Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from April 13, 04:00 AM EDT until April 14, 01:00 AM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

15NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Today
High: 71 °F
SSW 15kt
1-2ft
Tonight
Low: 56 °F
SW 10kt
1ft
Tuesday
High: 71 °F
Light Wind
1ft
Tuesday Night
Low: 57 °F
SW 10kt
1ft
Wednesday
High: 73 °F
Light Wind
1ft
Wednesday Night
Low: 58 °F
Light Wind
1ft
Thursday
High: 72 °F
⇑S 10kt
1ft
Thursday Night
Low: 58 °F
SW 10kt
1ft
Friday
High: 72 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:11 am EDT Apr 13, 2026
Forecast Valid: 11am EDT Apr 13, 2026-6pm EDT Apr 19, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Today

SSW wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Seas 1 to 2 ft.

Tonight

SW wind 5 to 10 kt. Mostly cloudy, then gradually becoming mostly clear. Seas around 1 ft.

Tuesday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

Tuesday Night

SW wind 5 to 10 kt. Partly cloudy. Seas around 1 ft.

Wednesday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Thursday

SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Partly sunny. Seas around 1 ft.

Thursday Night

SW wind 5 to 10 kt. Mostly cloudy. Seas around 1 ft.

Friday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 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.