Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from August 1, 05:00 AM PDT until August 1, 07:00 PM PDT

For More Weather Information:

Seattle, WA Local Forecast Office

21NM S Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
⇑S 7kt
< 1ft
Saturday
SSW 19kt
< 1ft

Small Craft Advisory
Saturday Night
SSW 12kt
< 1ft
Sunday
Light Wind
< 1ft
Sunday Night
N 7kt⇓
< 1ft
Monday
⇑N 8kt
< 1ft
Monday Night
N 8kt⇓
< 1ft
Tuesday
⇑N 7kt
< 1ft
Tuesday Night
N 7kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Jul 31, 2026
Forecast Valid: 8pm PDT Jul 31, 2026-6pm PDT Aug 7, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH

Tonight

Variable winds less than 5 kt becoming S 5 to 7 kt in the evening. Increasing clouds. Waves 1 ft or less.

Saturday

SSW wind 11 to 19 kt. A chance of rain, mainly between 11am and 2pm. Waves 1 ft or less.

Saturday Night

SSW wind 5 to 12 kt, with gusts as high as 20 kt. Increasing clouds. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. Cloudy, then gradually becoming mostly sunny. Waves 1 ft or less.

Sunday Night

N wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Monday

Variable winds less than 5 kt becoming N 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

Monday Night

N wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming N 5 to 7 kt in the afternoon. Sunny. Waves 1 ft or less.

Tuesday Night

N wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. 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.