 7 to 11 ft.

$$

ANZ905-230415-
East of 69W to the Hague Line between 1000 fm and 39N-
955 AM EST Wed Nov 22 2017

...STORM WARNING...

.TODAY...S winds 20 to 25 kt, increasing to 25 to 35 kt. Seas 5 to 7
ft, building to 8 to 14 ft. Scattered showers.
.TONIGHT...S winds increasing to 45 to 55 kt, then becoming NW 25 to
35 kt. Seas building to 13 to 22 ft. Scattered showers.
.THU...NW winds becoming 10 to 20 kt, then diminishing to 5 to 15
kt. Seas subsiding to 7 to 13 ft.
.THU NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
subsiding to 6 to 8 ft.
.FRI...W to NW winds 5 to 15 kt. Seas 6 to 7 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming S. Seas 5 to 6
ft.
.SAT...S winds increasing to 10 to 15 kt, then becoming 10 to 20 kt.
Seas 4 to 6 ft.
.SAT NIGHT...SE winds increasing to 20 to 30 kt. Seas 4 to 6 ft,
building to 7 to 11 ft.
.SUN...Winds veering to W 15 to 25 kt. Seas 7 to 12 ft.
.SUN NIGHT...W to NW winds 20 to 25 kt. Seas becoming 10 to 13 ft.

$$

ANZ910-230415-
East of 69W and south of 39N to 250 nm offshore-
955 AM EST Wed Nov 22 2017

...STORM WARNING...

.TODAY...S winds 20 to 30 kt, increasing to 45 to 55 kt. Seas 6 to
10 ft, building to 13 to 21 ft. Scattered showers and TSTMs.
.TONIGHT...S to SW winds diminishing to 30 to 40 kt, then becoming
NW 20 to 30 kt. Seas 13 to 22 ft, subsiding to 10 to 15 ft.
Scattered showers.
.THU...N winds becoming 10 to 20 kt, then diminishing to 5 to 10 kt.
Seas subsiding to 7 to 12 ft.
.THU NIGHT...W to NW winds 5 to 10 kt, becoming W 10 to 15 kt. Seas
subsiding to 6 to 8 ft.
.FRI...NW winds 5 to 15 kt. Seas 6 to 7 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming S. Seas
becoming 4 to 6 ft.
.SAT...S to SE winds increasing to 15 to 25 kt. Seas 4 to 5 ft.
.SAT NIGHT...SE winds 20 to 30 kt, becoming NW. Seas building to 6
to 11 ft.
.SUN...W winds 15 to 25 kt. Seas 7 to 11 ft.
.SUN NIGHT...W to NW winds 20 to 25 kt. Seas becoming 10 to 12 ft.

$$

ANZ825-230415-
Baltimore Canyon to Cape Charles Light to 100 nm offshore-
955 AM EST Wed Nov 22 2017

.TODAY...W to NW winds 15 to 25 kt. Seas 5 to 8 ft. Scattered
showers.
.TONIGHT...Winds veering to N 15 to 25 kt. Seas building to 6 to 10
ft.
.THU...N winds diminishing to 10 to 15 kt, then becoming NW 5 to 10
kt. Seas subsiding to 4 to 7 ft.
.THU NIGHT...NW winds 5 to 15 kt. Seas subsiding to 3 to 5 ft.
.FRI...N winds 5 to 10 kt, becoming variable. Seas 3 to 5 ft.
.FRI NIGHT...S to SE winds 5 to 10 kt, becoming S 5 to 15 kt. Seas 3
to 5 ft.
.SAT...SW winds less than 10 kt, becoming W to SW. Seas 2 to 4 ft.
.SAT NIGHT...W to NW winds 5 to 15 kt, becoming NW 15 to 25 kt. Seas
3 to 5 ft.
.SUN...NW winds 15 to 25 kt. Seas building to 4 to 8 ft.
.SUN NIGHT...NW winds 15 to 25 kt. Seas 4 to 8 ft.

$$

ANZ828-230415-
Cape Charles Light to Currituck Beach Light to 100 nm offshore-
955 AM EST Wed Nov 22 2017

.TODAY...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. Scattered
showers.
.TONIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft.
.THU...N winds diminishing to 10 to 15 kt, then becoming N to NW 5
to 10 kt. Seas subsiding to 4 to 7 ft.
.THU NIGHT...N to NW winds 5 to 10 kt. Seas 3 to 6 ft.
.FRI...N to NE winds 5 to 10 kt, becoming E to NE. Seas 3 to 5 ft.
.FRI NIGHT...S to SE winds 5 to 10 kt, becoming S 5 to 15 kt. Seas 3
to 5 ft.
.SAT...Variable winds less than 10 kt, becoming NW. Seas 2 to 4 ft.
.SAT NIGHT...NW winds 5 to 15 kt, becoming N to NW 15 to 25 kt. Seas
building to 3 to 6 ft.
.SUN...N to NW winds 15 to 25 kt. Seas building to 4 to 8 ft.
.SUN NIGHT...NW winds 15 to 20 kt. Seas 5 to 8 ft.

$$

ANZ925-230415-
Baltimore Canyon to Hatteras Canyon between 100 nm and 250 nm
offshore-
955 AM EST Wed Nov 22 2017

...GALE WARNING...

.TODAY...S winds 30 to 40 kt, becoming SW. Seas 10 to 17 ft.
Scattered showers and TSTMs.
.TONIGHT...Winds diminishing to N 15 to 25 kt. Seas subsiding to 8
to 12 ft.
.THU...N winds 10 to 20 kt, becoming NW 5 to 15 kt. Seas subsiding
to 5 to 8 ft.
.THU NIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 5
to 7 ft.
.FRI...N to NW winds 5 to 15 kt, becoming N to NE. Seas 5 to 6 ft.
.FRI NIGHT...E to SE winds 5 to 10 kt, becoming S to SE 5 to 15 kt.
Seas 4 to 5 ft.
.SAT...S to SE winds increasing to 15 to 25 kt. Seas 4 to 7 ft.
.SAT NIGHT...Winds veering to W to NW 10 to 20 kt. Seas 4 to 7 ft.
.SUN...NW winds 15 to 25 kt. Seas building to 6 to 10 ft.
.SUN NIGHT...NW winds 15 to 25 kt. Seas 7 to 11 ft.

$$

ANZ830-230415-
Currituck Beach Light to Cape Hatteras to 100 nm offshore-
955 AM EST Wed Nov 22 2017

.TODAY...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. Scattered
showers and TSTMs.
.TONIGHT...N winds 15 to 25 kt. Seas becoming 7 to 10 ft.
.THU...N winds diminishing to 10 to 15 kt. Seas subsiding to 4 to 8
ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft.
.FRI...N to NE winds 5 to 10 kt, becoming E to NE. Seas 4 to 6 ft.
.FRI NIGHT...SE winds 5 to 10 kt, becoming S. Seas 3 to 5 ft.
.SAT...E to SE winds less than 10 kt, becoming N to NW. Seas 3 to 5
ft.
.SAT NIGHT...NW winds increasing to 10 to 20 kt. Seas 3 to 6 ft.
.SUN...N to NW winds 15 to 20 kt. Seas building to 5 to 8 ft.
.SUN NIGHT...N to NW winds 15 to 20 kt, becoming N 10 to 15 kt. Seas
6 to 8 ft.

$$

ANZ833-230415-
Cape Hatteras to Cape Fear to 100 nm offshore-
955 AM EST Wed Nov 22 2017

.TODAY...NW winds 10 to 20 kt, becoming N 15 to 25 kt. Seas 5 to 9
ft. Scattered showers and TSTMs.
.TONIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft.
.THU...N to NE winds 10 to 20 kt, becoming N 10 to 15 kt. Seas
subsiding to 4 to 8 ft. Isolated showers and TSTMs.
.THU NIGHT...N to NE winds 5 to 10 kt, becoming N 5 to 15 kt. Seas 4
to 6 ft. Scattered showers and TSTMs.
.FRI...E to NE winds 5 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...E to SE winds 5 to 15 kt. Seas 3 to 5 ft.
.SAT...Winds increasing to N to NE 15 to 25 kt. Seas 3 to 6 ft.
.SAT NIGHT...Winds backing to NW 10 to 20 kt. Seas 3 to 6 ft.
.SUN...N winds 10 to 20 kt. Seas 4 to 7 ft.
.SUN NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 5
to 8 ft.

$$

ANZ930-230415-
Hatteras Canyon to Cape Fear between 100 nm and 250 nm offshore-
955 AM EST Wed Nov 22 2017

...GALE WARNING...

.TODAY...S winds 25 to 35 kt, becoming N to NW 15 to 25 kt. Seas 8
to 13 ft. Scattered showers and TSTMs.
.TONIGHT...N winds 15 to 25 kt. Seas subsiding to 7 to 10 ft.
.THU...N winds 10 to 20 kt, becoming 10 to 15 kt. Seas subsiding to
6 to 8 ft.
.THU NIGHT...N winds diminishing to less than 10 kt, then becoming
variable. Seas 5 to 7 ft.
.FRI...E to NE winds 5 to 15 kt, becoming E 10 to 20 kt. Seas 5 to 7
ft.
.FRI NIGHT...E to SE winds 10 to 20 kt, becoming SE 5 to 15 kt. Seas
4 to 6 ft.
.SAT...S to SE winds 10 to 20 kt, becoming W to SW 15 to 25 kt. Seas
4 to 7 ft.
.SAT NIGHT...W winds 10 to 20 kt, becoming NW. Seas 4 to 7 ft.
.SUN...NW winds 10 to 20 kt. Seas 5 to 8 ft.
.SUN NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft.

$$

ANZ835-230415-
Cape Fear to 31N to 1000 fm-
955 AM EST Wed Nov 22 2017

.TODAY...NW winds 5 to 15 kt, becoming N 10 to 20 kt. Seas 4 to 8
ft. Scattered showers.
.TONIGHT...N to NE winds 15 to 25 kt. Seas 4 to 8 ft. Slight chance
of showers and TSTMs.
.THU...E to NE winds 15 to 25 kt. Seas 4 to 8 ft. Scattered showers
and slight chance of TSTMs.
.THU NIGHT...NE winds 15 to 25 kt. Seas 4 to 8 ft. Scattered showers
and TSTMs.
.FRI...E to NE winds 10 to 20 kt. Seas 4 to 7 ft.
.FRI NIGHT...E winds 10 to 20 kt, becoming N to NE. Seas 4 to 7 ft.
.SAT...N to NW winds increasing to 20 to 30 kt. Seas 4 to 7 ft.
.SAT NIGHT...W to NW winds diminishing to 10 to 20 kt. Seas 3 to 6
ft.
.SUN...Winds veering to N 10 to 20 kt, then diminishing to 5 to 15
kt. Seas 3 to 6 ft.
.SUN NIGHT...N winds 10 to 20 kt, becoming NE. Seas 4 to 7 ft.

$$

ANZ935-230415-
Cape Fear to 31N east of 1000 fm to 250 nm offshore-
955 AM EST Wed Nov 22 2017

.TODAY...S to SW winds 10 to 20 kt, becoming N. Seas 6 to 10 ft.
Scattered showers and TSTMs.
.TONIGHT...N to NE winds 15 to 25 kt. Seas 6 to 9 ft.
.THU...E to NE winds 15 to 25 kt. Seas 6 to 8 ft. Chance of showers
and TSTMs.
.THU NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 8 ft. Scattered
showers and TSTMs.
.FRI...E to NE winds 15 to 25 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 20 kt, becoming SW. Seas 5 to 6 ft.
.SAT...S to SW winds 10 to 20 kt, becoming W to SW 15 to 25 kt. Seas
5 to 8 ft.
.SAT NIGHT...W to NW winds 15 to 25 kt. Seas 5 to 8 ft.
.SUN...NW winds 10 to 20 kt, becoming N to NW 10 to 15 kt. Seas
subsiding to 4 to 6 ft.
.SUN NIGHT...N winds 10 to 20 kt. Seas building to 6 to 8 ft.

$$

.Forecaster Kells. Ocean Prediction Center.
Last Update:14:56Z, 22 November 2017
Updates: Four times per day

FZNT01 KWBC 221618
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC WED NOV 22 2017 

CCODE/1:31:04:01:00/AOW/NWS/CCODE 
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 

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W 

SYNOPSIS VALID 1200 UTC NOV 22 
24 HOUR FORECAST VALID 1200 UTC NOV 23 
48 HOUR FORECAST VALID 1200 UTC NOV 24 

.WARNINGS. 

...STORM WARNING... 
.LOW 35N73W 1008 MB MOVING NE 35 KT WHILE RAPIDLY INTENSIFYING. 
WITHIN 300 NM NE AND 420 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 
8 TO 13 FT. ELSEWHERE FROM 31N TO 41N BETWEEN 59W AND 76W WINDS 
TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 48N61W 978 MB. OVER FORECAST WATERS WITHIN 
180 NM W SEMICIRCLE...AND 60 NM NE AND 420 NM SE QUADRANTS WINDS 
40 TO 55 KT. SEAS 9 TO 18 FT. ELSEWHERE WITHIN 180 NM NW...300 
NM NE...780 NM SE AND 540 NM SW QUADRANTS WINDS 25 TO 40 KT. 
SEAS 9 TO 18 FT. ALSO WITHIN 600 NM NE...840 NM SE AND 720 NM SW 
QUADRANTS WINDS TO 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 58N59W 960 MB. OVER FORECAST WATERS WITHIN 
240 NM NE OF A LINE FROM 61N58W TO 56N44W WINDS 40 TO 55 KT. 
SEAS 13 TO 27 FT. ELSEWHERE WITHIN 300 NM NW...600 NM NE....1020 
NM SE AND 120 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 
FT. ALSO FROM 48N TO 66N E OF 65W...AND FROM 40N TO 48N E OF 50W 
WINDS TO 25 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.OVER FORECAST WATERS WITHIN 480 NM NE OF A LINE FROM 64N63W TO 
54N53W WINDS 25 TO 40 KT. SEAS 15 TO 30 FT. ELSEWHERE FROM 54N 
TO 66N E OF 63W WINDS TO 25 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST WITHIN 180 NM NE OF A LINE FROM 66N61W TO 
57N50W WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. ELSEWHERE FROM 55N 
TO 66N BETWEEN 45W AND 63W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 58N59W ABOVE.

...GALE WARNING...
.LOW 50N46W 998 MB MOVING SE 25 KT. FROM 50N TO 54N E OF 
55W...AND WITHIN 1020 NM SE AND 720 NM SW QUADRANTS WINDS 25 TO 
40 KT. SEAS 12 TO 22 FT. ELSEWHERE WITHIN 1080 NM SE AND 900 NM 
SW QUADRANTS WINDS TO 25 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH NEW LOW E OF AREA 
NEAR 36N34W DESCRIBED BELOW.

...GALE WARNING...
.24 HOUR FORECAST LOW 32N66W 1001 MB. FROM 31 TO 34N BETWEEN 60W 
AND 68W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE FROM 31N 
TO 34N BETWEEN 56W AND 67W WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 35N55W 1007 MB. FROM 31N TO 40N BETWEEN 
48W AND 57W WINDS 25 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE FROM 
31N TO 40N BETWEEN 45W AND 60W WINDS TO 25 KT. SEAS TO 9 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW E OF AREA NEAR 36N34W 1000 MB. OVER 
FORECAST WATERS WITHIN 540 NM W SEMICIRCLE WINDS 25 TO 40 KT. 
SEAS 11 TO 22 FT. ELSEWHERE FROM 31N TO 50N E OF 49W WINDS TO 25 
KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW WELL E OF AREA. FROM 31N TO 40N E OF 40W 
WINDS 20 TO 30 KT. SEAS 8 TO 17 FT.

.SYNOPSIS AND FORECAST. 

.24 HOUR FORECAST FROM 31N TO 35N BETWEEN 70W AND 81W WINDS TO 
25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 31N TO 35N BETWEEN 70W AND 81W WINDS 20 
TO 30 KT. SEAS TO 10 FT.

.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM 
50N TO 66N E OF 45W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM 
31N TO 45N E OF 45W WINDS TO 25 KT. SEAS 8 TO 14 FT.

.LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 56N59W TO 
57N61W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE 
FROM 58N63W TO 63N61W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY FROM 55N TO 
57N BETWEEN 58W AND 61W.

.HIGH 37N58W 1030 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 35N50W 1024 MB.
.48 HOUR FORECAST HIGH 36N41W 1024 MB.

.24 HOUR FORECAST NEW HIGH 60N38W 1026 MB.
.48 HOUR FORECAST HIGH MOVED E OF AREA.

.FORECASTER HOLLEY. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 1200 UTC WED NOV 22.
24 HOUR FORECAST VALID 1200 UTC THU NOV 23.
48 HOUR FORECAST VALID 1200 UTC FRI NOV 24.

.WARNINGS.

...GULF OF MEXICO GALE WARNING...
.GULF OF MEXICO LOW PRES NEAR 26N89W 1012 MB WITH COLD FRONT SW 
TO 24N93W AND TO NEAR 23N97W. N OF 26N W OF 90W NE WINDS 20 TO 
30 KT WITH FREQUENT GUSTS TO GALE FORCE. SEAS 8 TO 10 FT. FROM 
22N TO 25N W OF 96W NW TO N WINDS 30 TO 35 KT. SEAS 8 TO 11 FT. 
ELSEWHERE FROM 21N TO 26N W OF 96W NW TO N WINDS 20 TO 30 KT 
WITH FREQUENT GUST TO GALE FORCE. SEAS TO 9 FT. 
.06 HOUR FORECAST LOW PRES NEAR 27N88W 1011 MB WITH COLD FRONT 
TO NEAR 18.5N94W. N OF 26N W OF 89W N TO NE WINDS 20 TO 30 KT 
WITH FREQUENT GUSTS TO GALE FORCE. SEAS 8 TO 10 FT. FROM 22N TO 
25N W OF 96W...AND ALSO S OF 22N W OF 95W NW TO N WINDS 30 TO 35 
KT. SEAS 8 TO 12 FT. ELSEWHERE S OF 26N W OF FRONT NW TO N WINDS 
20 TO 30 KT. SEAS 8 TO 10 FT.
.18 HOUR FORECAST LOW PRES NEAR 27N86.5W 1010 MB WITH COLD FRONT 
TO 18.5N93W. S OF 22N W OF 94W NW TO N WINDS 30 TO 35 KT. SEAS 
10 TO 14 FT. ELSEWHERE S OF 26N W OF FRONT NW TO N WINDS 20 TO 
30 KT. SEAS 8 TO 11 FT. N OF 26N W OF A LINE FROM 30N85W TO 
26N87W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.24 HOUR FORECAST LOW PRES NEAR 27.5N85W 1010 MB WITH COLD FRONT 
TO 21N89W. S OF 21N W OF 96W NW WINDS 30 TO 35 KT. SEAS 10 TO 13 
FT. ELSEWHERE S OF 23N W OF 94W NW WINDS 20 TO 30 KT. SEAS 8 TO 
12 FT. N OF 24N WITHIN 120 NM NW OF FRONT N TO NE WINDS 20 TO 25 
KT. SEAS TO 9 FT. ELSEWHERE S OF 24N W OF FRONT WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN N SWELL.
.48 HOUR FORECAST LOW PRES NEAR 27.583W 1009 MB WITH WEAKENING 
COLD FRONT TO 21N87W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

...ATLC GALE WARNING...
.ATLC LOW PRES NEAR 27N72W 1012 MB WITH DEVELOPING COLD FRONT TO 
21N76W. WITHIN 120 NM E SEMICIRCLE OF LOW WINDS 20 TO 25 KT SEAS 
9 TO 12 FT.
.12 HOUR FORECAST LOW PRES NEAR 29N69W 1008 MB WITH COLD FRONT 
TO 21N74W. WITHIN 150 NM SE SEMICIRCLE OF LOW WINDS 25 TO 35 KT. 
SEAS 10 TO 14 FT. WITHIN NW SEMICIRCLE OF LOW WINDS 20 TO 30 KT. 
SEAS 8 TO 12 FT. ELSEWHERE WITHIN 210 NM EITHER SIDE OF LINE 
FROM 16N56W TO 26N64W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO 
E SWELL.
.24 HOUR FORECAST LOW PRES JUST N OF AREA NEAR 32N66W 1001 MB 
WITH COLD FRONT TO 26N67W AND STATIONARY FRONT TO 21N74W. WITHIN 
90 NM SE SEMICIRCLE OF LOW WINDS 25 TO 25 KT. SEAS 11 TO 16 FT.
N OF 26N E OF FRONT TO 60W S TO SW WINDS 20 TO 30 KT. SEAS 8 TO 
12 FT. N OF 30N BETWEEN 55W AND 60W SE WINDS 20 TO 25 KT. SEAS 8 
FT. ELSEWHERE E OF 60W TO A LINE FROM 31N71W TO 16N60W WINDS 20 
KT OR LESS. SEAS TO 9 FT IN E TO SE SWELL.
.48 HOUR FORECAST LOW WELL N OF AREA WITH ASSOCIATED COLD FRONT 
FROM 31N58W TO 26N64W. N OF 30N E OF FRONT TO 53W S TO SW WINDS 
20 TO 25 KT. SEAS 8 TO 10 FT.  

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N44W TO 29N54W THEN STATIONARY FRONT TO 
29N62W AND WARM FRONT TO 31N67W. N OF FRONT W OF 55W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE N OF FRONT WINDS 
20 KT OR LESS. SEAS TO 9 FT IN NW SWELL. REMAINDER OF AREA E OF 
52W TO A LINE FROM 31N76W TO 23N70W TO 19N52W E TO SE WINDS 20 
TO 25 KT. SEAS 8 TO 11 FT. 
.24 HOUR FORECAST COLD FRONT FROM 28N35W TO 27N46W THEN 
STATIONARY FRONT TO 28N52W AND WARM FRONT TO 31N60W. N OF FRONT 
28N E OF COLD FRONT NW WINDS 20 TO 30 KT. SEAS 10 TO 13 FT. 
ELSEWHERE N OF STATIONARY AND WARM FRONTS E OF 46W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN NW SWELL. ELSEWHERE WITHIN AREA 
BOUNDED BY 26N35W TO 20N46W TO 28N52W TO 26N35W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL. 
.48 HOUR DISSIPATING COLD FRONT FROM 21N35W TO 20N45W. N OF 27N 
E OF 37W NW TO N WINDS 20 TO 25 KT. SEAS 10 TO 15 FT IN NW 
SWELL. ELSEWHERE E OF A LINE FROM 31N49W TO 23N35W WINDS 20 KT 
OR LESS. SEAS 8 TO 12 FT IN NW SWELL. 

.ATLC LOW PRES NEAR 21N42W 1012 MB WITH TROUGH TO 18N47W TO 
17N55W. WITHIN 210 NM NW SEMICIRCLE OF LOW NE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. ELSEWHERE FROM 10N TO 26N BETWEEN 38W AND 
45W...AND FROM 18N TO 22N BETWEEN 45W AND 52W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT PRIMARILY IN NE SWELL. 
.24 HOUR FORECAST LOW PRES NEAR 19N45W 1013 MB. FROM 15N TO 19N 
BETWEEN 55W AND 59W WINDS 20 KT OR LESS. SEAS 8 FT PRIMARILY IN 
NE SWELL. 
.42 HOUR FORECAST LOW DISSIPATED. FROM 20N TO 23N BETWEEN 46W 
AND 52W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

$$

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
Last Update:16:19Z, 22 November 2017
Updates: Four times per day