Cape Henlopen to Fenwick Island DE out 20 nm Marine Forecast
| Today...Ne Winds Around 25 Kt With Gusts Up To 35 Kt. Seas 7 To 9 Ft. Wave Detail: Ne 8 Ft At 7 Seconds And E 1 Foot At 15 Seconds. A Chance Of Showers Early This Morning. |
| Tonight...Ne Winds 20 To 25 Kt, Diminishing To 15 To 20 Kt After Midnight. Seas 6 To 8 Ft. Wave Detail: Ne 8 Ft At 7 Seconds And E 7 Ft At 14 Seconds. |
| Mon...Ne Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 5 To 7 Ft. Wave Detail: E 6 Ft At 9 Seconds. |
| Mon Night...Ne Winds 10 To 15 Kt With Gusts Up To 20 Kt, Diminishing To 5 To 10 Kt After Midnight. Seas 5 To 6 Ft. Wave Detail: E 6 Ft At 9 Seconds. |
| Tue...Ne Winds 5 To 10 Kt. Seas 5 To 6 Ft. Wave Detail: E 6 Ft At 10 Seconds. |
| Tue Night...E Winds 5 To 10 Kt. Seas 5 To 6 Ft. Wave Detail: E 6 Ft At 10 Seconds. A Chance Of Showers. |
| Wed...Se Winds 5 To 10 Kt. Seas Around 5 Ft. Showers Likely In The Afternoon. |
| Wed Night...Se Winds Around 10 Kt, Becoming Sw After Midnight. Seas 4 To 5 Ft. Showers. |
| Thu...Nw Winds 10 To 15 Kt. Seas 4 To 5 Ft. A Chance Of Showers In The Morning. |
| Thu Night...Nw Winds 10 To 15 Kt, Increasing To 15 To 20 Kt After Midnight. Seas 3 To 4 Ft. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 349am EDT Sunday April 26 2026 .WHAT HAS CHANGED... Frost Advisory issued for portions of northwestern New Jersey and eastern Pennsylvania. .KEY MESSAGES... 1. Cloudy skies today, but drying out as high pressure builds into the region into tonight. Below normal temperatures will persist. Some areas of frost development forecast tonight for portions of New Jersey and eastern Pennsylvania. 2. Additional chances for much-needed rain arrive during the middle of next week. KEY MESSAGE 1...Cloudy skies today, but drying out as high pressure builds into the region into tonight. Below normal temperatures will persist. Some areas of frost development forecast tonight for portions of New Jersey and eastern Pennsylvania. Canadian high pressure will build into the region through tonight as low pressure that brought the weekend rain departs out to sea. Dry air will be slow to filter in through the day, so low stratus will persist much of the daytime hours. The stratus should begin to scatter out and dissipate from north to south during the afternoon to early evening hours. So while it'll be a cloudy day overall, most areas outside of far southern New Jersey and Delmarva should see at least a couple hours of sun before sunset this evening. A northeast breeze will persist today as well, generally around 10-15 mph, strongest near the coast where some gusts near 25-30 mph will remain possible. The cloudy skies will keep temperatures from warming up too much, so temperatures will remain below normal with highs mainly in the 50s. Northern NJ and eastern PA will make a run at 60 degrees though, as skies clearing earlier in the afternoon there should yield more substantial warming before the sunlight wanes. Highs closer to 50 degrees along the coast, where some drizzle may linger during the morning. As skies quickly clear into the night, radiational cooling will take hold. Winds should become light, favoring a northerly direction around 5 mph or less. Lows will range from the mid 30s to low 40s for most areas. Sheltered valleys of northwestern New Jersey and eastern Pennsylvania should be on the cooler side of this range, with the surface high in the vicinity. Thus, some areas of frost are likely to develop. A Frost Advisory was issued to highlight this threat. Farther south into interior southern NJ and the outer Philly suburbs in PA, lows in the mid to upper 30s could produce some patchy frost, but thinking coverage and temperatures will be a little too marginal to warrant an advisory at the moment. Will keep an eye on this though. KEY MESSAGE 2...Additional chances for much-needed rain arrive during the middle of next week. A brief period of high pressure on Monday, and some patchy frost may form in the Poconos overnight Monday night with radiational cooling and weak winds. A weak frontal boundary then approaches the region late Tuesday, bringing a chance for light rain. This frontal boundary will largely wash out across the region early Wednesday before another stronger low arrives late Wednesday into early Thursday that could bring more widespread showers and perhaps an isolated thunderstorm across the region. Marine A Small Craft Advisory is in effect for all coastal waters out to 20 NM as well as the Delaware Bay through 6am due to increasing winds and seas. After 6am today, coastal waters from Manasquan Inlet NJ south to Fenwick Island DE, and out to 60 NM will have a Gale Warning in effect as winds increase during the daytime hours today, ending at 8pm this evening. The SCA (Small Craft Advisory) for the Delaware Bay will remain in effect through 8pm as well. The SCA (Small Craft Advisory) for coastal waters north of Manasquan Inlet out to 20 NM has been extended to 6am Monday, as seas will remain elevated overnight even as winds decrease. Another, SCA (Small Craft Advisory) will be needed for areas within the Gale Warning as seas remain elevated in that area as well. In addition to SCA (Small Craft Advisory) and Gale conditions, visibility restrictions are also expected for all marine areas in rain and fog through this morning. Outlook... Monday through Monday night...SCA (Small Craft Advisory) conditions will linger through Monday with NE winds gusting near 25 kts and seas at 5-7 feet. Winds diminish below SCA (Small Craft Advisory) criteria Monday night, but seas will remain elevated. Tuesday through Thursday...SCA (Small Craft Advisory) conditions possible due to elevated seas around 5 feet. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...Frost Advisory from midnight tonight to 8am EDT Monday for PAZ054-055-062-105. NJ...Frost Advisory from midnight tonight to 8am EDT Monday for NJZ001-007-009. DE...None. MD...None. Marine Small Craft Advisory until 8pm EDT this evening for ANZ430- 431. Small Craft Advisory until 6am EDT Monday for ANZ450. Small Craft Advisory until 6am EDT early this morning for ANZ451>455. Gale Warning until 8pm EDT this evening for ANZ451>455- 481>483-485. |
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