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 until August 1, 10:00 PM PDT

For More Weather Information:

Seattle, WA Local Forecast Office

4NM NW Seattle WA

Marine Point Forecast

[NOTICE]

Late Afternoon
NNW 17kt
< 1ft

Small Craft Advisory
Tonight
N 12kt
< 1ft

Small Craft Advisory
Sunday
⇑N 11kt
< 1ft
Sunday Night
NNE 12kt
< 1ft
Monday
N 15kt
< 1ft
Monday Night
N 15kt
< 1ft
Tuesday
N 14kt
< 1ft
Tuesday Night
N 14kt⇓
< 1ft
Wednesday
⇑N 10kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Aug 1, 2026
Forecast Valid: 5pm PDT Aug 1, 2026-6pm PDT Aug 8, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM PDT THIS EVENING...

Late Afternoon

NNW wind around 17 kt. A slight chance of rain. Waves 1 ft or less.

Tonight

N wind 6 to 12 kt becoming S after midnight. A slight chance of rain after 2am. Waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming N 6 to 11 kt in the afternoon. A slight chance of rain between 7am and 9am. Waves 1 ft or less.

Sunday Night

NNE wind 5 to 12 kt. Mostly clear. Waves 1 ft or less.

Monday

N wind 5 to 15 kt. Sunny. Waves 1 ft or less.

Monday Night

N wind 8 to 15 kt. Clear. Waves 1 ft or less.

Tuesday

N wind 7 to 14 kt. Sunny. Waves 1 ft or less.

Tuesday Night

N wind 9 to 14 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming N 5 to 10 kt in the afternoon. 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.