Severe Thunderstorm and Tropical Storm Bertha Impacts

Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

17NM S Seattle WA

Marine Point Forecast

[NOTICE]

Today
Light Wind
< 1ft
Tonight
N 6kt⇓
< 1ft
Wednesday
Light Wind
< 1ft
Wednesday Night
N 6kt⇓
< 1ft
Thursday
⇑WSW 9kt
< 1ft
Thursday Night
SSW 11kt
1ft
Friday
SW 7kt
< 1ft
Friday Night
SSW 7kt
< 1ft
Saturday
SW 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 3:40 am PDT Jul 21, 2026
Forecast Valid: 10am PDT Jul 21, 2026-6pm PDT Jul 27, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

N wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Wednesday

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

Wednesday Night

N wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming WSW 5 to 9 kt in the morning. A chance of showers before 11am. Waves 1 ft or less.

Thursday Night

SSW wind 9 to 11 kt. Mostly clear. Waves around 1 ft.

Friday

SW wind 5 to 7 kt. Mostly sunny. Waves 1 ft or less.

Friday Night

SSW wind around 7 kt. Mostly clear. Waves 1 ft or less.

Saturday

SW wind 5 to 7 kt. Partly 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.