Marine Weather for LS 240

Active Advisory: (US Severe Weather)
Forecast as of 2:40 PM CST on December 11, 2017/
Gale Warning in effect until 1 am EST /midnight CST/ Tuesday
Small Craft Advisory in effect from 1 am EST /midnight CST/ Tuesday through Tuesday afternoon
Saxon Harbor Wi To Black River Mi-
Black River To Ontonagon Mi-
Rest Of Today
Northwest wind up to 30 knots with gale force gusts up to 38 knots. Cloudy with scattered snow showers. Freezing spray. Waves 2 to 3 feet building to 6 to 9 feet occasionally to 11 feet.
Tonight
North wind up to 30 knots with gale force gusts up to 38 knots. Cloudy with scattered snow showers. Freezing spray. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 4 to 7 feet occasionally to 9 feet.
Tuesday
Northwest wind 10 to 20 knots. Mostly cloudy. Freezing spray in the morning. Scattered snow showers in the morning, then isolated snow showers in the afternoon. Waves subsiding to 2 to 3 feet.
Tuesday Night
Northwest wind less than 10 knots backing southwest after midnight. Mostly cloudy with a chance of snow showers. Waves subsiding to 1 to 2 feet.

Watches & Warnings

Gale Warning, Small Craft Advisory
Issued: 1:31 PM CST Dec. 11, 2017 – National Weather Service

... Gale Warning remains in effect until 1 am EST /midnight CST/
Tuesday...
... Small Craft Advisory in effect from 1 am EST /midnight CST/ to
4 PM EST /3 PM CST/ Tuesday...

The National Weather Service in Marquette has issued a Small
Craft Advisory... which is in effect from 1 am EST /midnight CST/
to 4 PM EST /3 PM CST/ Tuesday.

* Wind and waves during the small craft advisory: expect
sustained winds of up to 26 knots from the north... with gusts
up to 34 knots. The largest expected significant waves will be
10 feet with a maximum wave height of up to 14 feet possible.

* Timing... the maximum winds are expected around 1 am EST
Tuesday with the largest waves expected around 1 am EST
Tuesday.

A Gale Warning remains in effect until 1 am EST /midnight CST/
Tuesday.

* Wind and waves during the gale warning: expect sustained winds
of up to 29 knots from the north... with gusts up to 39 knots.
The largest expected significant waves will be 11 feet with a
maximum wave height of up to 16 feet possible.

* Timing... the maximum winds are expected around 6 PM EST Monday
with the largest waves expected around 10 PM EST Monday.

Please see the latest marine forecasts for more detailed
information.

Precautionary/preparedness actions...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
Harbor prior to the onset of gale conditions.

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners... especially those operating smaller
vessels should avoid navigating in these conditions.






Marine Weather

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Coastal Water Temperatures

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Open Sea Buoy Information

Place ID Sea Temp Wave Height
WEST SUPERIOR 30NM NE of Outer Island, WI 45006 41 °F 0.33 ft
Click the Station ID for daily observations and history.

C-MAN Station Information

Place ID Water Temp Wave Height
Devils Island, WI DISW3
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Rock of Ages, MI ROAM4
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