Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from December 9, 06:00 PM EST until December 10, 06:00 AM EST
Gale Watch in effect from December 10, 06:00 AM EST until December 10, 10:00 PM EST

For More Weather Information:

Philadelphia, PA Local Forecast Office

14NM ENE Lewes DE

Marine Point Forecast

[NOTICE]

Today
High: 42 °F
NNE 10kt⇓
3-4ft
Tonight
Low: 38 °F
⇑SW 20kt
3-4ft

Small Craft Advisory
Wednesday
High: 49 °F
SSW 25kt
6ft
Wednesday Night
Low: 37 °F
W 25kt
6ft
Thursday
High: 42 °F
WNW 25kt
4ft
Thursday Night
Low: 33 °F
WNW 25kt
2-3ft
Friday
High: 41 °F
W 15kt
2ft
Friday Night
Low: 36 °F
WSW 15kt
2-3ft
Saturday
High: 44 °F
W 25kt
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: 7am EST Dec 9, 2025-6pm EST Dec 15, 2025

View Nearby Observations

Detailed Forecast

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

Today

NNE wind 7 to 10 kt becoming ESE 5 to 8 kt in the afternoon. Increasing clouds. Seas 3 to 4 ft.

Tonight

SW wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Partly cloudy. Seas 3 to 4 ft.

Wednesday

SSW wind 20 to 25 kt, with gusts as high as 35 kt. A chance of rain after 1pm. Seas 4 ft building to 6 ft.

Wednesday Night

SW wind 20 to 25 kt becoming W after midnight. Winds could gust as high as 30 kt. A slight chance of rain before 10pm. Seas 6 ft subsiding to 4 ft.

Thursday

WNW wind 20 to 25 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 4 ft.

Thursday Night

WNW wind 20 to 25 kt. Partly cloudy. Seas 2 to 3 ft.

Friday

W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 2 ft.

Friday Night

W wind 10 to 15 kt becoming SW after midnight. Winds could gust as high as 20 kt. A chance of rain and snow before 1am. Seas 2 to 3 ft.

Saturday

WSW wind 20 to 25 kt becoming WNW in the afternoon. Partly sunny. Seas 3 to 4 ft.

*Notices:

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.
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.