Atlantic Text Briefing Package

[Printable Version]

AGNT40 KWNM 240149
MIMATN

Marine Weather Discussion for N Atlantic Ocean
NWS Ocean Prediction Center Washington DC
949 PM EDT Sat Jun 23 2018

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

Over the near term the main concern will continue to be the
locally strong gusty winds potentially exceeding gale force and
very rough seas in and near thunderstorms mainly from southern
New England waters southward to the North Carolina coast, with
most of the thunderstorms moving off to the E and NE through
tonight. The latest GOES IR imagery, radar imagery and lightning
density product data shows the heavier thunderstorms currently
extending from Pamlico Sound, North Carolina and E of Virginia
Beach NE to south of Long Island. We will highlight winds to gale
force in the updated forecast over those zones most likely
impacted by the heavier thunderstorms tonight. Otherwise, the 18Z
guidance suggests that little change is needed to the ongoing
forecast for the evening update. A weak low pressure area is 
moving E from the SE Gulf of Maine waters, a weak trailing cold 
front extends SW from the low toward Delaware Bay, and a warm 
front extends E and SE from the low, all according to the 
preliminary 00Z OPC-NCEP surface analysis. Another low and 
associated somewhat stronger cold front will impact the waters
later Sun and Sun night into Mon, with the potential for more
thunderstorms near the low and cold front tomorrow into Monday.

SEAS...Little change appears needed to the ongoing sea height
forecast and grids based on the latest observations which show
seas heights ranging from near 8 feet off the mid-Atlantic 
coast, to 2 feet or so over the northern Gulf of Maine waters 
and off the Georgia coast. We will make a few minor adjustments
to the previous forecast and grids in deference to nearby 
coastal WFO and TAFB grids over the next few days.

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

18Z NCEP surface analysis indicates warm front across the far
southern NT1 waters and a weak retreating ridge N of the front
across the northern NT1 waters. Warm front then dips SW into NE
MD and then NW toward a low center western Lake Erie. This leaves
much of the NT2 waters in the warm sector. Main concern over the
short term continues to be the threat for locally strong winds 
near or exceeding gale force in and near the heavier 
thunderstorms mainly near the warm front lifting N from southern 
NT1 waters today and the additional thunderstorms that may 
develop near a warm frontal low moving NE from Long Island 
tonight, followed by a second low (Lake Erie low) following later
Sun and Sun night, which will drag an associated cold front SE 
into the region Sun night and beyond. GOES imagery and lightning 
strike and density data indicate scattered thunderstorms N of the
warm front in southern NT1 waters and also over the central and 
NE NT2 waters along the Gulf Stream but the activity E of 70W has
weakened during the day. Morning ASCAT passes returned strongest
winds 20 to 25 kt along the Gulf Stream, highest in ANZ910 from 
available coverage. Some 20 kt easterly winds appear just N of
the warm front. For the afternoon package through Sun morning we
will populate grids with the 12Z high resolution Wnmm winds which
initialize close to observed conditions, followed by a 50/50 
blend of the 12Z GFS 10 meter winds with the 12Z high resolution 
Warw through Sun night. The 12Z models are otherwise in very 
good agreement through the weekend and into Mon and will
transition to 12Z GFS 10 meter winds Mon. No warning headlines
are expected and confidence is above average into Mon.

Over the medium range, Mon night and beyond, the 12Z models
dvelop some differences in position and strength of the low
passing east of the NT1 waters Mon and intensifying S of
Newfoundaland Mon night into Tue, supported by a strong shortwave
trough dropping SE from New England and then closing off S of
Newhoundland. For Mon night through Tue used the 12Z ECMWF which
is a compromise between the stronger 12Z global GEM/UKMET and
weaker GFS resulting in stronger northerly flow in the NE waters
than indicated in GFS. For Wed night through Thu night populated
winds with a 50/50 blend of the 12Z GFS with the 12Z ECMWF taking
into account differences in flow ahead of an approaching second
cold front. Otherwise from late Tue throgh Wed used the 12Z GFS
modified using the 10m/30m stability tool.

Seas...Both the 12Z Wavewatch and 12Z ECMWF WAM are running up 
to a foot on the low side mainly near the warm front and also
near the Gulf Stream off the central and northern mid-Atlantic
coast. For the afternoon package we will use the 12Z Wavewatch for
much of the period except for a boost by a foot where differences
exist near term into tonight, and in later periods where ECMWF is
uses alone or in a blend, use a 50/50 blend of the 12Z Wavewatch
and 12Z ECMWF WAM.

Extratropical Storm Surge Guidance...N/A.


.WARNINGS...Preliminary.

.NT1 New England Waters...
     None.

.NT2 Mid-Atlantic Waters...
     None.

$$

.Forecaster Mills/Bancroft. Ocean Prediction Center.
Last Update:01:50Z, 24 June 2018
Updates: Four times per day

FZNT21 KWBC 240232
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
1032 PM EDT Sat Jun 23 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.

ANZ898-250245-
1032 PM EDT Sat Jun 23 2018

.SYNOPSIS FOR NEW ENGLAND WATERS...Weak low pressure will move E
from the eastern Gulf of Maine tonight with a weak cold front 
extending from the low SW to Delaware Bay dissipating early Sun.
A second low will move E over New England Sun, and cross the 
Gulf of Maine Sun night with an associated slightly stronger 
cold front moving SE over the region. High pressure will slowly 
build E and SE toward the waters Mon and Mon night, cross the 
southern portion Tue, and move slowly off to the SE of the area 
Tue night and Wed. A warm front will cross the waters Wed night 
into Thu. Another cold front will approach from the W Thu and 
Thu night. 

$$

ANZ800-250245-
Gulf of Maine to the Hague Line-
1032 PM EDT Sat Jun 23 2018

.TONIGHT...Variable winds less than 10 kt, increasing to 5 to
15 kt. Seas 2 to 4 ft. Scattered showers and isolated TSTMs. 
.SUN...Variable winds 5 to 15 kt, diminishing to less than
10 kt. Seas 3 to 5 ft. Scattered showers. 
.SUN NIGHT...S to SE winds 5 to 10 kt, becoming N 5 to 15 kt.
Seas 3 to 5 ft. Rain and isolated TSTMs. Areas of fog. VSBY 1 NM
or less.
.MON...N winds increasing to 15 to 25 kt. Seas building to 5 to 
8 ft. Scattered showers with areas of fog. VSBY 1 nm or less. 
.MON NIGHT...N winds 10 to 20 kt, becoming N to NW 5 to 15 kt. Seas
5 to 8 ft, subsiding to 4 to 6 ft.
.TUE...N winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 5 
ft.
.TUE NIGHT...SW winds 15 to 25 kt, becoming W. Seas 3 to 6 ft.
.WED...W to SW winds 15 to 25 kt. Seas 3 to 6 ft.
.WED NIGHT...SW winds 20 to 25 kt, becoming S. Seas 4 to 7 ft.
.THU...S winds 20 to 30 kt. Seas building to 6 to 9 ft.
.THU NIGHT...S to SW winds 20 to 30 kt. Seas 6 to 10 ft.

$$

ANZ805-250245-
Georges Bank between Cape Cod and 68W north of 1000 fm-
1032 PM EDT Sat Jun 23 2018

.TONIGHT...SW winds 5 to 15 kt, becoming S to SW 15 to 25 kt.
Winds to 35 kt or higher in and near TSTMs. Seas 3 to 5 ft, 
building to 4 to 7 ft. Scattered showers and TSTMs, then rain 
and a chance of TSTMs late.
.SUN...S to SW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft. Rain early, then scattered showers and TSTMs.
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 7 ft.
Scattered showers and TSTMs with fog. VSBY 1 NM or less. 
.MON...Winds becoming N to NW 15 to 25 kt. Seas 4 to 7 ft. 
Scattered showers and TSTMs with patchy fog. VSBY 1 NM or less. 
.MON NIGHT...N winds 10 to 20 kt, becoming N to NW 5 to 15 kt. Seas
4 to 7 ft.
.TUE...N to NW winds 5 to 15 kt, becoming SW. Seas 3 to 6 ft.
.TUE NIGHT...SW winds increasing to 15 to 25 kt. Seas 3 to 6 ft.
.WED...S to SW winds 10 to 20 kt. Seas 3 to 6 ft.
.WED NIGHT...S winds 15 to 25 kt. Seas 3 to 6 ft.
.THU...S winds 15 to 25 kt. Seas building to 4 to 8 ft.
.THU NIGHT...S to SW winds 15 to 25 kt. Seas 5 to 8 ft.

$$

ANZ900-250245-
Georges Bank between 68W and the Hague Line-
1032 PM EDT Sat Jun 23 2018

.TONIGHT...SW winds 10 to 20 kt, becoming S to SW 20 to 30 kt.
Winds to 35 kt or higher in and near TSTMs. Seas 3 to 5 ft, 
becoming 4 to 7 ft. Showers and TSTMs.
.SUN...S to SW winds 15 to 25 kt. Seas 4 to 8 ft. Scattered
showers and isolated TSTMs. Areas of fog. VSBY 1 nm or less.
.SUN NIGHT...SW winds 10 to 20 kt. Seas 4 to 7 ft. TSTMs,
showers and fog with VSBY 1 nm or less. 
.MON...Winds becoming N to NW 15 to 25 kt. Seas 5 to 8 ft. 
Scattered showers and TSTMs with patchy fog. VSBY 1 nm or less. 
.MON NIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft.
.TUE...NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
subsiding to 4 to 6 ft.
.TUE NIGHT...Winds backing to SW 10 to 20 kt. Seas 4 to 6 ft.
.WED...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft.
.THU...S winds 15 to 25 kt. Seas building to 4 to 7 ft.
.THU NIGHT...S winds 15 to 25 kt. Seas 5 to 8 ft.

$$

ANZ810-250245-
South of New England between the Great South Channel and Montauk
Point to 1000 fm-
1032 PM EDT Sat Jun 23 2018

.TONIGHT...S to SW winds 15 to 25 kt. Winds to 35 kt or higher in
and near TSTMs. Seas 3 to 5 ft, building to 4 to 7 ft. Showers 
and scattered TSTMs. 
.SUN...SW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to
8 ft. Chance of showers and TSTMs. 
.SUN NIGHT...SW winds 10 to 20 kt, becoming W. Seas 4 to 7 ft.
TSTMs and scattered showers with fog. VSBY 1 NM or less. 
.MON...Winds becoming N 10 to 15 kt, then N to NE 10 to 20 kt. 
Seas 4 to 7 ft. Chance of showers and TSTMs. Patchy fog early.
.MON NIGHT...NE winds 10 to 20 kt, becoming N to NE 5 to 15 kt. Seas
3 to 6 ft.
.TUE...W to NW winds less than 10 kt, becoming W to SW. Seas 3 to 5
ft.
.TUE NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.WED...SW winds 10 to 15 kt, becoming S 15 to 20 kt. Seas 3 to 4 ft.
.WED NIGHT...S winds 15 to 20 kt. Seas 3 to 6 ft.
.THU...S winds 15 to 25 kt. Seas becoming 5 to 7 ft.
.THU NIGHT...S winds 20 to 25 kt, becoming SW 10 to 20 kt. Seas 5 to
7 ft.

$$

ANZ815-250245-
South of Long Island between Montauk Point and Sandy Hook to
1000 fm-
1032 PM EDT Sat Jun 23 2018

.TONIGHT...S winds 10 to 20 kt, becoming SW. Winds to 35 kt or
higher in and near TSTMs. Seas 3 to 6 ft. TSTMs and scattered 
showers.
.SUN...SW winds 5 to 15 kt. Seas 4 to 6 ft. Chance of showers and
TSTMs.
.SUN NIGHT...SW winds 10 to 15 kt, becoming W. Seas 3 to 5 ft.
TSTMs and scattered showers with fog. VSBY 1 nm or less.
.MON...Winds becoming NW 10 to 15 kt, then N to NE 10 to 20 kt. 
Seas 3 to 5 ft. Slight chance of showers and TSTMs. 
.MON NIGHT...Winds veering to E 5 to 15 kt. Seas 3 to 5 ft.
.TUE...Variable winds less than 10 kt, becoming S to SW. Seas 2 to 4
ft.
.TUE NIGHT...S to SW winds increasing to 10 to 15 kt. Seas 3 to 4
ft.
.WED...S winds 10 to 15 kt, increasing to 15 to 25 kt. Seas 3 to 5
ft.
.WED NIGHT...S winds 15 to 25 kt. Seas building to 4 to 7 ft.
.THU...S winds 20 to 25 kt. Seas 5 to 7 ft.
.THU NIGHT...S to SW winds diminishing to 10 to 20 kt. Seas 4 to 7
ft.

$$

.Forecaster Mills. Ocean Prediction Center.
Last Update:02:33Z, 24 June 2018
Updates: Four times per day

FZNT22 KWBC 240235
OFFNT2

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
1035 PM EDT Sat Jun 23 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.

ANZ899-250230-
1035 PM EDT Sat Jun 23 2018

.SYNOPSIS FOR MID ATLC WATERS...Low pressure will pass N and NE
of the area tonight into Sun, followed by a second low Sun 
night. A cold front associated with the second low will move SE 
over the waters later Sun night through Mon night, then stall and
weaken over the southern waters Tue into Tue night as a high 
pressure ridge builds SE over the northern and central waters. 
The ridge will then move E away from the region Wed and Wed 
night. The next cold front will approach the northern waters Wed 
night into Thu night while weakening. 

$$

ANZ820-250230-
Hudson Canyon to Baltimore Canyon to 1000 fm-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...SW winds 20 to 30 kt, diminishing to 10 to 20 kt.
Winds to 35 kt or higher in and near TSTMs. Seas 3 to 6 ft. 
Scattered showers and TSTMs.
.SUN...S to SW winds 5 to 15 kt. Seas 3 to 6 ft. Slight chance of
showers and TSTMs. Areas of fog. VSBY 1 nm or less. 
.SUN NIGHT...SW winds 10 to 15 kt, becoming W. Seas 3 to 5 ft.
TSTMs and scattered showers. Areas of fog. VSBY 1 nm or less.
.MON...NW winds 10 to 15 kt, diminishing to less than 10 kt.
Seas 3 to 6 ft. Slight chance of showers and TSTMs.
.MON NIGHT...N to NW winds 5 to 15 kt, becoming E to NE. Seas
3 to 4 ft. 
.TUE...E to SE winds 5 to 15 kt. Seas 2 to 4 ft. 
.TUE NIGHT...S to SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to
5 ft. 
.WED NIGHT...S winds 15 to 25 kt. Seas becoming 4 to 7 ft.
.THU...S winds 15 to 25 kt. Seas 4 to 7 ft. 
.THU NIGHT...S to SW winds 10 to 20 kt. Seas 4 to 7 ft. 

$$

ANZ915-250230-
Between 1000 fm and 38.5N west of 69W-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S to SW winds 15 to 25 kt. Winds to 35 kt or higher in
and near TSTMs. Seas 5 to 9 ft. Showers and TSTMs. 
.SUN...SW winds 15 to 25 kt. Seas 5 to 9 ft. Slight chance of
showers and TSTMs. Areas of fog. VSBY 1 nm or less. 
.SUN NIGHT...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. Showers 
and TSTMs with areas of fog. VSBY 1 NM or less. 
.MON...W to NW winds 10 to 20 kt, becoming N to NW. Seas 4 to
8 ft. Scattered showers and TSTMs. Patchy fog. VSBY 1 nm or 
less.
.MON NIGHT...N to NE winds 10 to 20 kt. Seas 3 to 6 ft. 
.TUE...E to NE winds 5 to 15 kt. Seas 3 to 6 ft. 
.TUE NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 5 ft. 
.WED...S winds 5 to 10 kt, increasing to 10 to 20 kt. Seas 3 to
4 ft. 
.WED NIGHT...S winds 15 to 20 kt. Seas becoming 4 to 6 ft.
.THU...S winds 15 to 25 kt. Seas 5 to 7 ft. 
.THU NIGHT...S to SW winds 15 to 20 kt. Seas 5 to 7 ft. 

$$

ANZ920-250230-
Baltimore Canyon to 69W east of 1000 fm and south of 38.5N to
250 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S winds 15 to 25 kt, becoming SW. Winds to 35 kt or
higher in and near TSTMs. Seas 6 to 9 ft. Scattered showers and 
TSTMs.
.SUN...SW winds 15 to 25 kt. Seas 5 to 9 ft. TSTMs and scattered
showers with patchy fog. VSBY 1 nm or less. 
.SUN NIGHT...SW winds 20 to 30 kt. Seas 6 to 10 ft. Scattered 
showers and TSTMs. Areas of fog. VSBY 1 NM or less. 
.MON...W to SW winds 15 to 25 kt, becoming NW 10 to 20 kt. Seas
6 to 10 ft. Scattered showers and TSTMs with patchy fog. VSBY 1 
nm or less.
.MON NIGHT...N winds 10 to 20 kt, becoming NE. Seas subsiding
to 4 to 7 ft.
.TUE...E to NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.TUE NIGHT...E winds 10 to 20 kt, becoming E to SE 5 to 15 kt.
Seas 3 to 6 ft. 
.WED...S to SE winds 10 to 15 kt, becoming 10 to 20 kt. Seas
3 to 5 ft. 
.WED NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft.
.THU...S winds 15 to 25 kt. Seas 4 to 7 ft. 
.THU NIGHT...S winds 10 to 20 kt. Seas 4 to 7 ft. 

$$

ANZ905-250230-
East of 69W to the Hague Line between 1000 fm and 39N-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. Scattered
showers and TSTMs. 
.SUN...SW winds 15 to 25 kt. Seas 6 to 9 ft. Showers and TSTMs
with areas of fog. VSBY 1 nm or less. 
.SUN NIGHT...SW winds 15 to 25 kt. Seas 6 to 10 ft. Showers and
TSTMs. Areas of fog. VSBY 1 NM or less.
.MON...W to SW winds 15 to 25 kt, becoming NW. Seas 6 to 10 ft.
TSTMs and scattered showers with patchy fog. VSBY 1 nm or less. 
.MON NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 8 ft. 
.TUE...N to NW winds 10 to 20 kt. Seas subsiding to 4 to 7 ft. 
.TUE NIGHT...Variable winds 5 to 15 kt, becoming W to SW. Seas
4 to 6 ft. 
.WED...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...S winds 10 to 15 kt, becoming 10 to 20 kt. Seas
3 to 5 ft. 
.THU and THU NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. 

$$

ANZ910-250230-
East of 69W and south of 39N to 250 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. Scattered
showers and TSTMs. 
.SUN...SW winds 15 to 25 kt. Seas 7 to 9 ft. TSTMs and scattered
showers. 
.SUN NIGHT...SW winds 20 to 30 kt. Seas 7 to 10 ft. TSTMs and
scattered showers with patchy fog. VSBY 1 nm or less. 
.MON...W to SW winds 15 to 25 kt, becoming NW. Seas 6 to 11 ft. 
TSTMs and scattered showers. 
.MON NIGHT...N winds 15 to 20 kt. Seas 6 to 8 ft. 
.TUE...N to NE winds 10 to 20 kt. Seas 5 to 8 ft. 
.TUE NIGHT...NE winds 10 to 20 kt, becoming E to NE 5 to 15 kt.
Seas subsiding to 4 to 6 ft. 
.WED...E to SE winds 5 to 10 kt, becoming S to SE 5 to 15 kt.
Seas 4 to 5 ft. 
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...S winds 10 to 20 kt. Seas 4 to 5 ft. 
.THU NIGHT...S winds 10 to 20 kt, becoming 10 to 15 kt. Seas
4 to 5 ft. 

$$

ANZ825-250230-
Baltimore Canyon to Cape Charles Light to 100 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S to SW winds 15 to 25 kt. Winds to 35 kt or higher in
and near TSTMs.  Seas 4 to 7 ft. Scattered showers and TSTMs. 
.SUN...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. Chance of
showers and TSTMs. 
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 7 ft. Chance
of showers and TSTMs. 
.MON...Winds becoming N to NW 5 to 15 kt. Seas 3 to 6 ft. 
.MON NIGHT...N winds 5 to 15 kt, becoming NE. Seas subsiding
to 2 to 4 ft.
.TUE...E winds 5 to 10 kt, becoming E to SE 5 to 15 kt. Seas
3 to 5 ft. 
.TUE NIGHT...SE winds 10 to 20 kt. Seas 4 to 5 ft. 
.WED...S to SE winds 10 to 15 kt, becoming S 15 to 20 kt. Seas
4 to 5 ft. 
.WED NIGHT and THU...S winds 15 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...S winds 15 to 20 kt, becoming S to SW 5 to 15 kt.
Seas 3 to 6 ft. 

$$

ANZ828-250230-
Cape Charles Light to Currituck Beach Light to 100 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...SW winds 15 to 25 kt. Winds to 35 kt or higher in and
near TSTMs. Seas 4 to 7 ft. Showers and TSTMs.
.SUN...S to SW winds 15 to 25 kt. Seas 4 to 7 ft. Chance of
showers and TSTMs. 
.SUN NIGHT...W to SW winds 15 to 25 kt. Seas becoming 5 to 9 ft.
Chance of showers and TSTMs. 
.MON...W to NW winds 10 to 20 kt, becoming N 5 to 15 kt. Seas
4 to 8 ft. Scattered showers and isolated TSTMs. 
.MON NIGHT...N to NE winds 10 to 15 kt, becoming E to NE 5 to
15 kt. Seas subsiding to 3 to 5 ft. 
.TUE...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
5 ft. 
.TUE NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 6 ft. 
.WED...Winds becoming SE 10 to 15 kt, then S to SE 10 to 20 kt. 
Seas 4 to 5 ft. 
.WED NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft.
.THU...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to
6 ft. 
.THU NIGHT...S winds 10 to 20 kt. Seas 3 to 6 ft. 

$$

ANZ925-250230-
Baltimore Canyon to Hatteras Canyon between 100 nm and 250 nm
offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S winds 15 to 25 kt, becoming SW. Winds to 35 kt or
higher in and near TSTMs. Seas 4 to 8 ft. Scattered showers and 
TSTMs.
.SUN...SW winds 15 to 25 kt. Seas 4 to 8 ft. Scattered showers
and TSTMs. 
.SUN NIGHT...SW winds 15 to 25 kt. Seas 5 to 9 ft. Isolated
showers and TSTMs. 
.MON...W to SW winds 15 to 25 kt. Seas 6 to 10 ft. Scattered
showers and TSTMs. 
.MON NIGHT...Winds becoming N 10 to 20 kt, then NE. Seas
subsiding to 4 to 7 ft.
.TUE...E to NE winds 10 to 20 kt. Seas 3 to 6 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED...E to SE winds 10 to 15 kt, becoming S to SE 10 to 20 kt.
Seas 4 to 6 ft. 
.WED NIGHT...S to SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...S winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...S winds 10 to 20 kt. Seas 3 to 6 ft. 

$$

ANZ830-250230-
Currituck Beach Light to Cape Hatteras to 100 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt. Winds to
35 kt or higher in and near TSTMs. Seas 4 to 7 ft. Scattered 
showers and TSTMs.
.SUN...SW winds 15 to 25 kt. Seas 4 to 7 ft. Chance of showers
and TSTMs. 
.SUN NIGHT...SW winds 15 to 25 kt. Seas 5 to 9 ft. Scattered
showers and a chance of TSTMs. 
.MON...W to SW winds 15 to 25 kt. Seas 4 to 8 ft. Scattered
showers and isolated TSTMs. 
.MON NIGHT...Winds becoming N to NE 5 to 15 kt, then E to NE 10 
to 15 kt. Seas subsiding to 3 to 5 ft. 
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 15 to 20 kt. Seas 3 to 6 ft. 
.WED...E to SE winds diminishing to 10 to 15 kt, then becoming 
SE 10 to 20 kt. Seas 4 to 6 ft. 
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to
5 ft. 
.THU NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. 

$$

ANZ833-250230-
Cape Hatteras to Cape Fear to 100 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S winds 15 to 20 kt, becoming SW. Seas 4 to 6 ft.
Chance of showers and TSTMs. 
.SUN...SW winds 15 to 25 kt. Seas 4 to 6 ft. Chance of showers 
and TSTMs. 
.SUN NIGHT...SW winds 20 to 25 kt. Seas 4 to 7 ft. Scattered
showers and TSTMs. 
.MON...W to SW winds 15 to 25 kt. Seas 4 to 7 ft. Scattered
showers and isolated TSTMs. 
.MON NIGHT...W to SW winds 10 to 20 kt, becoming E to NE 5 to
15 kt. Seas subsiding to 3 to 5 ft. 
.TUE...E winds 10 to 20 kt. Seas 3 to 6 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 4 to 7 ft. 
.WED...E to SE winds 15 to 25 kt. Seas 5 to 7 ft. 
.WED NIGHT...Winds becoming S 10 to 15 kt. Seas subsiding to 3 
to 5 ft.
.THU...S winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
5 ft. 
.THU NIGHT...S to SW winds 15 to 20 kt, becoming SW 10 to 15 kt.
Seas 3 to 5 ft. 

$$

ANZ930-250230-
Hatteras Canyon to Cape Fear between 100 nm and 250 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. Isolated
showers and TSTMs. 
.SUN...S to SW winds 10 to 20 kt. Seas 4 to 6 ft. Scattered
showers and isolated TSTMs. 
.SUN NIGHT...SW winds 15 to 25 kt. Seas becoming 4 to 8 ft.
Chance of showers and TSTMs.
.MON...SW winds 10 to 20 kt. Seas 4 to 8 ft. Scattered showers
and isolated TSTMs. 
.MON NIGHT...W winds 10 to 20 kt, becoming NE. Seas becoming 3 
to 6 ft.
.TUE...E to NE winds 15 to 25 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 4 to 7 ft. 
.WED...E to SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED NIGHT...S to SE winds 5 to 15 kt. Seas becoming 4 to 5 ft. 
.THU...S to SE winds 5 to 15 kt, becoming S 10 to 20 kt. Seas
4 to 5 ft. 
.THU NIGHT...S winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 3 to 5 ft. 

$$

ANZ835-250230-
Cape Fear to 31N to 1000 fm-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. Chance of
showers and TSTMs. 
.SUN...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...S winds 15 to 20 kt, becoming SW. Seas becoming 4 
to 7 ft. Chance of showers and TSTMs. 
.MON...SW winds 10 to 20 kt. Seas 4 to 7 ft. Scattered showers
and isolated TSTMs. 
.MON NIGHT...SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt.
Seas subsiding to 2 to 4 ft. 
.TUE...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
5 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 4 to 7 ft. 
.WED...E to SE winds 10 to 20 kt. Seas 4 to 7 ft. 
.WED NIGHT...Winds becoming S to SW 5 to 15 kt. Seas subsiding
to 3 to 5 ft.
.THU...W to SW winds 5 to 15 kt, becoming S to SW. Seas 3 to
5 ft. 
.THU NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. 

$$

ANZ935-250230-
Cape Fear to 31N east of 1000 fm to 250 nm offshore-
1035 PM EDT Sat Jun 23 2018

.TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. Isolated showers
and TSTMs.
.SUN...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Scattered
showers and a chance of TSTMs. 
.SUN NIGHT...S winds 10 to 20 kt, becoming SW. Seas 3 to 6 ft. 
.MON...SW winds 10 to 20 kt. Seas 3 to 6 ft. 
.MON NIGHT...SW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas
3 to 5 ft. 
.TUE...Winds becoming E to NE 5 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds increasing to 15 to 25 kt. Seas becoming 4 
to 7 ft.
.WED...E to SE winds 10 to 20 kt, becoming S 5 to 15 kt. Seas
4 to 7 ft. 
.WED NIGHT...S winds 5 to 10 kt, becoming 5 to 15 kt. Seas 4 to
5 ft. 
.THU and THU NIGHT...S to SW winds 5 to 15 kt. Seas 4 to 5 ft. 

$$

.Forecaster Mills. Ocean Prediction Center.
Last Update:02:36Z, 24 June 2018
Updates: Four times per day

FZNT01 KWBC 240356
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC SUN JUN 24 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 JUN 24. 
24 HOUR FORECAST VALID 0000 UTC JUN 25. 
48 HOUR FORECAST VALID 0000 UTC JUN 26. 

.WARNINGS. 

...GALE WARNING...

.24 HOUR FORECAST LOW 42N71W 1008 MB. OVER FORECAST WATERS 
WITHIN 480 NM NW AND W OF A LINE FROM 38N50W TO 31N69W WINDS 20 
TO 30 KT. SEAS TO 10 FT.
.42 HOUR FORECAST LOW 44N61W 1002 MB. WITHIN 420 NM S QUADRANT 
WINDS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 44N58W 1000 MB. WITHIN 300 NM N AND 660 NM 
S SEMICIRCLES WINDS 25 TO 35 KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST. 

.OVER FORECAST WATERS E OF A LINE FROM 51N39W TO 39N40W WINDS TO 
25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST CONDITIONS MOVED E OF AREA.

.LOW 59N50W 998 MB MOVING NE 15 KT. WITHIN 840 NM S QUADRANT 
WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 62N44W 997 MB. WITHIN 780 NM SE...720 NM 
SW...360 NM NW...AND 300 NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS 
TO 10 FT.
.48 HOUR FORECAST LOW 61N40W 1001 MB. WITHIN 300 NM S SEMICIRCLE 
AND WITHIN 240 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS TO 11 FT.

.LOW 42N67W 1010 MB MOVING NE 25 KT. OVER FORECAST WATERS WITHIN 
540 NM NW AND W OF A LINE FROM 39N55W TO 31N64W WINDS 20 TO 30 
KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 47N51W 1006 MB. WITHIN 480 NM S SEMICIRCLE 
AND WITHIN 240 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 50N39W 1006 MB. WITHIN 420 NM S...360 NM 
W...300 NM N...AND 240 NM E QUADRANTS WINDS 20 TO 30 KT. SEAS TO 
11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST 
WATERS WITHIN 90 NM OF 42N64W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 50N BETWEEN 60W AND 45W. 
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM N OF A LINE FROM 
39N46W TO 43N59W. 

.HIGH 31N51W 1028 MB MOVING W 05 KT.
.24 HOUR FORECAST HIGH 31N56W 1027 MB.
.48 HOUR FORECAST HIGH MOVED S OF AREA.

.HIGH 43N47W 1024 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH 47N35W 1025 MB.
.48 HOUR FORECAST HIGH MOVED E OF AREA.

.FORECASTER SOMMERVILLE. 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 SUN JUN 24.
24 HOUR FORECAST VALID 0000 UTC MON JUN 25.
48 HOUR FORECAST VALID 0000 UTC TUE JUN 26.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC S OF 21N BETWEEN 70W AND 73W E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST S OF 22N BETWEEN 70W AND 74W E TO SE WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST S OF 21N BETWEEN 70W AND 72W E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.ATLC FROM 08N TO 17N BETWEEN 48W AND 60W E WINDS 20 TO 25 KT. 
SEAS TO 9 FT.
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST FROM 08N TO 13N BETWEEN 55W AND 60W WINDS 20 KT
OR LESS. SEAS 8 FT IN NE TO E SWELL.

.CARIBBEAN FROM 11N TO 15N BETWEEN 67W AND 77W NE TO E WINDS 20
TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST FROM 11N TO 18N E OF 80W E WINDS 20 TO 25 KT.
SEAS 8 TO 10 FT.
.36 HOUR FORECAST FROM 11N TO 15N BETWEEN 70W AND 78W E WINDS 25
TO 30 KT. SEAS 10 TO 12 FT. ELSEWHERE FROM 11N TO 18N E OF 82W E
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST FROM 11N TO 18N BETWEEN 65W AND 82W E WINDS 20
TO 25 KT. SEAS 8 TO 10 FT.

.CARIBBEAN S OF 18N W OF 85W E WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST S OF 18N W OF 85W E WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST S OF 18N W OF 85W E WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.

.GULF OF MEXICO 30 HOUR FORECAST TROUGH ALONG W COAST OF 
YUCATAN. FROM 20N TO 22N BETWEEN 88W AND 91W NE TO E WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST FROM 21N TO 23N BETWEEN 91W AND 93W E TO SE 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. 

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
Last Update:03:57Z, 24 June 2018
Updates: Four times per day