Great Egg Inlet to Cape May NJ out 20 NM Marine Forecast
| Tonight...Se Winds 10 To 15 Kt. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 4 Seconds And Se 1 Foot At 9 Seconds. A Chance Of Showers And Tstms After Midnight. Showers Likely With A Chance Of Tstms Late. |
| Sun...Sw Winds 10 To 15 Kt, Becoming W 5 To 10 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 5 Seconds And Se 1 Foot At 10 Seconds. Showers With A Chance Of Tstms In The Morning, Then A Chance Of Showers In The Afternoon. |
| Sun Night...Sw Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 5 Seconds And Se 2 Ft At 10 Seconds. |
| Mon...N Winds 10 To 15 Kt With Gusts Up To 25 Kt. Seas 2 To 3 Ft. Wave Detail: N 2 Ft At 4 Seconds And Se 2 Ft At 9 Seconds. |
| Mon Night...N Winds 10 To 15 Kt With Gusts Up To 25 Kt. Seas 2 To 4 Ft. Wave Detail: N 3 Ft At 4 Seconds And Se 2 Ft At 9 Seconds. |
| Tue...Ne Winds 10 To 15 Kt. Seas 3 To 4 Ft. Wave Detail: Ne 3 Ft At 6 Seconds And S 1 Foot At 6 Seconds. |
| Tue Night...E Winds 5 To 10 Kt, Diminishing To Around 5 Kt After Midnight. Seas 3 To 4 Ft. |
| Wed...E Winds Around 5 Kt. Seas 3 To 4 Ft. |
| Wed Night...S Winds Around 5 Kt. Seas 3 To 4 Ft. |
| Thu...S Winds Around 5 Kt, Increasing To 5 To 10 Kt In The Afternoon. Seas Around 3 Ft. |
| Thu Night...Sw Winds 5 To 10 Kt. Seas 2 To 3 Ft. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 836pm EDT Sat September 12 2026 .WHAT HAS CHANGED... Aviation section updated for 00Z TAFs but no major changes to the forecast. .KEY MESSAGES... 1. Low pressure lifting through the region tonight through Sunday morning will produce showers and thunderstorms with the potential for flash flooding across portions of the forecast area. 2. A cold front Thursday into Friday may bring some showers and thunderstorms. KEY MESSAGE 1...Low pressure lifting through the region tonight through Sunday morning will produce showers and thunderstorms with the potential for flash flooding across portions of the forecast area. High pressure has moved offshore with a return flow beginning to take shape across the area. As this continues to occur, low level moisture will increase over the area. Meanwhile, low pressure will organize and develop over the Mid-Atlantic. A warm front associated with that low will lift north through the region later this evening into the overnight , and then southerly flow will allow dew points to rise well into the 60s and low 70s. PWATs (Precipitable Waters) will rise to 2-2.25 inches. Low pressure then follows north through the region late tonight through Sunday morning. This system will be fairly progressive, lifting from Delmarva around midnight tonight to Long Island by around midday Sunday. However, due to the high moisture content in the atmosphere, there will be a 6-8 hour window during the early morning hours on Sunday where as much as 1-2 inches of convective rain will fall. The primary area of concern is the I-95 corridor and surrounding urban areas and small streams where flash flooding is more possible given any rapid runoff. It is these areas that are under a Flood Watch for flash flooding that begins at midnight tonight running until Noon Sunday. Precipitation tapers off Sunday morning as low pressure departs. A weak cold front swings through Sunday afternoon behind the low followed by a secondary cold front Sunday night. KEY MESSAGE 2...A cold front Thursday into Friday may bring some showers and thunderstorms. An upper-level trough across central into eastern Canada is forecast to push a cold front into our area at the end of next week. While the guidance, including ensembles, are in decent agreement showing this trough, there are significant differences with the amplification and therefore speed of the trough. This will have impacts to the cold front itself. If the main energy slides far enough north of our area, the front may tend to be slower moving. This scenario would open the door for a greater chance for a round of convection. A faster movement to the front would lessen the length of convection over our area. The front may then stall to our south into next weekend, with one or more possible waves of low pressure tracking along it with time. A plume of deeper moisture looks to get drawn northward ahead of this front, therefore some heavy rain potential may exist with it and this also depends on whether it stalls or not. Confidence remains low during this time frame. Marine Sub-Small Craft Advisory conditions today, tonight, and Sunday. E-SE winds 10 to 15 kt with gusts up to 20 kt today and tonight, then W-SW winds on Sunday. Seas 2 to 4 ft. VSBY restrictions in showers, scattered thunderstorms, and fog late tonight through early Sunday afternoon. Outlook... Sunday night and Monday...A period of Small Craft Advisory wind gusts (25 knots) are possible, mainly Monday into Monday night. Tuesday through Thursday...The conditions are anticipated to be below Small Craft Advisory criteria. Rip Currents... Sunday...Southwest winds around 10-15 mph in the morning diminish to around 5-10 mph from the west in the afternoon. Breaking wave heigheights will range between 1 to 3 feet. An underlying 1 foot southeast swell around 8 to 10 seconds will continue. Given these conditions, have opted to go with a LOW risk for rip currents for all beaches. Monday...West-northwest winds will be around 15-20 mph with seas will remaining at 1-2 feet. The underlying 1 foot 8 to 10 second southeasterly swell remains. Given these conditions, currently forecasting a LOW risk for rip currents for all beaches. For specific beach forecasts, visit weather.gov/beach/phi NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...Flood Watch from midnight EDT tonight through Sunday morning for PAZ070-071-103>106. NJ...Flood Watch from midnight EDT tonight through Sunday morning for NJZ008>010-012>020-026-027. DE...Flood Watch from midnight EDT tonight through Sunday morning for DEZ001. MD...None. Marine None. |
Dover DE Radar
Northeast Radar