Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

For More Weather Information:

Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 20 °F
N 20kt
6ft

Small Craft Advisory
Christmas Day
High: 28 °F
NNE 20kt
3-5ft

Small Craft Advisory
Thursday Night
Low: 26 °F
SSE 25kt
8ft

Gale Warning
Friday
High: 34 °F
SSE 25kt⇓
7ft

Gale Warning
Friday Night
Low: 31 °F
S 10kt
1-3ft
Saturday
High: 36 °F
S 15kt
1-2ft
Saturday Night
Low: 32 °F
SSE 15kt
2ft
Sunday
High: 35 °F
⇑WNW 25kt
8ft
Sunday Night
Low: 17 °F
⇑NW 40kt
18ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:18 pm CST Dec 24, 2025
Forecast Valid: 8pm CST Dec 24, 2025-6pm CST Dec 31, 2025

View Nearby Observations

Detailed Forecast

Tonight

NW wind 15 to 20 kt becoming NNE after midnight. Widespread freezing spray after 3am. Mostly cloudy. Waves 2 ft building to 6 ft.

Christmas Day

NNE wind 15 to 20 kt becoming ESE in the afternoon. A chance of snow showers after noon. Widespread freezing spray before 10am. Waves 3 to 5 ft.

Thursday Night

SSE wind 20 to 25 kt, with gusts as high as 40 kt. Snow showers. The snow could be heavy at times. Waves 4 ft building to 8 ft.

Friday

SSE wind 20 to 25 kt decreasing to 10 to 15 kt in the afternoon. Winds could gust as high as 35 kt. Snow showers likely before noon. Waves 7 ft subsiding to 3 ft.

Friday Night

S wind 5 to 10 kt, with gusts as high as 15 kt. Cloudy. Waves 1 to 3 ft.

Saturday

S wind 10 to 15 kt, with gusts as high as 25 kt. Cloudy. Waves 1 to 2 ft.

Saturday Night

SSE wind around 15 kt, with gusts as high as 20 kt. A chance of rain showers before midnight, then a chance of rain and snow showers. Waves around 2 ft.

Sunday

SSW wind 15 to 20 kt becoming WNW 20 to 25 kt in the afternoon. Winds could gust as high as 45 kt. A chance of rain and snow showers before noon, then snow showers likely. Waves 2 ft building to 8 ft.

Sunday Night

NW wind 30 to 35 kt increasing to 35 to 40 kt after midnight. Winds could gust as high as 60 kt. Snow showers. Widespread freezing spray after 8pm. Waves 9 ft building to 18 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.