Delaware Bay south of East Point NJ to Slaughter Beach DE Marine Forecast
| Today...Se Winds 10 To 15 Kt. Waves Around 2 Ft. Isolated Showers Late. |
| Tonight...S Winds 10 To 15 Kt. Waves Around 2 Ft. |
| Sun...S Winds 10 To 15 Kt, Becoming Sw 5 To 10 Kt In The Afternoon. Waves Around 2 Ft. |
| Sun Night...Sw Winds 5 To 10 Kt. Waves Around 2 Ft. |
| Mon...W Winds 5 To 10 Kt, Becoming S In The Afternoon. Waves Around 2 Ft. |
| Mon Night...S Winds 5 To 10 Kt. Waves Around 2 Ft. |
| Tue...S Winds 5 To 10 Kt. Waves Around 2 Ft. |
| Tue Night...Sw Winds Around 10 Kt, Becoming W After Midnight. Waves Around 2 Ft. |
| Wed...N Winds Around 10 Kt, Becoming E In The Afternoon. Waves Around 2 Ft. |
| Wed Night...Se Winds 5 To 10 Kt. Waves Around 2 Ft. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 656am EDT Sat April 27 2024 Synopsis Warm front arrives Saturday afternoon, bringing above normal temperatures for the rest of the weekend and into early next week. High pressure will remain in control behind the front with low chances of showers and storms. A weak system will bring a more widespread chance of storms on Tuesday, although temperatures will remain above normal through much of next week. Near Term - Through Tonight Increasing clouds during the day Saturday as a warm front approaches from the west and moves eastward through the region late this afternoon and into the evening. There will be some showers associated with this front as it arrives across eastern PA, but very dry low levels will help prevent much of it reaching the ground. Still cannot rule out some isolated to scattered light showers mid to late afternoon, however, mainly for eastern PA, the Delmarva, and adjacent portions of NJ, roughly as far east as Trenton. The cloud cover will keep temperatures a bit cool with highs in the upper 50s to low 60s. With the warm front passage and cloud coverage overhead, expecting a more seasonable Saturday night temperature-wise with lows in the mid to upper 40s (low 40s Poconos). The warm advection aloft should result in some isolated to scattered showers overnight, mainly near and north/east of Philly. Short Term - Sunday Through Monday Night The story of the short term forecast will mainly be warm temperatures. An upper-level ridge axis over the eastern CONUS Sunday will slowly drift eastwards with time. Though this ridge axis may diminish in strength some later Monday into Monday night, high anomalous geopotential heigheights will prevail over the region through the end of the term. Meanwhile, at the surface level, high pressure systems will look to be centered off the coast of the Mid-Atlantic region and north of the Great Lakes region Sunday. With time, the high pressure off the Mid-Atlantic will look to slide southwards as the high pressure system well to our northwest slides eastwards. Given the synoptic pattern and evolution described, the region will see strong warm air advection (WAA) during the short term leading to very warm temperatures. Highs mainly in the upper 70s to low 80s are in the forecast for Sunday. With even stronger WAA (Warm Air Advection - the movement of warm air) Sunday night and Monday many locations will see high temperatures in the mid to upper 80s Monday. Mesoscale wise, with synoptic winds forecast to only be 5-10 mph Monday, a strong sea breeze will probably develop. Coastal areas could see high temperatures approximately 10 degrees colder than most inland locations both Sunday and Monday. It will be interesting to see how far inland the sea breeze ends up penetrating Monday evening. Otherwise, some shortwave energy could propagate through Sunday/Sunday night and Monday/Monday night. A few scattered showers and thunderstorms are possible for our northern and northwestern most areas Sunday afternoon/Sunday night and Monday afternoon/Monday night. Long Term - Tuesday Through Friday Fairly unsettled but not too overly impactful long term looks to be on the horizon. The upper-level ridge axis over the northeastern CONUS Tuesday looks to break down with time. Though the ensembles suggest another weaker ridge axis could build to our west while moving eastwards with time Tuesday night into Thursday, the overall upper-level pattern looks to become more zonal like and somewhat slow moving Tuesday night onwards. Weak trough looks to approach Tuesday and move through the region Tuesday/Tuesday night. Otherwise, multiple rounds of shortwave energy and perhaps some weak surface boundaries hanging around or moving through could be in the cards. Stuck with NBM PoPS for this forecast. Slight chance or chance of showers each day. Greatest chance for showers and thunderstorms is later Tuesday/Tuesday night time frame and Friday/Friday night time frame. Upper-level trough will look to come through Tuesday/Tuesday night with cold front at the surface. Another cold front passing through is possible Friday into Friday night. Well above average temperatures expected to continue into Tuesday. Above average temperatures likely Wednesday through the end of the term. Marine A few stronger wind gusts could develop across the upper Delaware Bay/lower Delaware River with SSE winds funneling and gusting to around 20 kts. Otherwise, conditions will remain below Small Craft Advisory levels through Saturday night with east to southeast winds generally around 10 knots and seas 2 to 4 feet. Outlook... Sunday through Wednesday...No marine headlines anticipated. Scattered showers/thunderstorms possible Tuesday afternoon/Tuesday night. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...Frost Advisory until 9am EDT this morning for PAZ060>062-103- 105-106. NJ...Frost Advisory until 9am EDT this morning for NJZ001-007>010- 012-013-015>022-027. DE...None. MD...None. Marine None. |
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