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, 06:00 PM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

7NM SSE Lewes DE

Marine Point Forecast

[NOTICE]

This Afternoon
High: 80 °F
E 10kt
1ft
Tonight
Low: 73 °F
SE 10kt
1ft
Tuesday
High: 83 °F
⇑S 15kt
1ft
Tuesday Night
Low: 74 °F
SW 15kt
1ft
Wednesday
High: 83 °F
SW 15kt
1ft
Wednesday Night
Low: 68 °F
N 10kt
1ft
Thursday
High: 75 °F
NE 10kt
1ft
Thursday Night
Low: 68 °F
Light Wind
< 1ft
Friday
High: 79 °F
ENE 10kt
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

E wind 5 to 10 kt. Sunny. Seas around 1 ft.

Tonight

SE wind around 10 kt. A slight chance of showers after 4am. Seas around 1 ft.

Tuesday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Seas around 1 ft.

Tuesday Night

SW wind around 15 kt, with gusts as high as 20 kt. Showers and possibly a thunderstorm. Seas around 1 ft.

Wednesday

SW wind 10 to 15 kt. Showers and possibly a thunderstorm. Seas around 1 ft.

Wednesday Night

W wind 5 to 10 kt becoming N after midnight. A chance of showers and thunderstorms. Seas around 1 ft.

Thursday

NE wind around 10 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

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

Friday

ENE wind around 10 kt. 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.