FZNT21 KWBC 182023
OFFNT1
Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
423 PM EDT Tue Aug 18 2026
New England continental shelf and slope waters from 60 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.
Locally higher winds and seas can be expected in and near tstms.
ANZ898-190830-
423 PM EDT Tue Aug 18 2026
.SYNOPSIS FOR NEW ENGLAND WATERS...Low pressure over Georges Bank
this evening will slowly move E of the area early tonight while
pulling a cold front across the waters. Weak high pressure will
build E into the area tonight into Wed, then shift E of the
region Wed night. Another cold front will move slowly S across
the waters Thu into Thu night, then stall S of the area Fri and
Fri night as weak low pressure forms along the front. The front
will then lift N across the area as a warm front Sat into Sun as
low pressure tracks NE along the coast, before another cold front
moves offshore Sun night.
$$
ANZ800-190830-
Gulf of Maine to the Hague Line-
423 PM EDT Tue Aug 18 2026
.TONIGHT...N winds 5 to 10 kt, becoming NW. Seas 4 to 7 ft.
Slight chance of showers. Areas of fog with vsby 1 nm or less.
.WED...S to SW winds less than 10 kt, becoming S. Seas 3 to
5 ft. Areas of fog with vsby 1 nm or less.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Areas of
fog with vsby 1 nm or less.
.THU...W to SW winds 5 to 10 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less.
.THU NIGHT...W to SW winds less than 5 kt, becoming N to NW.
Seas 3 to 4 ft.
.FRI...N to NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...Variable winds less than 5 kt, becoming NE. Seas
3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E to SE winds 10 to 15 kt, diminishing to 5 to
10 kt. Seas 3 to 4 ft.
.SUN...E to SE winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW. Seas 4 to 5 ft.
$$
ANZ805-190830-
Georges Bank between Cape Cod and 68W north of 1000 FM-
423 PM EDT Tue Aug 18 2026
.TONIGHT...N to NW winds less than 10 kt. Seas 3 to 6 ft. Areas
of fog with vsby 1 nm or less.
.WED...Variable winds less than 10 kt, becoming S. Seas 3 to
4 ft. Areas of fog with vsby 1 nm or less.
.WED NIGHT...S winds 5 to 15 kt, becoming SW 5 to 10 kt. Seas
3 to 4 ft. Areas of fog with vsby 1 nm or less.
.THU...W to SW winds 5 to 10 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less.
.THU NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI...N to NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 5 to 10 kt, becoming E. Seas 3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 5 ft.
.SUN...S to SW winds 5 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft.
$$
ANZ900-190830-
Georges Bank between 68W and the Hague Line-
423 PM EDT Tue Aug 18 2026
.TONIGHT...NW winds 5 to 10 kt. Seas 4 to 8 ft. Slight chance of
showers. Areas of fog with vsby 1 nm or less.
.WED...Variable winds less than 5 kt, becoming S to SW. Seas
3 to 5 ft. Areas of fog with vsby 1 nm or less.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less.
.THU...Variable winds less than 10 kt, becoming SW. Seas 3 to
4 ft. Areas of fog with vsby 1 nm or less.
.THU NIGHT...W to SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 5 kt, becoming N to NE. Seas
3 to 4 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 5 ft.
.SUN...S winds 5 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.
$$
ANZ810-190830-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
423 PM EDT Tue Aug 18 2026
.TONIGHT...N winds 5 to 10 kt, becoming variable. Seas 3 to
5 ft.
.WED...S to SW winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...W to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...W to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU NIGHT...W to NW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft.
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas
3 to 4 ft.
.SAT...E winds 5 to 15 kt, becoming E to SE 5 to 10 kt. Seas
3 to 4 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt, becoming SW. Seas 4 to
5 ft.
.SUN...S to SW winds 5 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
$$
ANZ815-190830-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
423 PM EDT Tue Aug 18 2026
.TONIGHT...Variable winds less than 5 kt. Seas 3 to 4 ft. Chance
of tstms.
.WED...S winds less than 5 kt, becoming SW. Seas 3 to 4 ft.
Scattered showers and tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...W winds 5 to 10 kt, becoming variable. Seas 3 to 4 ft.
Chance of tstms.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI...NE winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E to NE winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 3 to
4 ft.
.SAT NIGHT...E winds less than 10 kt, becoming variable. Seas
4 to 5 ft.
.SUN...S winds less than 5 kt, becoming SW 5 to 15 kt. Seas 3 to
5 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 4 to 6 ft.
$$
.Forecaster Kells. Ocean Prediction Center.
Last Update: Tue, 18-Aug-2026 20:25:42 UTC
Updates: Four times per day
FZNT22 KWBC 182024
OFFNT2
Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
424 PM EDT Tue Aug 18 2026
West central North Atlantic continental shelf and slope waters
beyond 60 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.
Locally higher winds and seas can be expected in and near tstms.
ANZ899-190830-
424 PM EDT Tue Aug 18 2026
.SYNOPSIS FOR MID ATLC WATERS...A cold front will move slowly SE
across waters early tonight, then stall over the N portion later
tonight into Fri night as a series of weak low pressure centers
track E along the front. The front will return N of the area as
a warm front Sat into Sat night. A high pressure ridge will
persist well to the S of the region tonight through Sun night as
a low pressure trough continues just inland along the SE coast.
Weak high pressure will build SE over the far N waters tonight
into Wed, then shift E of the region Wed night. Another cold
front will move slowly SE off the Mid-Atlc coast Sun night.
$$
ANZ820-190830-
Hudson Canyon to Baltimore Canyon to 1000 FM-
424 PM EDT Tue Aug 18 2026
.TONIGHT...E winds less than 5 kt, becoming variable. Seas 3 to
4 ft. Chance of tstms.
.WED...Variable winds less than 5 kt, becoming W to SW. Seas
3 to 4 ft. Scattered showers and tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...S to SW winds less than 10 kt. Seas 3 to 4 ft. Chance of
tstms.
.THU NIGHT...Variable winds less than 10 kt, becoming N. Seas
3 to 4 ft.
.FRI...NE winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E to NE winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt. Seas
3 to 5 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 4 to 5 ft.
.SUN...S winds 5 to 10 kt, becoming SW 5 to 15 kt. Seas 3 to
5 ft.
.SUN NIGHT...SW winds 10 to 15 kt, becoming W to SW 5 to 10 kt.
Seas 4 to 5 ft.
$$
ANZ915-190830-
Between 1000FM and 38.5 N west of 69 W-
424 PM EDT Tue Aug 18 2026
.TONIGHT...N to NE winds 5 to 10 kt, becoming variable. Seas
3 to 5 ft. Scattered showers and tstms.
.WED...Variable winds less than 5 kt, becoming S to SW. Seas
3 to 4 ft. Scattered showers and tstms.
.WED NIGHT...W to SW winds less than 10 kt. Seas 3 to 4 ft.
.THU...W winds 5 to 10 kt, becoming SW. Seas 3 to 4 ft. Chance
of tstms.
.THU NIGHT...SW winds less than 10 kt, becoming variable. Seas
3 to 4 ft.
.FRI...Variable winds less than 10 kt, becoming N to NE. Seas
3 to 4 ft.
.FRI NIGHT...NE winds less than 10 kt, becoming E. Seas 3 to
4 ft.
.SAT...E to SE winds 5 to 15 kt, becoming S to SE 5 to 10 kt.
Seas 3 to 4 ft.
.SAT NIGHT...S winds 5 to 15 kt, becoming SW. Seas 4 to 5 ft.
.SUN...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 4 to
5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
$$
ANZ920-190830-
Baltimore Canyon to 69W east of 1000 FM and south of 38.5N to
250 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
Scattered showers and tstms.
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...W to NW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft. Scattered showers and tstms.
.THU...Variable winds less than 10 kt, becoming S to SW. Seas
3 to 4 ft. Scattered showers and tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming E to SE.
Seas 3 to 4 ft.
.SAT...S to SE winds 5 to 15 kt, becoming S to SW 10 to 15 kt.
Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
$$
ANZ905-190830-
East of 69W to the Hague Line between 1000 FM and 39N-
424 PM EDT Tue Aug 18 2026
.TONIGHT...S to SW winds 15 to 25 kt, becoming W to SW 10 to
20 kt, then, becoming NW less than 10 kt. Seas 6 to 10 ft.
Scattered showers and tstms.
.WED...Variable winds less than 10 kt. Seas 3 to 6 ft.
.WED NIGHT...Variable winds less than 5 kt. Seas 3 to 4 ft.
Scattered tstms.
.THU...Variable winds less than 5 kt, becoming W. Seas 3 to
4 ft. Scattered showers and tstms.
.THU NIGHT...W to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 5 kt. Seas 3 to 4 ft.
.FRI NIGHT...Variable winds less than 5 kt. Seas 3 to 4 ft.
.SAT...E winds less than 10 kt, becoming SE. Seas 3 to 4 ft.
.SAT NIGHT...S winds 5 to 15 kt. Seas 3 to 5 ft.
.SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 5 to 6 ft.
$$
ANZ910-190830-
East of 69W and south of 39N to 250 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...W to SW winds 10 to 20 kt, diminishing to 5 to 15 kt,
then, becoming variable. Seas 5 to 9 ft. Showers and tstms.
.WED...Variable winds less than 5 kt, becoming S to SW. Seas
3 to 5 ft. Scattered showers and tstms.
.WED NIGHT...S to SW winds less than 10 kt, becoming W to NW.
Seas 3 to 4 ft. Scattered showers and tstms.
.THU...NW winds less than 10 kt, becoming W. Seas 3 to 4 ft.
Scattered showers and tstms.
.THU NIGHT...W to SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 5 kt, becoming SW. Seas 3 to
4 ft.
.FRI NIGHT...Variable winds less than 5 kt. Seas 3 to 4 ft.
.SAT...S to SE winds 5 to 10 kt, becoming S 5 to 15 kt. Seas
3 to 4 ft.
.SAT NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...SW winds 15 to 20 kt. Seas 5 to 6 ft.
.SUN NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 5 to 6 ft.
$$
ANZ825-190830-
Baltimore Canyon to Cape Charles Light to 100 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...Variable winds less than 5 kt, becoming N to NE,
then, becoming variable. Seas 3 to 4 ft. Scattered showers and
tstms.
.WED...N winds less than 5 kt, becoming variable. Seas 3 to
4 ft. Chance of showers and tstms.
.WED NIGHT...S to SE winds less than 10 kt. Seas 3 to 4 ft.
.THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Chance of tstms.
.THU NIGHT...SW winds 5 to 10 kt, becoming N to NW. Seas 3 to
4 ft.
.FRI...E to NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 5 to 10 kt, becoming SE. Seas 3 to 4 ft.
.SAT...S winds 5 to 10 kt, becoming SW. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SUN...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S to SW winds 10 to 15 kt, becoming SW 5 to 10 kt.
Seas 4 to 5 ft.
$$
ANZ828-190830-
Cape Charles Light to Currituck Beach Light to 100 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...N to NW winds less than 5 kt, becoming variable,
then, becoming N to NE. Seas 3 to 4 ft. Scattered showers and
tstms.
.WED...NE winds less than 5 kt, becoming variable. Seas 3 to
4 ft. Chance of showers and tstms.
.WED NIGHT...E to SE winds 5 to 10 kt, becoming S. Seas 3 to
4 ft. Scattered showers and tstms.
.THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Scattered showers and
tstms.
.THU NIGHT...S to SW winds 5 to 10 kt, becoming W to NW. Seas
3 to 4 ft.
.FRI...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.SAT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft.
$$
ANZ925-190830-
Baltimore Canyon to Hatteras Canyon between 100 NM and 250 NM
offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...W to SW winds 5 to 15 kt, becoming SW. Seas 3 to
4 ft. Scattered showers and tstms.
.WED...SW winds less than 10 kt, increasing to 5 to 15 kt. Seas
3 to 4 ft. Scattered showers and tstms.
.WED NIGHT...Variable winds less than 10 kt, becoming S to SW.
Seas 3 to 4 ft. Scattered showers and tstms.
.THU...Variable winds less than 10 kt, becoming S to SW. Seas
3 to 4 ft. Scattered showers and tstms.
.THU NIGHT...S to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S to SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT...S to SW winds 5 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...S to SW winds 10 to 20 kt, becoming SW 10 to 15 kt.
Seas 4 to 6 ft.
$$
ANZ830-190830-
Currituck Beach Light to Cape Hatteras to 100 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...W to SW winds 5 to 15 kt, diminishing to less than
10 kt. Seas 3 to 4 ft. Scattered showers and tstms.
.WED...SW winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...Variable winds less than 10 kt, becoming S to SW.
Seas 3 to 4 ft. Scattered showers and tstms.
.THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Scattered showers and
tstms.
.THU NIGHT...S winds 5 to 10 kt, becoming SW. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt, becoming S. Seas 3 to
4 ft.
.FRI NIGHT...S winds 5 to 10 kt, becoming SW 5 to 15 kt. Seas
3 to 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft.
.SUN...SW winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
4 to 6 ft.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 6 ft.
$$
ANZ833-190830-
Cape Hatteras to Cape Fear to 100 NM Offshore.-
424 PM EDT Tue Aug 18 2026
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered showers
and tstms.
.WED NIGHT...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.THU...S to SW winds 5 to 10 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.
.FRI...S to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds 10 to 15 kt, becoming SW. Seas 3 to 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft.
.SUN...SW winds 15 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
$$
ANZ930-190830-
Hatteras Canyon to Cape Fear between 100 NM and 250 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas
3 to 4 ft. Scattered showers and tstms.
.WED...SW winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered showers
and tstms.
.THU NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft.
$$
ANZ835-190830-
Cape Fear to 31N to 1000 FM-
424 PM EDT Tue Aug 18 2026
.TONIGHT...SW winds 10 to 15 kt, becoming W to SW 10 to 20 kt.
Seas 3 to 4 ft. Scattered showers and tstms.
.WED...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered showers
and tstms.
.THU NIGHT...S winds 10 to 15 kt, becoming SW. Seas 3 to 4 ft.
.FRI...SW winds 5 to 15 kt, becoming S. Seas 3 to 4 ft.
.FRI NIGHT...S winds 10 to 15 kt, becoming SW. Seas 3 to 4 ft.
.SAT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft.
$$
ANZ935-190830-
Cape Fear to 31N east of 1000 FM to 250 NM offshore-
424 PM EDT Tue Aug 18 2026
.TONIGHT...SW winds 5 to 15 kt, becoming 5 to 10 kt. Seas 3 to
4 ft. Scattered showers and tstms.
.WED...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...S winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to
4 ft. Scattered showers and tstms.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. Scattered showers
and tstms.
.THU NIGHT...S winds 5 to 15 kt, becoming SW 10 to 15 kt. Seas
3 to 4 ft.
.FRI...SW winds 5 to 15 kt, becoming 5 to 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...SW winds 10 to 20 kt. Seas 4 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft.
$$
.Forecaster Kells. Ocean Prediction Center.
Last Update: Tue, 18-Aug-2026 20:27:03 UTC
Updates: Four times per day
FZNT01 KWBC 181613
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE AUG 18 2026
CCODE/1:31:04:01:00/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.
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
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1200 UTC AUG 18.
24 HOUR FORECAST VALID 1200 UTC AUG 19.
48 HOUR FORECAST VALID 1200 UTC AUG 20.
.WARNINGS.
...GALE WARNING...
.LOW 41N67W 1007 MB MOVING NE 10 KT. WITHIN 120 NM E AND 180 NM
SE QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE WITHIN
360 NM S AND 300 NM E QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 45N63W 1008 MB. WITHIN 300 NM E SEMICIRCLE
AND WITHIN 240 NM E OF A FRONT FROM LOW TO 37N65W WINDS 20 TO 30
KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS MERGED WITH NEW
LOW 56N60W IN SYNOPSIS AND FORECAST.
...GALE WARNING...
.LOW 68N60W 1005 MB MOVING N 15 KT. WITHIN 60 NM OF W GREENLAND
COAST N OF 63N WINDS 25 TO 35 KT. SEAS TO 3 M. ELSEWHERE WITHIN
150 NM W OF GREENLAND N OF 61N WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW N OF AREA. CONDITIONS DIMINISHED.
.SYNOPSIS AND FORECAST.
.LOW INLAND NEAR 55N61W 1004 MB MOVING NE 20 KT. FROM 49N TO 54N
BETWEEN 53W AND 60W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 59N50W 1013 MB. WITHIN 300 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 64N39W 1015 MB. CONDITIONS DIMINISHED.
.LOW 37N49W 1014 MB MOVING NE 10 KT. WITHIN 240 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 39N48W 1016 MB. WITHIN 300 NM E QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.
.LOW 41N45W 1016 MB MOVING NE 10 KT. WITHIN 240 NM NW SEMICIRCLE
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 45N45W 1017 MB. WITHIN 300 NM NE QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 25 KT.
.48 HOUR FORECAST LOW 46N42W 1018 MB. CONDITIONS DINMISHED.
.48 HOUR FORECAST NEW LOW 56N60W 1002 MB. FROM 49N TO 57N
BETWEEN 49W AND 57W WINDS 20 TO 30 KT. SEAS to 2.5 m.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 45N
BETWEEN 66W AND 70W...FROM 57N TO 61N BETWEEN 49W AND 55W...AND
W OF A LINE FROM 55N60W TO 62N55W TO 67N57W.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 45N BETWEEN 63W AND
69W...WITHIN THE GULF OF SAINT LAWRENCE N OF 47N W OF 63W...AND
W OF A LINE FROM 52N56W TO 61N41W TO 67N58W.
.48 HOUR FORECAST DENSE FOG FROM 54N TO 65N BETWEEN 45W AND 65W.
.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.
NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 1200 UTC TUE AUG 18.
24 HOUR FORECAST VALID 1200 UTC WED AUG 19.
48 HOUR FORECAST VALID 1200 UTC THU AUG 20.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.CARIBBEAN 12 HOUR FORECAST WITHIN 13N72W TO 13N73W TO 12N75W TO
11N74W TO 11N73W TO 12N72W TO 13N72W NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 13N75W TO 12N77W TO 12N78W TO 11N78W TO
11N76W TO 11N75W TO 13N75W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3.0 M.
.48 HOUR FORECAST WITHIN 13N69W TO 15N73W TO 14N77W TO 11N77W TO
12N73W TO 11N70W TO 13N69W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.
Last Update: Tue, 18-Aug-2026 16:16:07 UTC
Updates: Four times per day