Great Egg Inlet to Cape May NJ out 20 NM Marine Forecast
| Tonight...Sw Winds Around 10 Kt. Seas Around 2 Ft. Wave Detail: S 2 Ft At 3 Seconds And E 2 Ft At 9 Seconds. |
| Wed...Sw Winds 10 To 15 Kt, Becoming S 15 To 20 Kt With Gusts Up To 25 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 4 Seconds And E 1 Foot At 9 Seconds. |
| Wed Night...Sw Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 3 To 5 Ft. Wave Detail: S 5 Ft At 6 Seconds And E 1 Foot At 10 Seconds. |
| Thu...Sw Winds 20 To 25 Kt With Gusts Up To 30 Kt, Diminishing To 10 To 15 Kt With Gusts Up To 20 Kt In The Afternoon. Seas 3 To 5 Ft. Wave Detail: S 5 Ft At 6 Seconds And E 1 Foot At 9 Seconds. |
| Thu Night...W Winds Around 10 Kt With Gusts Up To 20 Kt, Becoming Nw After Midnight. Seas 2 To 4 Ft. Wave Detail: Sw 4 Ft At 6 Seconds And Se 1 Foot At 9 Seconds. Showers Likely. |
| Fri...N Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 7 Seconds And N 1 Foot At 3 Seconds. A Chance Of Showers In The Morning. |
| Fri Night...E Winds Around 5 Kt. Seas 2 To 3 Ft. |
| Sat...Se Winds 5 To 10 Kt. Seas Around 2 Ft. |
| Sat Night...Se Winds 5 To 10 Kt. Seas Around 2 Ft. A Chance Of Showers After Midnight. |
| Sun...Se Winds 5 To 10 Kt. Seas 2 To 3 Ft. A Chance Of Showers. |
| Sun Night...S Winds Around 10 Kt, Becoming Sw After Midnight. Seas 2 To 3 Ft. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 142am EDT Wednesday September 9 2026 .WHAT HAS CHANGED... .KEY MESSAGES... 1. High pressure continues to result in tranquil conditions today. 2. A cold front will cross through the area on Thursday bringing the potential for a round of showers and storms. 3. Another disturbance will approach the area on Saturday night into Sunday causing another round for showers and storms. KEY MESSAGE 1...High pressure continues to result in tranquil conditions today. Bermuda high pressure off the Mid-Atlantic coast continues to affect the region today. A southerly pressure gradient will tighten as a cold front approaches from the west. Temperatures will be warmer today compared to Monday with highs in the mid to upper 80s. Humidity levels will also creep up with surface dew points rising into the mid and upper 60s. High pressure over the region today will shift offshore tonight and remain offshore through Wednesday. Overall, very pleasant and tranquil conditions are expected to continue through Wednesday. Clear skies and light winds will prevail for the rest of today with highs in the upper 70s to mid 80s. Temps tonight will be warmer than the last couple due to a combination of light southerly flow and increasing high clouds keeping temps steady in the upper 50s to upper 60s. Wednesday's highs will be a few degrees warmer than those of today as southwesterly flow ramps up in the afternoon. Breezy conditions are expected with winds gusting up to 20-25 mph for inland locations and up to 25-30 mph near the coast. KEY MESSAGE 2...A cold front will cross through the area on Thursday bringing the potential for a round of showers and storms. Mid-level ridging will begin to break down on Wednesday across the region as an upper-low traverses portions of the Hudson Bay and into Quebec. Thursday into Thursday night, a pronounced shortwave will pass through the region, with a cold front tracking from northwest to southeast across the region during the evening into overnight hours. Some showers and a few embedded storms are expected late Wednesday night into early Thursday morning for mainly the Lehigh Valley, Poconos, and adjacent portions of northern NJ as a decaying line of showers originating from the eastern Great Lakes will be tracking toward the area. Some guidance is now bringing this activity as far southeast as the I-95 corridor by around daybreak Thursday. Probability of Precipitation during this timeframe are generally 50-60% across the Poconos, 20-40% for the Lehigh Valley and far northern NJ, and around 20% along I-95. Elsewhere, conditions will likely remain dry. On Thursday, the cold front will begin to approach the region by the afternoon and progress through the region into Thursday night. The strongest shear (0-6km Bulk Shear exceeding 40 kts) looks to remain across northern parts of the area and weaken with southern extent. Meanwhile, destabilization looks modest at best and confined to southern parts of the area. Given these factors, the most likely scenario is scattered showers and storms with very limited severe threat. However, some limited hydro concerns could evolve Thursday afternoon into Thursday night across mainly Delmarva into southeastern PA and southern NJ. WPC has a Marginal (1 of 4) Excessive Rainfall Outlook over these areas. Showers and storms look to clear southern parts of the forecast area by daybreak Friday. KEY MESSAGE 3...Another disturbance will approach the area on Saturday night into Sunday causing another round for showers and storms. Behind the front, a drier and more comfortable airmass looks to settle into the region for Friday and into at least the start of Saturday as high pressure temporary settles in. Beyond the first half of Saturday though, the forecast becomes a bit more uncertain as the front may stall off the southern Mid- Atlantic coast or lift slowly northward towards the area with waves of low pressure riding along it. If this is to come to fruition, there may be several periods of unsettled weather for Saturday night into Sunday. At this point, the highest chances for showers and storms appears to be Saturday night with PoPs in the 40-60% range areawide. The front looks to finally clear the area fully beyond Sunday, with warm and dry conditions to start next work week. Marine Small Craft Advisories remain in effect for the ocean waters starting later this afternoon, then for Delaware Bay and the ocean waters tonight. South to southwest winds will increase to 15 to 20 kt with 25 to 30 kt gusts later today and tonight. Seas will be 2 to 4 feet today, then 4 to 6 feet tonight. Outside of SCA (Small Craft Advisory) conditions, fair weather is expected. Outlook... Thursday...SCA (Small Craft Advisory) conditions to start the day with southwest winds 15-20 kt and gusts 25-30 kt. Seas 4-6 feet. Conditions are expected to gradually improve through the day, with winds and seas likely falling below SCA (Small Craft Advisory) criteria by late afternoon. Thursday night through Sunday...No marine headlines currently anticipated with winds below 25 kt and seas below 5 feet. Rip Currents... Wednesday, south to southwest winds 5 to 10 mph will increase to 15 to 20 mph with gusts up to 25 mph in the afternoon. Breaking waves will be 1 to 2 feet. There will be a light easterly swell with a period of 9 to 10 seconds. Given these factors, have maintained the LOW risk for the development of dangerous rip currents at all shore points. Thursday, southwest winds generally 10-20 mph and decreasing through the day. Breaking waves of 1-3 feet, also gradually diminishing. There may be an increased southerly swell. Given the potential for increased swell, there is a MODERATE risk for the development of dangerous rip currents at the Jersey Shore and a LOW risk for Delaware beaches. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...None. NJ...None. DE...None. MD...None. Marine Small Craft Advisory from 6pm this evening to 8am EDT Thursday for ANZ430-431. Small Craft Advisory from 4pm this afternoon to 2pm EDT Thursday for ANZ450>453. Small Craft Advisory from 4pm this afternoon to 10am EDT Thursday for ANZ454-455. |
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