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Philadelphia, PA Coastal Forecast

FZUS51 KPHI 172305
CWFPHI

Coastal Waters Forecast for New Jersey and Delaware
National Weather Service Mount Holly NJ
702 PM EDT Thu Apr 17 2025

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

ANZ400-181200-
702 PM EDT Thu Apr 17 2025

.SYNOPSIS FOR THE COASTAL WATERS FROM SANDY HOOK NJ TO FENWICK
ISLAND DE AND FOR DELAWARE BAY...
High pressure will shift offshore tonight into Friday as a warm
front lifts north of the area. A southerly or return flow will
then set up across the east coast, before a cold front tracks
through the area Saturday night and Sunday. This cold front will
stall to our south on Sunday night and quickly move back
northward, as a warm front, on Monday. A cold front will follow
on Monday night. High pressure will then return on Tuesday and
Wednesday, before weakening on Thursday.

$$

ANZ450-181200-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 3 seconds and S 1 foot at 7 seconds.
.FRI...SW winds 5 to 10 kt, becoming S 20 to 25 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and
SE 1 foot at 9 seconds.
.FRI NIGHT...S winds around 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 7 seconds.
.SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: S 5 ft at 7 seconds.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt,
becoming W 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave
Detail: S 5 ft at 7 seconds.
.SUN...NW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds.
.SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight.
Seas 2 to 3 ft.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE...SW winds around 10 kt. Seas around 3 ft. A chance of
showers.
.TUE NIGHT...W winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft.

$$

ANZ451-181200-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out
20 nm-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and W 1 foot at 3 seconds.
.FRI...SW winds 10 to 15 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at
5 seconds and SE 1 foot at 9 seconds.
.FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 7 seconds.
.SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: S 6 ft at 7 seconds.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 10 to 15 kt after
midnight. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds.
.SUN...NW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds.
.SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight.
Seas 2 to 3 ft.
.MON...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers after midnight.
.TUE...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft.

$$

ANZ452-181200-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out
20 nm-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and N 1 foot at 4 seconds.
.FRI...SW winds 10 to 15 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at
4 seconds and SE 1 foot at 9 seconds.
.FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: S 6 ft at 7 seconds.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 10 to 15 kt after
midnight. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds.
.SUN...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds.
.SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...E winds around 10 kt. Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers after midnight.
.TUE...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft.

$$

ANZ453-181200-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 8 seconds.
.FRI...SW winds 10 to 15 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at
5 seconds and SW 1 foot at 2 seconds.
.FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 7 seconds.
.SUN NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...E winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers after midnight.
.TUE...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.TUE NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft.

$$

ANZ454-181200-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft this evening,
then 1 foot or less. Wave Detail: N 1 foot at 3 seconds and W
1 foot at 4 seconds, becoming SW 1 foot at 3 seconds and S 1 foot
at 6 seconds.
.FRI...S winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 4 seconds and SE 1 foot at 9 seconds.
.FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT...SW winds around 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 6 seconds.
.SAT NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds
and W 1 foot at 3 seconds.
.SUN...NW winds around 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 7 seconds and W 1 foot at 3 seconds.
.SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.MON...E winds around 10 kt. Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers after midnight.
.TUE...SW winds around 10 kt. Seas 2 to 4 ft. A chance of
showers.
.TUE NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft.

$$

ANZ455-181200-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft this evening,
then 1 foot or less. Wave Detail: W 1 foot at 4 seconds and NE
1 foot at 4 seconds, becoming S 1 foot at 5 seconds and SE 1 foot
at 9 seconds.
.FRI...S winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 4 seconds and SE 1 foot at 9 seconds.
.FRI NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT...SW winds around 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 6 seconds.
.SAT NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds.
.SUN...NW winds around 10 kt, becoming N in the afternoon. Seas
2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and NW 1 foot at
2 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft.
.MON...E winds around 10 kt. Seas 2 to 3 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers after midnight.
.TUE...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
.TUE NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas around 2 ft.

$$

ANZ431-181200-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 3 seconds.
.FRI...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon.
Wave Detail: S 1 foot at 2 seconds, becoming S 3 ft at 4 seconds.
.FRI NIGHT...S winds around 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 5 seconds.
.SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 4 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 25 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and
S 2 ft at 6 seconds.
.SUN...NW winds around 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 3 seconds and S 1 foot at 7 seconds.
.SUN NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less.
.MON...E winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...S winds around 10 kt. Seas around 2 ft. A chance of
showers.
.TUE...W winds around 10 kt. Seas around 2 ft. A chance of
showers.
.TUE NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.

$$

ANZ430-181200-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
702 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

.TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 2 seconds.
.FRI...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: S 1 foot at 2 seconds, becoming SE 2 ft
at 4 seconds.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds.
.SAT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas around
2 ft. Wave Detail: S 2 ft at 4 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 25 kt in the
evening. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW
1 foot at 2 seconds and SE 1 foot at 5 seconds.
.SUN NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less.
.MON...E winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...S winds around 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. A chance of showers.
.TUE...W winds around 10 kt. Seas 1 foot or less. A chance of
showers.
.TUE NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.

$$



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