Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EST 18 December 2014

Tonight and Friday

Wind light becoming south 10 knots Friday evening.

Waves

Issued 06:30 PM EST 18 December 2014
Tonight and Friday Waves less than one half metre.

Extended Forecast

Issued 06:30 PM EST 18 December 2014
Saturday Wind light.
Sunday Wind light becoming south 15 knots.
Monday Wind south 15 knots increasing to south 20.

Ice Forecast*

Issued 12:00 PM EST 18 December 2014 Today Tonight and Friday Open water except 9 tenths of medium lake ice in Black Bay and Nipigon Bay. 9 tenths of thin lake ice including 2 tenths of medium lake ice in Chequamegon Bay. 1 tenth of new lake ice in Thunder Bay.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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Weather Conditions

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Map of Great Lakes - Lake Superior marine weather areas Mid Superior - 45001 East Superior - 45004 West Superior - 45006 Slate Island - 45136 Lake Of the Woods - 45148 Royal Island Armstrong Cameron Falls Caribou Island Geraldton Airport Marathon Airport Pukaskwa National Park Thunder Bay Airport Welcome Island Little Flatland Island Sault Ste. Marie Airport Wawa Airport Kenora Airport
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Ice Conditions

Ice Forecasts

Issued 12:00 PM EST 18 December 2014 Today Tonight and Friday

Ice Coverage

Open water except 9 tenths of medium lake ice in Black Bay and Nipigon Bay. 9 tenths of thin lake ice including 2 tenths of medium lake ice in Chequamegon Bay. 1 tenth of new lake ice in Thunder Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 18 December 2014 Tonight and Friday At 6:30 p.m. EST tonight dissipating trough located on a line
east-west over Lake St. Clair.

At 6:30 p.m. EST tonight ridge located from Hudson Bay to Wisconsin
then to Kentucky.
By 6:30 p.m. EST Friday ridge located on a line northeast-southwest
over Whitefish Bay.

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