Tropical System in the Gulf; Dangerous Heat and Air Quality Concerns; Severe Thunderstorms for Midwest to mid-Atlantic

Tropical system in the Gulf expected to gradually strengthen the next couple of days off the Florida Panhandle and Alabama coasts. Instances of flash flooding will be possible through Thursday along the eastern and central Gulf Coast. Severe thunderstorms will develop and move along a cold front crossing the Upper Midwest, and through the Ohio Valley/Mid-Atlantic on Tuesday. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from July 21, 12:00 PM EDT until July 22, 12:00 AM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

24NM NNE Lewes DE

Marine Point Forecast

[NOTICE]

This Afternoon
High: 83 °F
SE 10kt
< 1ft
Tonight
Low: 72 °F
SE 10kt
< 1ft
Tuesday
High: 84 °F
⇑S 15kt
< 1ft
Tuesday Night
Low: 73 °F
W 15kt⇓
1ft
Wednesday
High: 84 °F
WSW 15kt
1ft
Wednesday Night
Low: 66 °F
Light Wind
1ft
Thursday
High: 80 °F
NNE 10kt
< 1ft
Thursday Night
Low: 66 °F
Light Wind
< 1ft
Friday
High: 80 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:08 am EDT Jul 20, 2026
Forecast Valid: 1pm EDT Jul 20, 2026-6pm EDT Jul 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH

This Afternoon

SE wind 5 to 10 kt. Sunny. Waves 1 ft or less.

Tonight

SE wind 5 to 10 kt. A chance of showers, mainly after 5am. Waves 1 ft or less.

Tuesday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Waves 1 ft or less.

Tuesday Night

W wind 12 to 15 kt becoming WSW 10 to 13 kt after midnight. Winds could gust as high as 25 kt. Showers and possibly a thunderstorm. Waves around 1 ft.

Wednesday

WSW wind 10 to 15 kt. Showers likely and possibly a thunderstorm. Waves around 1 ft.

Wednesday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Waves around 1 ft.

Thursday

NNE wind 5 to 10 kt becoming ENE in the afternoon. Mostly sunny. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Friday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

*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.