Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

4NM E Lewes DE

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSW wind 20 to 25 kt, with gusts as high as 35 kt. A slight chance of rain after 4pm.   Seas 4 to 5 ft.

      High: 48 °F

      SSW 25kt
      4-5ft

      Gale Warning
      Gale Warning

    • Tonight

      Tonight:SW wind around 20 kt becoming WNW after midnight. Winds could gust as high as 30 kt. A chance of rain, mainly before 8pm.   Seas around 4 ft.

      Low: 35 °F

      WNW 20kt
      4ft

      Gale Warning
      Gale Warning

    • Thursday

      Thursday:WNW wind 20 to 25 kt, with gusts as high as 35 kt. Sunny. Seas around 4 ft.

      High: 39 °F

      WNW 25kt
      4ft

    • Thursday Night

      Thursday Night:W wind around 20 kt, with gusts as high as 30 kt. Mostly clear. Seas around 3 ft.

      Low: 32 °F

      W 20kt
      3ft

    • Friday

      Friday:W wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. A slight chance of snow after 1pm.   Seas around 2 ft.

      High: 40 °F

      W 15kt⇓
      2ft

    • Friday Night

      Friday Night:W wind 5 to 10 kt. A chance of rain and snow before 10pm, then a chance of rain between 10pm and 4am, then a slight chance of snow after 4am.   Seas around 1 ft.

      Low: 34 °F

      W 10kt
      1ft

    • Saturday

      Saturday:W wind 15 to 20 kt. Partly sunny. Seas around 2 ft.

      High: 44 °F

      W 20kt
      2ft

    • Saturday Night

      Saturday Night:W wind 10 to 15 kt. A chance of snow.   Seas around 2 ft.

      Low: 32 °F

      W 15kt
      2ft

    • Sunday

      Sunday:WNW wind 15 to 20 kt increasing to 25 to 30 kt. A chance of snow.   Seas 2 ft building to 4 ft.

      High: 38 °F

      ⇑WNW 30kt
      Waves Building4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:10 am EST Dec 10, 2025
Forecast Valid: 9am EST Dec 10, 2025-6pm EST Dec 16, 2025

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Detailed Forecast

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

Today
SSW wind 20 to 25 kt, with gusts as high as 35 kt. A slight chance of rain after 4pm. Seas 4 to 5 ft.
Tonight
SW wind around 20 kt becoming WNW after midnight. Winds could gust as high as 30 kt. A chance of rain, mainly before 8pm. Seas around 4 ft.
Thursday
WNW wind 20 to 25 kt, with gusts as high as 35 kt. Sunny. Seas around 4 ft.
Thursday Night
W wind around 20 kt, with gusts as high as 30 kt. Mostly clear. Seas around 3 ft.
Friday
W wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. A slight chance of snow after 1pm. Seas around 2 ft.
Friday Night
W wind 5 to 10 kt. A chance of rain and snow before 10pm, then a chance of rain between 10pm and 4am, then a slight chance of snow after 4am. Seas around 1 ft.
Saturday
W wind 15 to 20 kt. Partly sunny. Seas around 2 ft.
Saturday Night
W wind 10 to 15 kt. A chance of snow. Seas around 2 ft.
Sunday
WNW wind 15 to 20 kt increasing to 25 to 30 kt. A chance of snow. Seas 2 ft building to 4 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 38.78°N 75.03°W
Last Update: 6:10 am EST Dec 10, 2025
Forecast Valid: 9am EST Dec 10, 2025-6pm EST Dec 16, 2025
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