Sandy Hook to Manasquan Inlet NJ out 20 NM Marine Forecast
| Tonight...W Winds 10 To 15 Kt. Gusts Up To 25 Kt Until Early Morning. Seas 2 To 4 Ft. Wave Detail: W 3 Ft At 4 Seconds And Se 2 Ft At 9 Seconds. |
| Wed...Sw Winds 15 To 20 Kt With Gusts Up To 25 Kt, Increasing To 25 To 30 Kt In The Afternoon. Seas Around 2 Ft, Building To 3 To 5 Ft In The Afternoon. Wave Detail: Sw 2 Ft At 3 Seconds And Se 1 Foot At 9 Seconds, Becoming S 5 Ft At 5 Seconds And Se 5 Ft At 9 Seconds. |
| Wed Night...Sw Winds 25 To 30 Kt, Becoming Nw 25 To 35 Kt After Midnight. Seas 5 To 7 Ft. Wave Detail: S 7 Ft At 8 Seconds And W 6 Ft At 5 Seconds. |
| Thu...Nw Winds 20 To 25 Kt With Gusts Up To 35 Kt, Diminishing To 15 To 20 Kt With Gusts Up To 25 Kt In The Afternoon. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 5 Seconds And S 4 Ft At 9 Seconds. |
| Thu Night...Nw Winds 10 To 15 Kt With Gusts Up To 20 Kt, Diminishing To 5 To 10 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: Nw 3 Ft At 4 Seconds And S 1 Foot At 8 Seconds. |
| Fri...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt, Becoming S 15 To 20 Kt With Gusts Up To 30 Kt In The Afternoon. Seas Around 2 Ft, Building To 3 To 5 Ft In The Afternoon. Wave Detail: Sw 1 Foot At 3 Seconds And Se 1 Foot At 8 Seconds, Becoming S 5 Ft At 5 Seconds And Se 4 Ft At 11 Seconds. |
| Fri Night...Sw Winds 15 To 20 Kt With Gusts Up To 30 Kt. Seas 5 To 7 Ft. A Chance Of Rain In The Evening, Then Rain Likely After Midnight. |
| Sat...W Winds 10 To 15 Kt. Seas 4 To 6 Ft. A Chance Of Rain In The Morning. |
| Sat Night...Nw Winds Around 10 Kt, Becoming Ne After Midnight. Seas 3 To 4 Ft. |
| Sun...Se Winds 10 To 15 Kt. Seas 3 To 4 Ft. A Chance Of Rain. |
| Sun Night...Sw Winds 10 To 15 Kt, Becoming Nw After Midnight. Seas 3 To 4 Ft. Rain Likely, Mainly In The Evening. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 959pm EST Tuesday Nov 4 2025 Synopsis High pressure will initially be in control across the area. Low pressure will pass to the north of the area Wednesday night, with a trailing cold front tracking through the region. High pressure will briefly build back in Thursday night into Friday, before another strong low and cold front move through Friday night. A fairly active pattern will continue through the weekend and into early next week, with another storm system bringing potential impacts to the area Sunday into Monday. Near Term - Through Wednesday Night As we go into tonight, winds diminish fairly quickly this evening both due to the loss of heating/mixing as well as a relaxing pressure gradient. High pressure will be situated to our south with the northern extent of this ridge extending into the mid Atlantic by later tonight. This will lead to fairly good conditions for radiational cooling although the airmass is not particularly cold. As a result, generally expect lows ranging from the low to mid 30s north with upper 30s to around 40 south. For Wednesday, high pressure will move off the coast to our south as the next area of low pressure approaches from the west. This will lead to warmer temperatures with increasing southwest winds through the day. Generally expect highs in the 60s for most areas with the potential for SW winds to gust 20 to 30 mph by late day. Things get more interesting for Wednesday night as deepening low pressure passes by to our north en route from Lake Ontario towards New England. There will also be a new area of high pressure building into the midwestern states by later at night in this system's wake. The upshot of all this is that the pressure gradient will really increase, especially following the passage of a cold front that will move through during the late evening into the overnight. A couple things to note with this...1) Along the front there could be some low topped convection that brings very strong winds aloft down to the surface. Winds are forecast to be up to 50 knots in the lowest few thousand feet so even though any precipitation would likely just be showers (thunder unlikely) it could still bring wind gusts of 50 to 60 mph down to the surface. The best chances for this would be around the late evening mainly over our NE PA into NW NJ zones. 2) Following the passage of the cold front there will be sharp pressure rises along with a strong pressure gradient. Low level lapse rates will also be fairly steep with winds at the top of the boundary layer of 50+ knots. As a result of all this, expect a period of very strong NW winds following the passage of the front around the late evening into the overnight. Wind gusts of 45 to 60 mph will be possible with the strongest winds likely extending from around Berks County east and northeast through the Lehigh Valley and then into northern NJ. We've issued a High Wind Watch 6pm Wednesday to 6am Thu to cover this threat and it basically encompasses the northern 40 percent of the CWA...not getting down to the I-95 corridor. These areas under the Watch have the best chance of seeing damaging wind gusts up to 60 mph but can't rule out areas even south of here seeing wind gusts of 45 to 55+ mph. Expect the strongest of the winds over roughly a 6 to 9 hour period and they should be starting to diminish by Thursday morning. Expect lows generally ranging from the mid 30s north to the mid 40s south. Short Term - Thursday Through Friday Night Strong northwesterly flow aloft on the back side of the trough departing to the east will initially be located over the area Thursday morning. H5 heigheights will rise through the day Thursday and into Thursday night as a ridge axis briefly shifts over the area. At the surface, high pressure initially over the Ohio Valley will quickly shift east to the Mid-Atlantic and New England coasts by Friday morning. Under partly to mostly clear skies, but breezy northwesterly wind, temperatures on Thursday will be seasonably cool, ranging from the low 50s across much of eastern PA and northern NJ to the mid-upper 50s across southern NJ and the Delmarva. Thursday night, cloud cover may begin to increase a bit, but with winds becoming nearly calm, radiational cooling should allow for temperatures to quickly fall. Lows are expected to be in the upper 20s across the Poconos and into much of northern NJ, with a freeze possible for the remainder of southeastern PA outside of the urban corridor, and southern NJ away from the coastal plain. Mid 30s to near 40 are expected for the coastal plain, the urban corridor, and the Delmarva. The growing season remains active for Camden and Atlantic Counties and points south and west. Frost/freeze headlines may become necessary for portions of these areas in future updates. By Friday morning, heigheights will again begin to fall with the approach of another impulse which will move through the region Friday night. At the surface, high pressure will continue to shift east through the day as the next system approaches. Low pressure will track eastward out of the northern Great Lakes region into far northern New England into Friday night, with a trailing cold front passing through the area beginning during the overnight hours. Friday is expected to be near normal in terms of temperatures with the upper 50s to lower 60s in most locations under increasing cloud cover. Overnight Friday night, widespread showers are expected ahead of the approaching cold front, as well as with its passage. At this time, very little elevated instability is expected to be present, so thunder appears unlikely. While most locations will likely see some rain, amounts generally appear under 0.5" at this time. With widespread clouds, rain, and a late frontal passage, overnight lows Friday night look fairly warm, ranging from the mid 40s across most of eastern PA and northern NJ to the low-mid 50s across far southeastern PA, southern NJ, and the Delmarva. Long Term - Saturday Through Tuesday A closed upper-low is expected to be located over Quebec to start the period and it will meander in the same vicinity through the weekend and into early next week before beginning to lift northeastward. The cold front will continue to track through the region, clearing the coast by afternoon. After the frontal passage, enhanced southwesterly flow aloft and gradual height falls are expected through Saturday night, with gradually falling surface pressure as well as a low tracks eastward out of the Great Lakes. Behind the front mainly northwest of the Fall Line, dry and seasonable conditions are expected on Saturday. Ahead of the front with warm air advection occurring, temperatures will likely be several degrees above normal, even with some showers still around. Temperatures will cool for all areas back to near seasonal norms and precipitation chances will end with the frontal passage. Sunday, southwesterly flow aloft will enhance even further as a strong embedded shortwave axis approaches. The shortwave axis is expected to pass through the area on Monday. Broad troughing is expected to remain in place across the eastern tier of the US through Tuesday. At the surface, low pressure will track northeastward from the Great Lakes region to New England, with a strong associated cold front passing through the area by Monday morning. High pressure should begin to build into the area from the Tennessee Valley region Tuesday. Rain chances will increase through the day on Sunday, with NBM PoPs currently in the 30-50% range areawide. See no reason to stray from that at this time. Temperatures are expected to be fairly close to seasonal norms. Rain chances will decrease Sunday night, but slight chance Probability of Precipitation (around 20%) will remain through Monday night under northwesterly flow and some remaining moisture. Aside from the chance for rain, it looks likely that the coldest air of the season thus far will accompany the early week cold front. Temperatures may be 10 degrees or more below average Monday and Tuesday. Monday night has a good chance to see lows below freezing across the entire area. Marine A Small Craft Advisory remains in effect but this ends early this evening as the winds diminish. Winds then ramp up again by Wednesday afternoon and by Wednesday night there will be the potential for storm force wind gusts over our northern ocean zones (450, 451) with Gales farther south. Seas increase to around 6 to 8 feet. Also, the strong offshore winds are expected to lead to abnormally low water levels for the low tides Wednesday night into Thursday morning. This can lead to hazardous navigating conditions near the coast. Outlook... Thursday...While conditions are expected to improve with time, SCA (Small Craft Advisory) conditions are likely early in the day. Northwest wind 25-30 kt with seas 4-6 feet in the morning, decreasing by afternoon. Thursday night...Sub-SCA (Small Craft Advisory) conditions expected with winds below 25 kt and seas below 5 feet. Friday through Saturday...Marine headlines will likely be necessary, with enhanced winds and seas. Saturday night through Sunday...No marine headlines expected at this time with seas below 25 kt and seas below 5 feet. NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...High Wind Watch from Wednesday evening through Thursday morning for PAZ054-055-060>062-103-105. NJ...High Wind Watch from Wednesday evening through Thursday morning for NJZ001-007>010. DE...None. MD...None. Marine Gale Watch from Wednesday evening through Thursday morning for ANZ430-431. Storm Watch from Wednesday evening through Thursday morning for ANZ450-451. Gale Watch from Wednesday afternoon through Thursday morning for ANZ452>455. |
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