Great Egg Inlet to Cape May NJ out 20 NM Marine Forecast
| Tonight...Ne Winds 30 To 40 Kt. Seas 12 To 17 Ft. Wave Detail: E 16 Ft At 11 Seconds. Periods Of Rain. |
| Mon...Ne Winds 25 To 30 Kt. Seas 11 To 13 Ft, Subsiding To 9 To 11 Ft In The Afternoon. Wave Detail: E 13 Ft At 12 Seconds, Becoming E 11 Ft At 12 Seconds. Periods Of Rain. |
| Mon Night...Ne Winds Around 25 Kt With Gusts Up To 35 Kt. Seas 8 To 10 Ft. Wave Detail: E 10 Ft At 11 Seconds. Showers Likely. |
| Tue...N Winds 20 To 25 Kt With Gusts Up To 35 Kt. Seas 7 To 10 Ft. Wave Detail: E 10 Ft At 11 Seconds. Showers Likely, Mainly In The Morning. |
| Tue Night...N Winds 15 To 20 Kt With Gusts Up To 30 Kt. Seas 6 To 9 Ft. Wave Detail: E 9 Ft At 10 Seconds. A Chance Of Showers In The Evening. |
| Wed...N Winds 15 To 20 Kt With Gusts Up To 30 Kt. Seas 5 To 7 Ft. Wave Detail: E 7 Ft At 10 Seconds. |
| Wed Night...N Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 5 To 8 Ft. |
| Thu...N Winds 20 To 25 Kt. Seas 5 To 7 Ft. |
| Thu Night...N Winds 20 To 25 Kt. Seas 5 To 7 Ft. |
| Fri...N Winds 15 To 20 Kt, Becoming Nw 10 To 15 Kt In The Afternoon. Seas 4 To 6 Ft. |
| Fri Night...Nw Winds 10 To 15 Kt. Seas 3 To 4 Ft. |
| Area Forecast Discussion ...CORRECTED National Weather Service Mount Holly NJ 402pm EDT Sunday Oct 12 2025 Synopsis A coastal storm will affect the region through Monday bringing significant impacts to parts of our area. Improving conditions expected by Tuesday as the storm weakens and moves out to sea. High pressure will begin building back into the region during the middle to end of next week. Near Term - Through Monday Night A significant coastal storm is impacting the region this afternoon. The forecast remains on track overall. Most severe impacts remain near and along the coast as wind gusts over 50 MPH have been observed for the past several hours. As a brisk low-level jet moves overhead later this afternoon and evening at the coast, winds could become even stronger, with gusts near 60 MPH at the Jersey Shore and Delaware beaches. No changes were made to the wind headlines, with a High Wind Warning still in place for the immediate coastlines of New Jersey and Delaware as well as all of Cape May County through 5am tomorrow. Wind Advisory remains in place for Monmouth, Ocean, and Atlantic County in NJ outside of the coastal strip through the same time, with the same being true for mainland Sussex County, DE. In terms of rainfall, the forecast continues to trend downward as a more strung out, double barrel low has developed. Main concern with this system is the tidal flooding and wind, with the remaining a limited tertiary threat. So far, about an inch of rain has fallen along the coast. When we're all said and done, the coast will end up with about 1.5 to 3 inches, with around a half inch to 1.5 inches elsewhere. This will fall all over a 36-48 hour period though, with this looking like a more beneficial rain rather than a significant freshwater flood event. In terms of how the timing looks, there will be a push of more moderate rain overspreading the region this evening into the overnight hours. That will continue through the morning hours, with more light and scattered wrap-around showers expected during the daytime hours tomorrow on the backside of the low as it pulls away. We finally start to dry out later tomorrow night and transition to a quieter mid-week period. Winds will be strongest over the next 12 hours or so before dying down just before daybreak. Tomorrow still will be breezy though but nothing like today. Gusts inland could get near 30 MPH at times, with 40 MPH gusts at the immediate coast. It will be damp and dreary to start the week, with temperatures tomorrow in the upper 50s/low 60s. There won't be much of a drop overnight with temperatures, as lows will be in the low to mid 50s. Short Term - Tuesday Through Wednesday Conditions will improve across the area Tuesday morning as the slow moving coastal system moves away from our area. Lingering clouds and a few showers across NJ/DE early will decrease by afternoon. Increasing amounts of sunshine expected for the afternoon. Dry weather will be across the area Tuesday night and Wednesday as high pressure begins to build in. Temperatures will be within a few degrees of normal Tue/Wednesday with mostly mid/upper 60s most spots and lows favoring the low/mid 50s. Long Term - Wednesday Night Through Sunday Not much happening for the long term. Like last week, a large area of high pressure builds in during the midweek period and slowly moves away during the weekend. Models are showing a system following for late next weekend, but since it's at the edge of our forecast time range we'll just mention the slight chance or chance probability of precipitation for Sunday attm. Temperatures will be like last week too. Readings will be below normal Wednesday night/Thu then rise to above normal for next weekend. Normal highs for the Delaware Valley this time of year are in the mid 60s with lows in the upper 40s. Further north, highs are normal close to 60 with lows in the upper 30s. Marine A Storm Warning is in effect for all Atlantic coastal waters and lower Delaware Bay through Monday. Wind gusts of 50 kt or higher are expected especially this afternoon and during the overnight hours. Seas of 11 to 16 feet are expected. Winds are a bit less on the Upper Delaware Bay, around 30-40 kt out of the northeast. Once the Storm Warning expires, a Gale Warning likely will be needed as 34+ kt wind gusts could continue through Monday Night. Seas Monday Night of 8 to 12 feet expected. Outlook... SCA/low-end Gales continue Tuesday into Wednesday many areas then lowering winds and seas into the late week period and continuing Sat. Showers Tuesday then Fair for Wednesday thru Sat. Tides / Coastal Flooding Moderate to major coastal flooding impacts have begun and will continue through Monday as a coastal storm impacts the region. Guidance still varies in potential outcomes of this storm with regard to severity of coastal flood impacts locally, however we remain very concerned about the potential for significant impacts from this storm along our coasts. At this time, the greatest threat of impacts are anticipated to occur along the Atlantic coasts of New Jersey and Delaware, and Delaware Bay. While the forecast may change and waffle between Moderate or Major, the actual flood stage and tide level will not change much. Regardless of what level the tides hit, an impactful event is expected and residents should listen to officials and emergency managers throughout this event. A Coastal Flood Warning remains in effect for through Monday evening. Widespread minor tidal flooding is expected on the tidal Delaware River with tonight and tomorrow night's high tide, where a Coastal Flood Advisory is in effect. Severe beach erosion and dune breaching are quite possible along the entire New Jersey Shore and for Delaware Beaches due to the very high surf conditions that are expected. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...Coastal Flood Advisory until 11pm EDT Monday for PAZ070-071- 106. NJ...Coastal Flood Warning until 9pm EDT Monday for NJZ016. Coastal Flood Warning until 8pm EDT Monday for NJZ012>014- 020>027. Wind Advisory until 6am EDT Monday for NJZ013-020-022-027. High Wind Warning until 6am EDT Monday for NJZ014-023>026. Coastal Flood Advisory until 11pm EDT Monday for NJZ017>019. DE...Coastal Flood Warning until 9pm EDT Monday for DEZ001. Coastal Flood Warning until 8pm EDT Monday for DEZ002>004. Wind Advisory until 6am EDT Monday for DEZ003. High Wind Warning until 6am EDT Monday for DEZ004. MD...None. Marine Gale Warning until 8pm EDT Monday for ANZ430. Storm Warning until 8pm EDT Monday for ANZ431-450>455. |
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