Cape May NJ to Cape Henlopen DE out 20 nm Marine Forecast
| Tonight...S Winds Around 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 4 Seconds And Ne 1 Foot At 4 Seconds. |
| Thu...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt, Becoming W 5 To 10 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Sw 3 Ft At 5 Seconds And E 1 Foot At 8 Seconds. |
| Thu Night...Nw Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: W 2 Ft At 4 Seconds And E 1 Foot At 8 Seconds. |
| Fri...Nw Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 8 Seconds And Nw 1 Foot At 2 Seconds. |
| Fri Night...Nw Winds Around 5 Kt, Becoming N After Midnight. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 8 Seconds And Nw 1 Foot At 2 Seconds. |
| Sat...E Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 8 Seconds And Ne 1 Foot At 2 Seconds. |
| Sat Night...Se Winds Around 10 Kt. Seas Around 2 Ft. Showers Likely After Midnight. |
| Sun...Se Winds 10 To 15 Kt, Increasing To 15 To 20 Kt In The Afternoon. Seas 2 To 3 Ft, Building To 3 To 5 Ft In The Afternoon. Showers. |
| Sun Night...S Winds 15 To 20 Kt. Seas 5 To 7 Ft. Showers With A Chance Of Tstms. |
| Mon...Sw Winds 15 To 20 Kt, Becoming W 10 To 15 Kt In The Afternoon. Seas 4 To 6 Ft. Showers Likely, Mainly In The Morning. |
| Mon Night...Nw Winds Around 10 Kt. Seas 3 To 4 Ft. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 209pm EDT Wednesday Oct 7 2026 .WHAT HAS CHANGED... All sections updated, but no significant forecast changes. .KEY MESSAGES... 1. Tranquil weather will prevail this week continuing into the weekend with no significant weather hazards anticipated. 2. The remnants of what is now Tropical Storm Isaias will approach the area later this weekend bringing chances for rain as early as Sunday. KEY MESSAGE 1...Tranquil weather will prevail this week continuing into the weekend with no significant weather hazards anticipated. Aloft, a closed low will traverse portions of Ontario and the Hudson Bay and into Quebec through Friday, with long wave troughing across much of the northeastern US. Mid-level ridging will briefly build into the region for Saturday. At the surface, high pressure currently centered just offshore the Mid-Atlantic and New England coast will shift slowly eastward through tonight. A weak cold front will pass through the region during the morning and afternoon hours Thursday. After the cooler temperatures the past couple of days, a brief warmup is anticipated, with lows tonight generally in the low to mid 50s and highs on Thursday in the mid 70s. The cold frontal passage on Thursday will usher in drier air and nudge temperatures down a bit for Thursday night and into the first part of the weekend. Near- normal temperatures are expected Thursday night through Saturday, with lows in the mid 40s to low 50s and highs in the low to mid 70s for most locations. The cold frontal passage itself is expected to be dry, so tranquil conditions are expected through Saturday. KEY MESSAGE 2...The remnants of what is now Tropical Storm Isaias will approach the area later this weekend bringing chances for rain as early as Sunday. The primary forecast concern for the latter part of this weekend and perhaps into early next week will be the remnants of what is currently Tropical Storm Isaias in the Gulf. It is expected to intensify into a hurricane by Thursday morning, and make landfall somewhere along the northern Gulf coast Friday night as it begins interacting with an upper trough. From there, it is expected to undergo extratropical transition and continue northward into portions of the Ohio Valley through Saturday night, and then northeastward in the direction of our area on Sunday. Timing discrepancies remain amongst model guidance this afternoon, but there is strong agreement that the remnants of Isaias will bring some impacts to the region Sunday and perhaps into early Monday. At this point in time, it appears that widespread rain will be the primary impact. It should be noted that PWATs (Precipitable Waters) are modeled to be in the 1.5-2 inch range, so some periods of heavy rainfall will be possible. WPC has placed most of the region in a Marginal Risk (1 of 4) Excessive Rainfall Outlook for Sunday. It is too early to specify exact rainfall amounts, but confidence is higher than normal that a large portion of the area could end up with 1 to 2 inches of rain, with higher amounts certainly not out of the question. We will continue to monitor trends over the coming days. Marine South-southwest winds will increase this evening into tonight to 15- 20 kts. A few gusts around 25 kts are possible, but the current thinking is that conditions will come up just short of advisory criteria. Winds will shift to westerly in the wake of a cold front Thursday afternoon, at around the same magnitude. Winds are expected to begin to diminish by Thursday evening. Seas generally 2-4 feet. Outlook... Thursday night through Saturday night...No marine headlines currently anticipated with winds under 25 kts and seas below 5 feet. Sunday through Monday...Advisory conditions are possible with wind gusts in excess of 25 kts and seas in excess of 5 feet. Visibility restrictions are possible in rain and perhaps spray. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...None. NJ...None. DE...None. MD...None. Marine None. |
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