Port Update
Philadelphia / Delaware River & Bay
August 18, 2025
Notices
Moran Shipping Agencies at Port Philadelphia & Wilmington, DE.
Port Security - MARSEC Level 1
Local Time – GMT -5
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
234 AM EDT Mon Aug 18 2025
ANZ454-455-182000-
/O.CON.KPHI.SC.Y.0080.250818T1100Z-250822T1000Z/
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
234 AM EDT Mon Aug 18 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 6 AM EDT FRIDAY...
* WHAT...Northeast winds 20 to 30 kt and seas 6 to 12 ft
expected.
* WHERE...Coastal waters from Cape May NJ to Cape Henlopen DE
out 20 nm and Coastal waters from Cape Henlopen to Fenwick
Island DE out 20 nm.
* WHEN...From 7 AM this morning to 6 AM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
Weather / Marine Zone Forecast
Marine Weather
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.
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.
Airport Code – Port Philadelphia, PA (PHL)
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