Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EST 14 December 2017

Tonight and Friday.

Wind northwest 15 knots veering to north 15 this evening then increasing to north 20 late overnight. Wind diminishing to north 15 Friday evening.

Flurries beginning this evening. Visibility 1 mile or less in flurries.

Waves

Issued 06:30 PM EST 14 December 2017
Tonight and Friday. Waves one half metre or less building to one and one half metres near midnight.

Extended Forecast

Issued 06:30 PM EST 14 December 2017
Saturday Wind north 15 knots diminishing to light in the morning then becoming south 15 late in the day.
Sunday Wind south 20 knots veering to west 15 late in the day.
Monday Wind west 15 knots increasing to southwest 25.

Ice Forecast*

Issued 12:00 PM EST 14 December 2017 Today Tonight and Friday Open water except 9 plus tenths medium lake ice in Black Bay. 9 plus tenths thin lake ice including 3 tenths medium lake ice in western Nipigon Bay. Elsewhere 8 tenths thin lake ice along parts of the shore.

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

 

[ Canadian Ice Service ]

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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 Airport Caribou Island 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 Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EST 14 December 2017 Today Tonight and Friday

Ice Coverage

Open water except 9 plus tenths medium lake ice in Black Bay. 9 plus
tenths thin lake ice including 3 tenths medium lake ice in western
Nipigon Bay. Elsewhere 8 tenths thin lake ice along parts of the
shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 14 December 2017 Tonight and Friday At 6:30 p.m. EST tonight quasi-stationary ridge located on a line
northwest-southeast over northwestern Ontario.

At 6:30 p.m. EST tonight low 1013 mb located over Lake Superior.
By 6:30 p.m. EST Friday low 1002 mb located over Georgian Bay.

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