Delaware Bay north of East Point NJ to Slaughter Beach DE Marine Forecast
| Tonight...S Winds 5 To 10 Kt, Becoming Sw After Midnight. Seas 1 Foot Or Less. Wave Detail: Se 1 Foot At 3 Seconds. |
| Fri...S Winds 5 To 10 Kt, Increasing To 10 To 15 Kt With Gusts Up To 25 Kt In The Afternoon. Seas 1 Foot Or Less, Then Around 2 Ft In The Afternoon. Wave Detail: Se 1 Foot At 3 Seconds, Becoming S 2 Ft At 3 Seconds. |
| Fri Night...S Winds 15 To 20 Kt, Becoming Sw 10 To 15 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 4 Seconds. Showers Likely. |
| Sat...Nw Winds 5 To 10 Kt. Seas Around 2 Ft In The Morning, Then 1 Foot Or Less. Wave Detail: W 1 Foot At 2 Seconds And Se 1 Foot At 5 Seconds, Becoming Nw 1 Foot At 2 Seconds And Se 1 Foot At 5 Seconds. |
| Sat Night...Se Winds Around 5 Kt. Seas 1 Foot Or Less. Wave Detail: Nw 1 Foot At 2 Seconds. |
| Sun...S Winds 5 To 10 Kt. Seas 1 Foot Or Less. Wave Detail: Se 1 Foot At 3 Seconds. |
| Sun Night...S Winds 10 To 15 Kt, Becoming Sw 15 To 20 Kt After Midnight. Seas Around 2 Ft. A Chance Of Showers After Midnight. |
| Mon...Nw Winds 15 To 20 Kt. Seas 2 To 3 Ft. A Chance Of Showers In The Morning. |
| Mon Night...Nw Winds 15 To 20 Kt. Seas 2 To 3 Ft. |
| Tue...N Winds 15 To 20 Kt, Becoming Nw 5 To 10 Kt In The Afternoon. Seas 1 To 2 Ft In The Morning, Then 1 Foot Or Less. |
| Tue Night...S Winds 5 To 10 Kt, Increasing To 10 To 15 Kt After Midnight. Seas 1 Foot Or Less. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 214pm EDT Thu Mar 19 2026 .WHAT HAS CHANGED... Small Craft Advisory issued. .KEY MESSAGES... 1. Gusty winds develop Friday afternoon with milder air followed by some showers Friday night into early Saturday morning. 2. Temperatures continue to moderate this weekend with some showers Sunday night into Monday morning, then turning colder with gusty winds early next week. KEY MESSAGE 1...Gusty winds develop Friday afternoon with milder air followed by some showers Friday night into early Saturday morning. An upper-level trough is forecast to sharpen as it slides across the Great Lakes and into the Northeast Friday into Friday night. This will drive a quick moving surface low that tracks to our north Friday night into early Saturday morning. A warm front will continue to lift across our area ahead of it followed by a weak cold front later Friday night. The pressure gradient is expected to tighten quite a bit during Friday ahead of this surface low, and with the low to mid level flow increasing in response, southwesterly surface flow will increase across our area. The model forecast soundings show some increase of the mixing layer during the day Friday, especially in the afternoon, and this will result in an increasing breeze. The peak wind gusts look to be up to 30 mph before diminishing Friday evening. It will be turning warmer, however a southerly wind will keep coastal areas much cooler. There will be enough moisture and forcing for some showers to develop upstream and these then slide southeastward starting later Friday afternoon (northwest areas) and continuing Friday night into early Saturday morning. Rainfall amounts look to be on the lighter side. Some elevated instability may try to approach from the west Friday night, however any thunder looks to remain west of our region. KEY MESSAGE 2...Temperatures continue to moderate this weekend with some showers Sunday night into Monday morning, then turning colder with gusty winds early next week. Our region will be to the northeast of a strong ridge in the southern Plains to the Southwest U.S. This ridge is kept at bay due to the northern stream tossing energy across the Northeast. The next system will be low pressure tracking to our north Sunday night into Monday morning, which pulls a strong cold front across our area. Prior to this front, a warmer air mass will be in place with some areas reaching to around 70F on Sunday. Some guidance is slower however with the cold front which does not bring it across our entire area until Monday morning. This would keep some showers going during the first half of Monday. High temperatures on Monday look to occur during the first half of the day, then as cold air advection deepens and strengths the temperatures should tend to fall some during the afternoon. A pressure gradient tightens in the wake of low pressure departing New England Monday and high pressure building toward the Ohio Valley. This combined with strong cold air advection will steepen the low-level lapse rates and result in deeper mixing. A gusty northwest winds results during Monday especially in the afternoon into the evening, with peak wind gusts potentially reaching 30-40 mph. There will be less wind on Tuesday, however chilly temperatures remain. Marine The conditions are anticipated to remain below Small Craft Advisory criteria through tonight. Stronger flow develops during Friday with a low-level jet arriving. This stronger flow will usher in milder air over the colder ocean therefore mixing will not be as efficient. However, a period of wind gusts to around 25 knots look probable with seas getting to 5 feet. Therefore, issued a Small Craft Advisory for Friday afternoon and evening. Outlook... Friday night...Small Craft Advisory conditions subside, especially overnight. Saturday...The conditions are anticipated to be below Small Craft Advisory criteria. Sunday and Monday...Small Craft Advisory conditions are probable starting Sunday night and continuing on Monday. Tuesday...The conditions are anticipated to be below Small Craft Advisory criteria. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...None. NJ...None. DE...None. MD...None. Marine Small Craft Advisory from 2pm Friday to midnight EDT Friday night for ANZ430-431. Small Craft Advisory from 2pm Friday to 6am EDT Saturday for ANZ450>455. |
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