AGNT40 KWNM 160212
MIMATN

Marine Weather Discussion for N Atlantic Ocean
NWS Ocean Prediction Center Washington DC
1012 PM EDT Wed Aug 15 2018

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

The ongoing wind and significant wave height grids look to be in
excellent shape this evening, and will be not making any 
impactful changes in the upcoming update.

See previous discussion below for details. 

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

This mornings Ascat overpasses missed most of the NT1 and NT2 
offshore waters, and we had no data across any areas where the 
thunderstorms were occurring this morning. Thunderstorms across 
the Mid-Atlantic waters south of Hatteras Canyon continue to 
slowly shift southeast as the mid/upper level winds are shifting 
to west to northest across the northern inner or western zones 
this afternoon. Also, at 18Z, low pressure was centered just 
east of Cape Cod with a weakening cold front extending southwest 
from the low toward Hatteras Canyon. The latest GOES-16 water 
vapor channels indicate the weakening mid and upper level trough 
across the northern offshore waters continues to slowly move 
east this afternoon. We will continue to mention gale force 
winds in thunderstorms in the NT2 text forecast at least through 
today generally across the waters south of Hatteras Canyon. But 
will monitor the trend in the latest GOES-16 imagery and 
lightning data before making final decision. The aforementioned 
weak cold front should dissipate overnight. 

Two stronger cold fronts are expected to move through at least 
the northern offshore waters over the forecast period. The 
latest models remained consistent with the first which is 
forecast to exit the New England coast late tonight into early 
Thu, stall south of New England and lift back north as a warm 
front late Thu through Fri night. Yesterdays 12Z GFS and 12Z 
ECMWF were in much better agreement with the weekend forecast, 
specifically with the next stronger cold front and potential 
developing surface low, late Sat through Sun night, than were 
the more recent runs. The 12Z ECMWF, like yesterdays 12Z run, 
was back to developing a fairly strong surface low off the 
Mid-Atlantic coast late Sat night and Sun. The 12Z GFS is 
generally consistent with the 12Z ECMWF on timing of the front 
and to a somewhat lesser degree the low development. We will be 
using a 75/25 12Z ECMWF/12Z GFS blend for the wind grids 
beginning Fri night, which will bump up the weekend winds 
slightly, but overall keeps continuity. Forecast confidence 
remains about average in the medium range. There is some 
potential that the northeast winds Sat night into early next 
week could be stronger than the 25 kt which is in the forecast 
at this time.   

Seas: The 12Z Wavewatch and 12Z ECMWF WAM are well initialized 
with the west Atlantic wave heights this afternoon, and this 
guidance is in excellent agreement through the end of the week. 
The ECMWF WAM is then slightly higher than the Wavewatch with 
the wave heights within the increasing northeast winds over the 
weekend. We will be using an even blend of the aforementioned 
guidance through Fri, then relying on the ECMWF WAM Fri night 
through the end of the period. 

Extratropical Storm Surge Guidance: No significant storm surge 
is expected through the remainder of the week. Late in the 
weekend, there could be minor surge that develops across the Mid 
Atlantic coast poleward of the stalled front in east to 
northeast onshore flow. This, of course, depends on how strong 
the developing low and associated easterly gradient become, as 
well as how persistent any stronger winds are. At the moment, 
given the model variability, our confidence in any one given 
forecast scenario is low. 


.WARNINGS...Preliminary.

.NT1 New England Waters...
     None.

.NT2 Mid-Atlantic Waters...
     None.

$$

.Forecaster Collins/Clark. Ocean Prediction Center.
Last Update:02:13Z, 16 August 2018
Updates: Four times per day

FZNT21 KWBC 160228
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
1028 PM EDT Wed Aug 15 2018

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.

ANZ898-170230-
1028 PM EDT Wed Aug 15 2018

.SYNOPSIS FOR NEW ENGLAND WATERS...Low pressure just east of the
area will continue NE pulling a low pressure trough across the 
waters this evening. A cold front will then move across the 
waters later tonight into Thu. The front will stall and weaken 
across the far southern portion Thu night into Fri as weak high 
pressure passes over the N waters. Another low will move NE along
the New England coast Fri night into Sat night, while pulling a 
cold front SE over the area. The front will stall S of the waters
Sun through Mon night as high pressure builds S to the coast. 
Low pressure will develop along the stalled front Sat night and 
will track NE just S of the waters Sun into Mon. 

$$

ANZ800-170230-
Gulf of Maine to the Hague Line-
1028 PM EDT Wed Aug 15 2018

.TONIGHT...W to SW winds 5 to 10 kt. Seas 2 to 4 ft. 
.THU...W to NW winds 5 to 15 kt, diminishing to less than 10 kt.
Seas 2 to 4 ft. 
.THU NIGHT...Variable winds less than 10 kt, becoming E. Seas
2 to 4 ft. 
.FRI...SE winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 1 to
3 ft. 
.FRI NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...SW winds 10 to 20 kt, becoming N 15 to 25 kt. Seas 3 to
5 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...NE winds 5 to 15 kt, increasing to 10 to 20 kt.
Seas 3 to 6 ft. 
.MON...E to NE winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 3 to 6 ft. 
.MON NIGHT...E winds 5 to 15 kt, becoming E to NE. Seas 3 to
5 ft. 

$$

ANZ805-170230-
Georges Bank between Cape Cod and 68W north of 1000 fm-
1028 PM EDT Wed Aug 15 2018

.TONIGHT...W winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
4 to 7 ft. 
.THU...W winds 5 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...Variable winds less than 10 kt, becoming SE. Seas
2 to 4 ft. 
.FRI...S to SE winds 5 to 10 kt, becoming S to SW 5 to 15 kt.
Seas 2 to 3 ft. 
.FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...W to SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...N to NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...NE winds 15 to 20 kt. Seas 4 to 7 ft. 
.MON...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 

$$

ANZ900-170230-
Georges Bank between 68W and the Hague Line-
1028 PM EDT Wed Aug 15 2018

.TONIGHT...SW winds 10 to 20 kt, becoming W, then, diminishing
to 5 to 15 kt. Seas 4 to 6 ft. Scattered showers and TSTMs. 
.THU...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...W to NW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft. 
.FRI...SE winds 5 to 10 kt, becoming S to SW. Seas 2 to 3 ft. 
.FRI NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 3 to 5 ft. 
.SAT...W to SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N to NW winds 10 to 20 kt, becoming N to NE. Seas
4 to 7 ft. 
.SUN...NE winds 15 to 25 kt. Seas 4 to 7 ft. 
.SUN NIGHT...NE winds 15 to 25 kt. Seas 5 to 9 ft. 
.MON...NE winds 15 to 20 kt. Seas 5 to 9 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 

$$

ANZ810-170230-
South of New England between the Great South Channel and Montauk
Point to 1000 fm-
1028 PM EDT Wed Aug 15 2018

.TONIGHT...W winds 10 to 20 kt, becoming 10 to 15 kt. Seas 4 to
7 ft. 
.THU...W winds 5 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...W winds 5 to 15 kt. Seas 3 to 4 ft. 
.FRI...SW winds 5 to 15 kt, becoming S to SW 10 to 20 kt. Seas
2 to 3 ft. 
.FRI NIGHT...S to SW winds 15 to 20 kt. Seas 3 to 5 ft. 
.SAT...W to SW winds 10 to 20 kt, becoming W 10 to 15 kt. Seas
3 to 5 ft. 
.SAT NIGHT...N to NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...NE winds 15 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...NE winds 15 to 20 kt. Seas 5 to 8 ft. 
.MON...NE winds 15 to 20 kt. Seas 4 to 7 ft. 
.MON NIGHT...NE winds 5 to 15 kt. Seas 4 to 6 ft. 

$$

ANZ815-170230-
South of Long Island between Montauk Point and Sandy Hook to
1000 fm-
1028 PM EDT Wed Aug 15 2018

.TONIGHT...W winds 10 to 20 kt, becoming 10 to 15 kt. Seas 3 to
6 ft. 
.THU...W to SW winds 5 to 15 kt. Seas 2 to 4 ft. 
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. 
.FRI...S to SW winds 10 to 15 kt, becoming S 15 to 20 kt. Seas
2 to 4 ft. 
.FRI NIGHT...S to SW winds 10 to 20 kt, becoming W to SW. Seas
3 to 5 ft. 
.SAT...W winds 5 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds 10 to 20 kt, becoming E. Seas 3 to 5 ft. 
.SUN...E to NE winds 20 to 25 kt. Seas 5 to 8 ft. 
.SUN NIGHT...NE winds 15 to 20 kt. Seas 4 to 8 ft. 
.MON...NE winds 15 to 20 kt. Seas 4 to 7 ft. 
.MON NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 4 to 5 ft. 

$$

.Forecaster Collins. Ocean Prediction Center.
Last Update:02:29Z, 16 August 2018
Updates: Four times per day

FZNT22 KWBC 160237
OFFNT2

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
1037 PM EDT Wed Aug 15 2018

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.

ANZ899-170215-
1037 PM EDT Wed Aug 15 2018

.SYNOPSIS FOR MID ATLC WATERS...A low pressure trough across 
the northern and central waters will dissipate this evening. 
High pressure just SE of the southern waters will persist Thu 
into Fri, then weaken Fri night. A cold front will approach the 
coast from the W Fri into Sat, then move SE over the N waters 
later Sat and Sat night. The front will stall across the northern
and central waters Sun and will remain nearly stationary through
Mon night. Low pressure will develop along the front near the 
coast Sat night and will track NE across the waters Sun into Mon.

$$

ANZ820-170215-
Hudson Canyon to Baltimore Canyon to 1000 fm-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...W to SW winds 10 to 20 kt, becoming W 10 to 15 kt.
Seas 3 to 5 ft. 
.THU...W winds 5 to 15 kt, becoming SW. Seas 2 to 4 ft. 
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. 
.FRI...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 2 to
4 ft. Chance of showers and TSTMs.
.FRI NIGHT...S to SW winds 10 to 20 kt, becoming W to SW. Seas
3 to 5 ft. 
.SAT...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...W to SW winds 5 to 15 kt, becoming E 10 to 20 kt.
Seas 3 to 5 ft. 
.SUN...NE winds 15 to 25 kt. Seas 4 to 8 ft. 
.SUN NIGHT...NE winds 15 to 20 kt. Seas 4 to 8 ft. 
.MON...NE winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
4 to 6 ft. 
.MON NIGHT...E to NE winds 5 to 15 kt, becoming E 5 to 10 kt.
Seas 3 to 5 ft. 

$$

ANZ915-170215-
Between 1000 fm and 38.5N west of 69W-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...W winds 15 to 20 kt. Seas 4 to 7 ft. Scattered
showers and TSTMs early. 
.THU...W winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...W to SW winds 10 to 15 kt. Seas 2 to 4 ft. 
.FRI...S to SW winds 10 to 15 kt. Seas 2 to 3 ft. 
.FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...W to SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...W winds 10 to 20 kt, becoming NE. Seas 3 to 6 ft. 
.SUN...NE winds 10 to 20 kt. Seas 4 to 8 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.MON...NE winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to
7 ft. 
.MON NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 5 to 6 ft. 

$$

ANZ920-170215-
Baltimore Canyon to 69W east of 1000 fm and south of 38.5N to
250 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...W winds 10 to 20 kt. Seas 4 to 7 ft. Scattered
showers and TSTMs early. 
.THU...W winds 5 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...W to SW winds 10 to 15 kt, diminishing to 5 to
10 kt. Seas 2 to 4 ft. Scattered showers and TSTMs. 
.FRI...SW winds 5 to 15 kt. Seas 2 to 3 ft. Scattered showers
and TSTMs. 
.FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 6 ft. 
.SAT...W to SW winds 10 to 20 kt. Seas 4 to 7 ft. 
.SAT NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 8 ft. 
.SUN...W to SW winds 15 to 25 kt. Seas 6 to 10 ft. 
.SUN NIGHT...NE winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 6 to 8 ft. 
.MON...NE winds 5 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds less than 10 kt, becoming variable. Seas
4 to 6 ft. 

$$

ANZ905-170215-
East of 69W to the Hague Line between 1000 fm and 39N-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...W to SW winds 15 to 25 kt. Seas 5 to 7 ft. Scattered
showers and TSTMs. 
.THU...W winds 10 to 20 kt. Seas 4 to 7 ft. 
.THU NIGHT...W winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 3 to 5 ft. 
.FRI...W to SW winds less than 10 kt, becoming SW. Seas 3 to
4 ft. 
.FRI NIGHT...SW winds 10 to 15 kt, becoming 10 to 20 kt. Seas
2 to 4 ft. 
.SAT...SW winds 15 to 20 kt. Seas 3 to 6 ft. 
.SAT NIGHT...W winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 6 ft. 
.SUN...N to NE winds 5 to 15 kt, becoming NE 10 to 20 kt. Seas
4 to 7 ft. 
.SUN NIGHT...NE winds 15 to 25 kt. Seas 5 to 9 ft. 
.MON...NE winds 10 to 20 kt. Seas 6 to 10 ft. 
.MON NIGHT...NE winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 5 to 7 ft. 

$$

ANZ910-170215-
East of 69W and south of 39N to 250 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...W to SW winds 15 to 25 kt. Seas 5 to 7 ft. Scattered
showers and TSTMs. 
.THU...W winds 10 to 15 kt, becoming 10 to 20 kt. Seas 4 to
6 ft. 
.THU NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...W to SW winds 5 to 10 kt, becoming SW 10 to 15 kt. Seas
3 to 4 ft. Chance of showers and TSTMs. 
.FRI NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT...W to SW winds 15 to 20 kt. Seas 3 to 6 ft. 
.SAT NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. 
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 6 to 8 ft. 
.MON...Variable winds 5 to 15 kt, becoming W. Seas 5 to 7 ft. 
.MON NIGHT...Variable winds less than 10 kt. Seas 5 to 6 ft. 

$$

ANZ825-170215-
Baltimore Canyon to Cape Charles Light to 100 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...SW winds 5 to 15 kt. Seas 2 to 4 ft. 
.THU...W to SW winds 5 to 10 kt, becoming S to SW 5 to 15 kt.
Seas 2 to 3 ft. 
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 2 to 3 ft.
Scattered showers and TSTMs. 
.FRI...SW winds 10 to 15 kt, becoming S to SW 15 to 20 kt. Seas
2 to 3 ft. Scattered showers and TSTMs. 
.FRI NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...W to SW winds 10 to 15 kt, becoming SW 10 to 20 kt. Seas
3 to 5 ft. 
.SAT NIGHT...SW winds 10 to 20 kt, becoming W. Seas 3 to 6 ft. 
.SUN...W winds 5 to 15 kt, becoming NE 10 to 20 kt. Seas 5 to
8 ft. 
.SUN NIGHT...NE winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft. 
.MON...NE winds 5 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E to SE winds less than 10 kt. Seas 3 to 4 ft. 

$$

ANZ828-170215-
Cape Charles Light to Currituck Beach Light to 100 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...S to SW winds 10 to 15 kt. Seas 2 to 4 ft. Scattered
TSTMs. 
.THU...W to SW winds 5 to 10 kt, becoming S to SW 5 to 15 kt.
Seas 2 to 4 ft. Scattered showers and TSTMs. 
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Scattered
showers and TSTMs. 
.FRI...SW winds 10 to 15 kt, becoming S to SW 10 to 20 kt. Seas
2 to 4 ft. Scattered showers and TSTMs. 
.FRI NIGHT...SW winds 15 to 20 kt. Seas 3 to 6 ft. 
.SAT...SW winds 15 to 25 kt. Seas 3 to 6 ft. 
.SAT NIGHT...SW winds 15 to 25 kt, becoming W. Seas 4 to 7 ft. 
.SUN...W winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...W winds 10 to 20 kt, becoming variable 5 to 15 kt.
Seas 3 to 6 ft. 
.MON...NE winds less than 10 kt, increasing to 5 to 15 kt. Seas
4 to 6 ft. 
.MON NIGHT...E winds less than 10 kt, becoming variable. Seas
3 to 4 ft. 

$$

ANZ925-170215-
Baltimore Canyon to Hatteras Canyon between 100 nm and 250 nm
offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...W to SW winds 10 to 15 kt. Seas 3 to 6 ft. Scattered
showers and TSTMs. 
.THU...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered
showers and TSTMs. 
.THU NIGHT...SW winds 5 to 15 kt. Seas 2 to 4 ft. Scattered
showers and TSTMs. 
.FRI...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 2 to
4 ft. Scattered showers and TSTMs.
.FRI NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...SW winds 15 to 25 kt. Seas 4 to 7 ft. 
.SAT NIGHT...SW winds 15 to 25 kt. Seas 4 to 8 ft. 
.SUN...SW winds 15 to 25 kt, becoming W. Seas 5 to 9 ft. 
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 7 ft. 
.MON...W to SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...W to SW winds 10 to 20 kt, diminishing to 5 to
15 kt. Seas 4 to 5 ft. 

$$

ANZ830-170215-
Currituck Beach Light to Cape Hatteras to 100 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Scattered
showers and TSTMs. 
.THU...W to SW winds 5 to 15 kt. Seas 2 to 4 ft. Scattered
showers and TSTMs. 
.THU NIGHT...SW winds 10 to 15 kt, becoming W to SW 10 to 20 kt.
Seas 2 to 4 ft. Scattered showers and TSTMs. 
.FRI...W to SW winds 10 to 15 kt, becoming SW 15 to 20 kt. Seas
2 to 4 ft. Scattered showers and TSTMs. 
.FRI NIGHT...SW winds 15 to 20 kt. Seas 3 to 6 ft. 
.SAT...SW winds 15 to 25 kt. Seas 3 to 6 ft. 
.SAT NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. 
.SUN...W to SW winds 15 to 25 kt. Seas 4 to 7 ft. 
.SUN NIGHT...W winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...W winds 5 to 15 kt, becoming variable. Seas 4 to 5 ft. 
.MON NIGHT...SW winds less than 10 kt, increasing to 5 to 15 kt.
Seas 3 to 5 ft. 

$$

ANZ833-170215-
Cape Hatteras to Cape Fear to 100 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...SW winds 10 to 15 kt. Winds to 35 kt possible in
TSTMs. Seas 3 to 5 ft. Scattered showers and TSTMs. 
.THU...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered
showers and TSTMs. 
.THU NIGHT...SW winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 3 to 4 ft. Scattered showers and TSTMs. 
.FRI...W to SW winds 10 to 15 kt, becoming SW 15 to 20 kt. Seas
3 to 4 ft. Scattered showers and TSTMs. 
.FRI NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. 
.SAT...SW winds 15 to 25 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SW winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...SW winds 15 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...W to SW winds 10 to 20 kt, becoming W 10 to 15 kt.
Seas 3 to 5 ft. 
.MON...W to SW winds 5 to 15 kt. Seas 2 to 4 ft. 
.MON NIGHT...SW winds 5 to 15 kt. Seas 2 to 4 ft. 

$$

ANZ930-170215-
Hatteras Canyon to Cape Fear between 100 nm and 250 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...SW winds 5 to 15 kt. Winds to 35 kt possible in
TSTMs. Seas 4 to 5 ft. Scattered showers and TSTMs. 
.THU...SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers
and TSTMs. 
.THU NIGHT...SW winds 10 to 15 kt, becoming 10 to 20 kt. Seas
3 to 4 ft. Scattered showers and TSTMs.
.FRI...SW winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to
4 ft. Scattered showers and TSTMs.
.FRI NIGHT and SAT...SW winds 10 to 20 kt. Seas 3 to 6 ft.
.SAT NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. 
.SUN...SW winds 15 to 20 kt. Seas 4 to 8 ft. 
.SUN NIGHT...SW winds 10 to 20 kt. Seas 3 to 6 ft. 
.MON and MON NIGHT...SW winds 5 to 15 kt. Seas 3 to 5 ft.

$$

ANZ835-170215-
Cape Fear to 31N to 1000 fm-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...S to SW winds 5 to 15 kt, becoming SW 10 to 20 kt.
Winds to 35 kt possible in TSTMs. Seas 3 to 5 ft. Scattered 
showers and TSTMs. 
.THU...SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers
and TSTMs. 
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 4 ft.
Scattered showers and TSTMs. 
.FRI...SW winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to
4 ft. Scattered showers and TSTMs.
.FRI NIGHT and SAT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 6 ft. 
.SUN...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SW winds 5 to 15 kt. Seas 2 to 4 ft.
.MON...W to SW winds 5 to 15 kt. Seas 2 to 3 ft. 
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. 

$$

ANZ935-170215-
Cape Fear to 31N east of 1000 fm to 250 nm offshore-
1037 PM EDT Wed Aug 15 2018

.TONIGHT...SW winds 5 to 15 kt. Winds to 35 kt possible in 
TSTMs. Seas 4 to 5 ft. Scattered showers and TSTMs. 
.THU...SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers
and TSTMs. 
.THU NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered
showers and TSTMs. 
.FRI...SW winds 5 to 15 kt. Seas 2 to 4 ft. Scattered showers
and TSTMs. 
.FRI NIGHT...SW winds 5 to 15 kt. Seas 2 to 4 ft.
.SAT...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
5 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...SW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 3 to
5 ft. 
.SUN NIGHT through MON NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 
ft.

$$

.Forecaster Collins. Ocean Prediction Center.
Last Update:02:38Z, 16 August 2018
Updates: Four times per day

FZNT01 KWBC 160334
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC THU AUG 16 2018 

CCODE/1:31:04:01:00/AOW+AOE/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. 

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION 
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE). 

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

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH 
AMERICAN ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.SHTML 

SECURITE 

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

SYNOPSIS VALID 0000 UTC AUG 16. 
24 HOUR FORECAST VALID 0000 UTC AUG 17. 
48 HOUR FORECAST VALID 0000 UTC AUG 18. 

.WARNINGS. 

...TROPICAL STORM WARNING... 
.SUBTROPICAL STORM ERNESTO NEAR 39.7N 45.1W 1008 MB AT 0300 UTC 
AUG 16 MOVING NE OR 025 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 35 
KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE 
QUADRANT AND 140 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM NE QUADRANT AND 160 NM SE QUADRANT WITH SEAS TO 15 FT. 
.24 HOUR FORECAST SUBTROPICAL STORM ERNESTO NEAR 43.7N 40.0W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER 
WITHIN 150 NM NE QUADRANT AND 180 NM SE QUADRANT WITH SEAS TO 20 
FT. 
.48 HOUR FORECAST POST-TROPICAL CYCLONE ERNESTO NEAR 49.0N 
27.9W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM 
FORCE WINDS WITHIN 70 NM NE QUADRANT...150 NM SE QUADRANT...AND 
120 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE 
QUADRANT...300 NM SE QUADRANT...270 NM SW QUADRANT...AND 180 NM 
NW QUADRANT WITH SEAS TO 23 FT.
.72 HOUR FORECAST POST-TROPICAL CYCLONE ERNESTO NEAR 54.0N 
12.1W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST...DISSIPATED.

...GALE WARNING... 
.LOW 57N50W 998 MB MOVING NE 25 KT. OVER FORECAST WATERS FROM 
49N TO 59N BETWEEN 38W AND 57W WINDS 20 TO 30 KT. SEAS TO 10 FT. 
.18 HOUR FORECAST LOW 60N35W 991 MB. WITHIN 180 NM N...300 NM 
W...AND 480 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW E OF AREA 61N31W 989 MB. OVER FORECAST 
WATERS WITHIN 300 NM SW QUADRANT WINDS 25 TO 35 KT. SEAS 9 TO 15 
FT. ELSEWHERE WITHIN 360 NM NW QUADRANT WINDS TO 25 KT. SEAS TO 
9 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.

.SYNOPSIS AND FORECAST. 

.EXCEPT WHERE NOTED IN WARNINGS SECTION ABOVE IN ASSOCIATION 
WITH SUBTROPICAL STORM ERNESTO...FROM 34N TO 43N BETWEEN 39W AND 
48W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST FROM 37N TO 47N BETWEEN 35W AND 44W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT...EXCEPT WHERE NOTED ABOVE. 
.48 HOUR FORECAST CONDITIONS MOVED E OF AREA.

.LOW 43N66W 1009 MB MOVING E 25 KT. WITHIN 240 NM S QUADRANT 
WINDS TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LOW DISSIPATED. FROM 39N TO 44N BETWEEN 49W 
AND 56W AREA OF W TO SW WINDS TO 25 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST CONDITIONS DESCRIBED BELOW WITH LOW 50N39W.

.LOW 49N63W 1006 MB MOVING SE 20 KT. WITHIN 180 NM N AND NE 
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 48N52W 1007 MB. WITHIN 300 NM N SEMICIRCLE 
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 50N39W 1006 MB. FROM 36N TO 52N BETWEEN 
35W AND 43W WINDS TO 25 KT. SEAS TO 10 FT.

.48 HOUR FORECAST LOW 61N58W 992 MB. OVER FORECAST WATERS FROM 
53N TO 65N W OF 48W WINDS 20 TO 30 KT. SEAS TO 12 FT.

.48 HOUR FORECAST NEW LOW 65N37W 1001 MB. WITHIN 180 NM S 
QUADRANT WINDS TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM OF 
66N60W AND 49N61W...AND WITHIN 240 NM OF 53N51W. 
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM OF 65N61W...AND FROM 
46N TO 51N BETWEEN 44W AND 52W. 
.48 HOUR FORECAST DENSE FOG N OF 61N W OF 58W...AND FROM 47N TO 
51N E OF 47W.

.24 HOUR FORECAST NEW HIGH 55N54W 1018 MB. 
.48 HOUR FORECAST HIGH 53N46W 1014 MB.

.24 HOUR FORECAST HIGH 32N70W 1025 MB. 
.48 HOUR FORECAST LITTLE CHANGE.

.FORECASTER NOLT. 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 0000 UTC THU AUG 16.
24 HOUR FORECAST VALID 0000 UTC FRI AUG 17.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.CARIBBEAN 24 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 76W 
NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 11N TO 13.5N BETWEEN 69W AND 75W NE WINDS 
20 TO 25 KT. SEAS TO 8 FT. 

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

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.
Last Update:03:35Z, 16 August 2018
Updates: Four times per day