Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

20NM NNW Lewes DE

Marine Point Forecast

[NOTICE]
    • Today

      Today:NNE wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves around 1 ft.

      High: 39 °F

      NNE 10kt
      1ft

    • Tonight

      Tonight:SW wind 15 to 20 kt. Partly cloudy. Waves 1 to 2 ft.

      Low: 36 °F

      SW 20kt
      1-2ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:SSW wind 20 to 25 kt. A chance of rain, mainly after 1pm.   Waves around 3 ft.

      High: 46 °F

      SSW 25kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:SW wind around 25 kt becoming W after midnight. A slight chance of rain before 10pm.   Waves around 3 ft.

      Low: 36 °F

      SW 25kt
      3ft

    • Thursday

      Thursday:WNW wind around 25 kt. Mostly sunny. Waves around 3 ft.

      High: 40 °F

      WNW 25kt
      3ft

    • Thursday Night

      Thursday Night:WNW wind around 20 kt. Partly cloudy. Waves 2 to 3 ft.

      Low: 32 °F

      WNW 20kt
      2-3ft

    • Friday

      Friday:WNW wind 10 to 15 kt. Mostly sunny. Waves 1 to 2 ft.

      High: 39 °F

      WNW 15kt
      1-2ft

    • Friday Night

      Friday Night:W wind 10 to 13 kt becoming SW 12 to 15 kt after midnight. A chance of snow.   Waves 1 to 2 ft.

      Low: 35 °F

      ⇑SW 15kt
      1-2ft

    • Saturday

      Saturday:WSW wind around 20 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Waves 3 to 4 ft.

      High: 42 °F

      W 20kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:46 am EST Dec 9, 2025
Forecast Valid: 8am EST Dec 9, 2025-6pm EST Dec 15, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH

Today
NNE wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves around 1 ft.
Tonight
SW wind 15 to 20 kt. Partly cloudy. Waves 1 to 2 ft.
Wednesday
SSW wind 20 to 25 kt. A chance of rain, mainly after 1pm. Waves around 3 ft.
Wednesday Night
SW wind around 25 kt becoming W after midnight. A slight chance of rain before 10pm. Waves around 3 ft.
Thursday
WNW wind around 25 kt. Mostly sunny. Waves around 3 ft.
Thursday Night
WNW wind around 20 kt. Partly cloudy. Waves 2 to 3 ft.
Friday
WNW wind 10 to 15 kt. Mostly sunny. Waves 1 to 2 ft.
Friday Night
W wind 10 to 13 kt becoming SW 12 to 15 kt after midnight. A chance of snow. Waves 1 to 2 ft.
Saturday
WSW wind around 20 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Waves 3 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: 39.1°N 75.23°W
Last Update: 5:46 am EST Dec 9, 2025
Forecast Valid: 8am EST Dec 9, 2025-6pm EST Dec 15, 2025
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