Sandy Hook to Manasquan Inlet NJ out 20 NM Marine Forecast
| Today...E Winds 5 To 10 Kt, Becoming Se Late. Seas 2 To 3 Ft. Wave Detail: Se 2 Ft At 6 Seconds And E 2 Ft At 10 Seconds. |
| Tonight...S Winds 5 To 10 Kt, Diminishing To Around 5 Kt After Midnight. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 7 Seconds. |
| Mon...S Winds Around 5 Kt, Increasing To 5 To 10 Kt With Gusts Up To 20 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Se 2 Ft At 9 Seconds And S 1 Foot At 7 Seconds. |
| Mon Night...Sw Winds 5 To 10 Kt. Seas 2 To 3 Ft. Wave Detail: Se 2 Ft At 7 Seconds. |
| Tue...Sw Winds 5 To 10 Kt, Increasing To 10 To 15 Kt With Gusts Up To 20 Kt In The Afternoon. Seas 2 To 4 Ft. Wave Detail: S 3 Ft At 6 Seconds And Se 2 Ft At 9 Seconds. |
| Tue Night...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 3 To 4 Ft. Wave Detail: S 3 Ft At 5 Seconds And Se 1 Foot At 9 Seconds. |
| Wed...Sw Winds 10 To 15 Kt. Seas 2 To 3 Ft. |
| Wed Night...Nw Winds 5 To 10 Kt. Seas 2 To 3 Ft. |
| Thu...Nw Winds Around 5 Kt, Becoming Sw In The Afternoon. Seas Around 2 Ft. |
| Thu Night...W Winds 5 To 10 Kt, Becoming Nw After Midnight. Seas Around 2 Ft. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 826am EDT Sunday July 12 2026 .WHAT HAS CHANGED... Added climate section for Wednesday's heat. .KEY MESSAGES... 1. Minor tidal flooding will continue with tonight's high tide for the Atlantic coastline and Delaware Bay. Further Coastal Flood Advisories may be needed. 2. Relatively tranquil and seasonable through Monday, though a low chance (15-30%) of showers/isolated thunderstorms was added for the Pocono Plateau this afternoon. 3. Above normal temperatures take over by Tuesday, likely continuing through the end of the week. Wednesday may need heat headlines. 4. Friday could be active and unsettled with a chance for showers and thunderstorms, some of which could be severe. KEY MESSAGE 1...Minor tidal flooding will continue with tonight's high tide for the Atlantic coastline and Delaware Bay. Further Coastal Flood Advisories may be needed. A relatively light onshore flow will continue through today resulting in a minor push of water towards the coastline. Astronomical tides are also increasing with the upcoming New Moon on Tuesday. This will result in elevated tides with minor tidal flooding likely with the evening high tide cycle. The severity looks to remain within minor levels but will monitor how things trend over the coming days. For tonight, a new Coastal Flood Advisory was issued for the South Jersey and Delaware coast as well as for the entirety of Delaware Bay including Salem and New Castle County for this evening's high tide. Widespread minor tidal flooding is expected again, and guidance shows tides perhaps a touch higher compared to last night. Only spotty minor flooding is expected north of Atlantic City, so no Advisory is currently in place for those areas. Cannot rule out some spotty minor tidal flooding for communities along the Delaware River with the upcoming elevated tides. No tidal flooding is expected in our Eastern Shore zones along the Chesapeake Bay. KEY MESSAGE 2...Relatively tranquil and pleasant through Monday, though a low chance (15-30%) of showers/isolated thunderstorms was added for the Pocono Plateau this afternoon. We transition to a period of tranquil weather today as high pressure builds in. However, guidance continues to hint at some orographically-driven showers and isolated thunderstorms developing over the Pocono Plateau this afternoon. Have added around a 15-30% chance of precipitation for the afternoon and early evening, though not anticipating any significant impacts and the rest of the area should be dry. Dry conditions will continue through Monday. Seasonable temperatures expected (or even a touch below normal) with low to mid 80s both days with lows in the low to mid 60s. KEY MESSAGE 3...Above normal temperatures take over by Tuesday, likely continuing through the end of the week. Wednesday may need heat headlines. A more typical summertime pattern sets up beginning on Tuesday. Temperatures are expected to get above normal as ridging extends into the Mid-Atlantic from the west with surface high pressure strengthening offshore. This will set up warm southerly flow, allowing the heat and humidity to return, though not nearly as bad as how we started July. The heat peaks on Wednesday, where heat headlines look increasingly likely for at least some of the area as temperatures should get well into the 90s with increasing humidity. A dry cold front looks to pass sometime late Wednesday which will knock down temperatures a bit, but medium range guidance and ensembles indicate above normal temperatures in the upper 80s/low 90s could remain through the end of the week and potentially into the weekend. KEY MESSAGE 4...Friday could be active and unsettled with a chance for showers and thunderstorms, some of which could be severe. We are still several days out but we are monitoring the severe weather setup on Friday. The Storm Prediction Center (SPC) has highlighted most of the area in a Slight Risk (15% chance of severe thunderstorms 25 miles from any point). Storms look to be driven by a strong cold front swinging in from the northwest and with ample daytime heating and instability, the ingredients are certainly there for strong to severe thunderstorms and damaging wind gusts. In their long term outlook, Storm Prediction Center did mention some small MCS (Mesoscale Convective System, a complex of thunderstorms which becomes organized on a scale larger than the individual thunderstorms) potential during the day 7 to 10 period as some shortwaves are likely to ripple through the northwest flow. Again, still several days out, but we will have to monitor the severe weather potential for the end of the week and possibly next weekend. Marine Sub-SCA (Small Craft Advisory) conditions expected through tonight with east/northeast winds around 10 to 15 kt and seas 2 to 3 feet. Outlook... Monday through Thursday...No marine headlines expected. Rip Currents... For today, onshore flow strengthens with winds around 10 to 20 MPH (higher end of that range across southern areas). Wave guidance shows multiple swell groups as well with one secondary swell being around 10 seconds. Breaking waves of 2 to 4 feet are expected. With modest onshore flow and a 10 second swell among multiple swell groups, all beaches have been upgraded to a MODERATE risk for the development of rip currents. For Monday, winds weaken to around 10 MPH or less with wave heigheights slightly lower as well. Wave guidance now only has one swell group of around 6 seconds. A southeasterly swell does develop and we get within a day of the New Moon, however with a short period, relatively light winds, and low breaking waves, a LOW risk for the development of rip currents should be sufficient for now. For specific beach forecasts, visit weather.gov/beach/phi Climate A brief 1-day spike in temperatures is expected, with highs likely to approach records. Here are the records for Wednesday, July 15: Allentown/ABE 98 in 1995 AC Airport/ACY 100 in 1995 AC Marina/55N 99 in 1995 Georgetown/GED 96 in 2024 and 1993 Mount Pocono/MPO 92 in 1954 Philadelphia/PHL 103 in 1995 Reading/RDG 100 in 1995 Trenton/TTN 101 in 1995 Wilmington/ILG 99 in 1997 and 1995 NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...None. NJ...Coastal Flood Advisory from 8pm this evening to midnight EDT tonight for NJZ016. Coastal Flood Advisory from 5pm this afternoon to 11pm EDT this evening for NJZ021>025. DE...Coastal Flood Advisory from 8pm this evening to midnight EDT tonight for DEZ001. Coastal Flood Advisory from 5pm this afternoon to 11pm EDT this evening for DEZ002>004. MD...None. Marine None. |
Mount Holly NJ Radar
Northeast Radar
East Coast Satellite