Cape May NJ to Cape Henlopen DE out 20 nm Marine Forecast
| Today...Nw 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 5 To 7 Ft, Subsiding To 3 To 5 Ft This Afternoon. Wave Detail: N 6 Ft At 5 Seconds And Se 1 Foot At 10 Seconds, Becoming N 4 Ft At 6 Seconds And Se 1 Foot At 10 Seconds. Light Freezing Spray Early This Morning, Then A Chance Of Light Freezing Spray Late This Morning And Early Afternoon. |
| Tonight...W Winds 10 To 15 Kt. Seas 2 To 4 Ft. Wave Detail: W 3 Ft At 4 Seconds And Ne 2 Ft At 7 Seconds. |
| Tue...W Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: S 2 Ft At 5 Seconds And Nw 1 Foot At 3 Seconds. |
| Tue Night...Sw Winds 10 To 15 Kt. Gusts Up To 25 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 5 Seconds And Nw 1 Foot At 3 Seconds. |
| Wed...Sw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 2 To 4 Ft. Wave Detail: S 4 Ft At 6 Seconds And Se 1 Foot At 10 Seconds. |
| Wed Night...W Winds 10 To 15 Kt With Gusts Up To 20 Kt, Becoming N 5 To 10 Kt After Midnight. Seas 2 To 4 Ft. Wave Detail: S 3 Ft At 7 Seconds And W 1 Foot At 2 Seconds. |
| Thu...Se Winds 10 To 15 Kt, Becoming S 20 To 25 Kt In The Afternoon. Seas 2 To 4 Ft. |
| Thu Night...S Winds 25 To 30 Kt. Seas 5 To 7 Ft, Building To 6 To 9 Ft After Midnight. Rain. |
| Fri...W Winds 25 To 30 Kt. Seas 6 To 9 Ft. A Chance Of Rain In The Morning. |
| Fri Night...Nw Winds 25 To 30 Kt, Diminishing To 20 To 25 Kt After Midnight. Seas 5 To 7 Ft, Subsiding To 3 To 5 Ft After Midnight. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 1256pm EST Monday Dec 15 2025 Synopsis High pressure continues to build in from the west today. The center of this arctic high slides to our south Tuesday before weakening as it shifts offshore Wednesday. A warm front may slide by to our north Wednesday into Thursday, followed by a cold front Thursday night. High pressure returns to close out the week. Near Term - Through Tonight For today, we feel the influence of a high pressure system that settles over the southeast US with a weak surface trough nearby. An impulse will also be tracking through in the upper levels which will bring an increase in cloud cover through today. The combination of the surface trough and the upper-level energy will lead to the potential for a few snow showers. This activity would mainly be near and north of I-78. Any accumulation will be minimal with perhaps up to a coating in the higher elevations. Winds will continue to diminish through today with gusts up to 20-25 mph remaining possible. Due to the recent snow pack and the increasing cloud cover, temperatures will likely struggle to reach above freezing today. Highs today are in the mid 20s to low 30s with wind chills in the teens and 20s. Another cold night is expected tonight as lows are in the teens for many. Winds will be lighter tonight at around 10-15 mph early and then 5-10 mph towards Tuesday morning. Wind chill values tonight are in the teens mainly with perhaps the single digits for the higher elevations. Short Term - Tuesday Through Wednesday Night Surface high pressure slides by to our south by Tuesday, with southwesterly flow taking hold. This should allow temps to moderate a bit, with most places returning to the 30s, albeit mostly the lower 30s. We should start with sunshine, but an approaching upper disturbance moving in may bring more clouds by late afternoon. The high slides east off the coast Tuesday night, but with the flow slackening a bit. The weak disturbance passes, and with clearing skies, we should radiate back down into the 20s and teens. A weak front approaches from the northwest on Wednesday, but with no precipitation. However, the southwesterly flow should help boost temps more, with highs returning to the 40s for most despite the return of clouds. Weak high pressure returns behind said cold front, but there isn't much cold air with it as its more of a Pacific origin high. Lows in the 20s for most. Long Term - Thursday Through Monday That next weak high quickly moves east off the coast and stronger southerly flow develops ahead of the next system on Thursday. Clouds will become more dominant again but the southerly winds should bring milder air north, allowing many spots to approach or pass 50. For many areas this looks like the warmest day in weeks. A strong cold front attached to a low moving across the Great Lakes moves across the region for Thursday night into Friday morning, with a period of rain accompanied by gusty southerly winds becoming westerly. Lows Thursday night likely stay above freezing for most, but cold advection behind the front drops highs back into the 40s for most on Friday. High pressure builds back in for Friday night into Saturday, with lows back in the teens and 20s Friday night followed by highs in the 30s and 40s Saturday. While we should see some clearing Friday night, clouds likely begin returning Saturday as another frontal boundary approaches. This next front will bring a chance of rain Saturday night and especially Sunday, with a moderating trend in temps compared to the prior 24 hours. Marine As of 1:00 PM, Small Craft Advisories continue for the Atlantic Coastal Waters from Sandy Hook NJ to Little Egg Inlet NJ until 4 PM this afternoon as winds continue to remain elevated around 25-30 kt. All other SCA's (Small Craft Advisories) have been allowed to expire. West-northwest winds continue to subside this afternoon with seas of 2-4 feet. For tonight, no marine headlines are currently anticipated with winds remaining below 25 kt and seas below 5 feet. Outlook... No marine headlines expected Tuesday. SCA (Small Craft Advisory) conditions may then develop Tuesday night and Wednesday, possibly diminishing Wednesday night before resuming Thursday. Gales possible Thursday night and Friday. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...None. NJ...None. DE...None. MD...None. Marine Small Craft Advisory until 1pm EST this afternoon for ANZ430- 431-452>455. Small Craft Advisory until 4pm EST this afternoon for ANZ450- 451. |
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