535
FZUS51 KPHI 180804
CWFPHI

Coastal Waters Forecast for New Jersey and Delaware
National Weather Service Mount Holly NJ
401 AM EDT Mon Aug 18 2025

Sandy Hook NJ to Fenwick Island DE to 20 NM offshore and Delaware
Bay

ANZ400-182100-
401 AM EDT Mon Aug 18 2025

.SYNOPSIS FOR THE COASTAL WATERS FROM SANDY HOOK NJ TO FENWICK
ISLAND DE AND FOR DELAWARE BAY...
A cold front will pass through the region overnight, becoming
stationary over southern Virginia on Monday. High pressure
builds in from the north through the middle to end of next week
as Hurricane Erin passes by well offshore.

$$

ANZ450-182100-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TODAY...NE winds 20 to 25 kt with gusts up to 30 kt, diminishing
to 15 to 20 kt with gusts up to 25 kt this afternoon. Seas 4 to
6 ft, building to 6 to 7 ft this afternoon. Wave Detail: NE 6 ft
at 6 seconds and S 2 ft at 5 seconds, becoming E 6 ft at
7 seconds and SE 1 foot at 15 seconds. A slight chance of showers
early this morning.
.TONIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: E
6 ft at 8 seconds and SE 2 ft at 14 seconds.
.TUE...E winds around 15 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft
at 7 seconds and SE 3 ft at 14 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: SE
5 ft at 16 seconds and E 4 ft at 7 seconds.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: SE 7 ft
at 16 seconds.
.WED NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
6 to 8 ft, building to 7 to 10 ft after midnight. Wave Detail: SE
8 ft at 16 seconds, becoming SE 10 ft at 17 seconds.
.THU...NE winds 15 to 20 kt. Seas 8 to 11 ft.
.THU NIGHT...NE winds 15 to 20 kt. Seas 8 to 11 ft.
.FRI...N winds 15 to 20 kt, becoming E in the afternoon. Seas
5 to 8 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.

$$

ANZ451-182100-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out
20 nm-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TODAY...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft, building to 6 to 8 ft this afternoon. Wave Detail: NE 6 ft
at 6 seconds and S 2 ft at 5 seconds, becoming E 8 ft at
7 seconds and SE 2 ft at 15 seconds. A chance of showers early
this morning. A slight chance of showers late this morning and
afternoon.
.TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
8 ft. Wave Detail: E 7 ft at 8 seconds and SE 2 ft at 14 seconds.
.TUE...E winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and
SE 4 ft at 17 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: SE
6 ft at 16 seconds and E 5 ft at 7 seconds.
.WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to
9 ft. Wave Detail: SE 8 ft at 16 seconds.
.WED NIGHT...E winds 15 to 20 kt, becoming NE 20 to 25 kt after
midnight. Seas 9 to 12 ft. Wave Detail: SE 11 ft at 17 seconds.
.THU...NE winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. Seas 10 to 12 ft.
.THU NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 9 to 12 ft.
.FRI...NE winds 20 to 25 kt. Seas 6 to 9 ft.
.FRI NIGHT...S winds 15 to 20 kt. Seas 5 to 7 ft.

$$

ANZ452-182100-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out
20 nm-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TODAY...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft this afternoon. Wave Detail: E 4 ft
at 7 seconds and S 2 ft at 4 seconds, becoming E 7 ft at
7 seconds and SE 2 ft at 15 seconds. A slight chance of showers
until late afternoon, then a chance of showers late.
.TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
8 ft. Wave Detail: E 8 ft at 7 seconds and SE 3 ft at 13 seconds.
A chance of showers in the evening.
.TUE...E winds 15 to 20 kt. Seas 6 to 7 ft. Wave Detail: E 6 ft
at 8 seconds and SE 4 ft at 17 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. Wave Detail: SE
7 ft at 16 seconds and E 5 ft at 7 seconds.
.WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 8 to
10 ft. Wave Detail: SE 9 ft at 16 seconds.
.WED NIGHT...E winds 15 to 20 kt, becoming NE 20 to 25 kt after
midnight. Seas 9 to 12 ft, building to 11 to 12 ft after
midnight. Wave Detail: SE 10 ft at 16 seconds, becoming SE 12 ft
at 17 seconds and E 5 ft at 8 seconds.
.THU...NE winds 25 to 30 kt. Seas around 12 ft.
.THU NIGHT...NE winds 25 to 30 kt. Seas 11 to 12 ft, subsiding to
9 to 11 ft after midnight.
.FRI...NE winds 20 to 25 kt. Seas 7 to 10 ft.
.FRI NIGHT...SE winds 15 to 20 kt. Seas 6 to 7 ft, subsiding to
4 to 6 ft after midnight.

$$

ANZ453-182100-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TODAY...NE winds 15 to 20 kt, increasing to 20 to 25 kt late
this morning and afternoon. Seas 2 to 4 ft, building to 5 to 7 ft
this afternoon. Wave Detail: E 3 ft at 7 seconds and SE 2 ft at
15 seconds, becoming E 6 ft at 6 seconds and SE 2 ft at
15 seconds. A slight chance of showers late this morning and
early afternoon. A chance of showers late.
.TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to
8 ft. Wave Detail: E 7 ft at 7 seconds and SE 3 ft at 13 seconds.
A chance of showers in the evening.
.TUE...E winds 15 to 20 kt. Seas 6 to 7 ft. Wave Detail: E 6 ft
at 8 seconds and SE 4 ft at 16 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: SE
7 ft at 15 seconds and E 5 ft at 7 seconds.
.WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to
9 ft. Wave Detail: SE 8 ft at 16 seconds.
.WED NIGHT...E winds 15 to 20 kt, becoming NE 20 to 25 kt after
midnight. Seas 9 to 12 ft. Wave Detail: SE 10 ft at 17 seconds
and E 5 ft at 8 seconds.
.THU...NE winds 25 to 30 kt. Seas 9 to 12 ft, building to 11 to
12 ft in the afternoon.
.THU NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 9 to 12 ft.
.FRI...N winds 20 to 25 kt, becoming E 15 to 20 kt in the
afternoon. Seas 6 to 9 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.

$$

ANZ454-182100-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TODAY...NE winds 15 to 20 kt, increasing to 20 to 25 kt with
gusts up to 30 kt late this morning and afternoon. Seas 2 to
4 ft, building to 4 to 6 ft this afternoon. Wave Detail: E 3 ft
at 7 seconds and SE 2 ft at 15 seconds, becoming E 6 ft at
5 seconds and SE 2 ft at 15 seconds. A slight chance of showers
early this morning. A slight chance of showers early this
afternoon, then a chance of showers late.
.TONIGHT...E winds around 20 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: E 6 ft at 7 seconds and SE 3 ft at 13 seconds.
A chance of showers.
.TUE...E winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
7 ft. Wave Detail: E 6 ft at 8 seconds and SE 4 ft at 14 seconds.
.TUE NIGHT...E winds around 15 kt with gusts up to 20 kt,
diminishing to around 10 kt after midnight. Seas 6 to 8 ft. Wave
Detail: SE 7 ft at 15 seconds and E 5 ft at 7 seconds.
.WED...E winds 10 to 15 kt. Seas 6 to 9 ft. Wave Detail: SE 8 ft
at 16 seconds.
.WED NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 9 to 12 ft. Wave Detail: SE 9 ft at
17 seconds and SE 6 ft at 8 seconds.
.THU...NE winds 25 to 30 kt. Seas 9 to 12 ft.
.THU NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 9 to 12 ft.
.FRI...N winds 20 to 25 kt, becoming E 15 to 20 kt in the
afternoon. Seas 6 to 9 ft.
.FRI NIGHT...SE winds 15 to 20 kt, becoming S 10 to 15 kt after
midnight. Seas 5 to 7 ft.

$$

ANZ455-182100-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TODAY...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
15 to 20 kt with gusts up to 30 kt late this morning and
afternoon. Seas 2 to 3 ft, building to 4 to 6 ft this afternoon.
Wave Detail: E 3 ft at 6 seconds and SE 2 ft at 15 seconds,
becoming NE 5 ft at 5 seconds and SE 2 ft at 15 seconds. A chance
of showers with a slight chance of tstms this afternoon.
.TONIGHT...E winds around 20 kt with gusts up to 30 kt. Seas 6 to
7 ft. Wave Detail: NE 6 ft at 6 seconds and SE 3 ft at
14 seconds. A chance of showers.
.TUE...E winds 15 to 20 kt. Seas 6 to 7 ft. Wave Detail: E 6 ft
at 8 seconds and SE 4 ft at 16 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: SE
6 ft at 15 seconds and E 5 ft at 8 seconds.
.WED...E winds 10 to 15 kt. Seas 6 to 9 ft. Wave Detail: SE 7 ft
at 16 seconds.
.WED NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 9 to 12 ft. Wave Detail: SE 9 ft at
17 seconds and E 6 ft at 8 seconds.
.THU...NE winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. Seas 9 to 12 ft.
.THU NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 9 to 12 ft.
.FRI...N winds 20 to 25 kt, becoming E 15 to 20 kt in the
afternoon. Seas 6 to 9 ft.
.FRI NIGHT...SE winds 15 to 20 kt, becoming S 10 to 15 kt after
midnight. Seas 5 to 7 ft.

Winds and seas higher in and near tstms.

$$

ANZ431-182100-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...NE winds 10 to 15 kt, increasing to 15 to 20 kt late
this morning and afternoon. Gusts up to 30 kt. Seas 2 to 3 ft.
Wave Detail: NE 3 ft at 3 seconds and S 1 foot at 4 seconds. A
slight chance of showers early this morning. A slight chance of
showers early this afternoon, then a chance of showers late.
.TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Wave Detail: NE 3 ft at 4 seconds and SE 1 foot at
14 seconds. A chance of showers in the evening.
.TUE...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: E 3 ft at 3 seconds and S 2 ft at 13 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: NE
3 ft at 3 seconds and SE 2 ft at 17 seconds.
.WED...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: NE 2 ft
at 3 seconds and S 2 ft at 6 seconds.
.WED NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: E 3 ft at 3 seconds and S 2 ft at
6 seconds.
.THU...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 4 to 6 ft.
.THU NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft.
.FRI...NE winds 15 to 20 kt, becoming E 10 to 15 kt in the
afternoon. Seas 3 to 5 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft.

$$

ANZ430-182100-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
401 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...NE winds 10 to 15 kt, increasing to 15 to 20 kt late
this morning and afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 3 seconds and SE 1 foot at 4 seconds. A slight chance of
showers early this morning. A slight chance of showers early this
afternoon, then a chance of showers late.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: E 2 ft at 3 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 2 ft at 3 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 3 seconds and SE 1 foot at 13 seconds.
.WED...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 1 foot
at 3 seconds and SE 1 foot at 16 seconds.
.WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and SE 1 foot at
16 seconds.
.THU...NE winds 15 to 20 kt. Seas 2 to 3 ft.
.THU NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft.
.FRI...NE winds 10 to 15 kt, becoming E in the afternoon. Seas
2 to 3 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas around 2 ft.

$$