Severe Thunderstorm and Heavy Rain Threat Along the East Coast

Severe thunderstorms capable of widespread damaging winds and a few tornadoes will shift across the Mid-Atlantic and Southeast states today and tonight. Heavy rainfall and a risk of flash flooding is also present as tropical moisture streams north along the East Coast. The highest threat exists from the Carolinas into New England.
Read More...

En Español

Hazardous Weather Conditions

Small Craft Advisory until April 20, 05:00 PM EDT

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Late
Afternoon
S 23kt
< 1ft

Small Craft Advisory
Tonight

S 20kt
< 1ft

Small Craft Advisory
Saturday

SW 18kt
< 1ft

Small Craft Advisory
Saturday
Night
WSW 13kt
< 1ft
Sunday

W 10kt
< 1ft
Sunday
Night
W 6kt
< 1ft
Monday

SE 6kt
< 1ft
Monday
Night
SSE 6kt
< 1ft
Tuesday

S 6kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 4:42 pm EDT Apr 19, 2019
Forecast Valid: 5pm EDT Apr 19, 2019-6pm EDT Apr 26, 2019

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

Synopsis: AMZ300-200815- 442 PM EDT Fri Apr 19 2019 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A strong cold front will move offshore early tonight. Low pressure over the Ohio Valley will prevail Saturday, followed by high pressure Sunday through Wednesday or Thursday. The next cold front may approach late next week. $$

Late Afternoon

S wind around 23 kt, with gusts as high as 30 kt. Showers and thunderstorms. Seas 1 ft or less.

Tonight

S wind 15 to 20 kt becoming WSW after midnight. Winds could gust as high as 27 kt. Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and midnight. Seas 1 ft or less.

Saturday

SW wind 14 to 18 kt, with gusts as high as 25 kt. Sunny. Seas 1 ft or less.

Saturday Night

WSW wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.

Sunday

W wind 8 to 10 kt. Sunny. Seas 1 ft or less.

Sunday Night

W wind around 6 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Clear. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 71 degrees.

*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.