Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from June 18, 08:00 PM EDT until June 19, 08:00 PM EDT

For More Weather Information:

Charleston, SC Local Forecast Office

4NM SSE Hilton Head Island SC

Marine Point Forecast

[NOTICE]

Tonight
SW 13kt
2ft
Thursday
S 14kt
2ft
Thursday Night
⇑SW 19kt
2-3ft

Small Craft Advisory
Juneteenth
WSW 22kt⇓
3-4ft

Small Craft Advisory
Friday Night
WSW 11kt
2ft
Saturday
WNW 8kt
1-2ft
Saturday Night
Light Wind
1ft
Sunday
⇑S 9kt
1-2ft
Sunday Night
SSW 10kt
2ft

Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT Jun 17, 2026
Forecast Valid: 9pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

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

Tonight

SW wind around 13 kt. Mostly cloudy. Seas around 2 ft.

Thursday

SW wind 12 to 14 kt becoming S in the afternoon. Winds could gust as high as 21 kt. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Thursday Night

SW wind 12 to 15 kt increasing to 16 to 19 kt after midnight. A chance of showers and thunderstorms, mainly after 2am. Seas 2 to 3 ft.

Juneteenth

WSW wind 19 to 22 kt decreasing to 16 to 19 kt in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Seas 3 to 4 ft.

Friday Night

WSW wind around 11 kt. A chance of showers and thunderstorms before 2am. Seas around 2 ft.

Saturday

WNW wind 6 to 8 kt becoming ESE in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Seas 1 to 2 ft.

Saturday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Seas around 1 ft.

Sunday

Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Sunday Night

S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 2 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.