Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 20 January 2017

Today Tonight and Saturday

Wind south 10 knots becoming light early this morning then becoming southeast 10 Saturday morning. Wind increasing to southeast 15 near noon Saturday then backing to east 20 Saturday evening.

A few showers beginning early this evening changing to chance of drizzle Saturday. Fog patches forming Saturday morning.

Waves

Issued 03:00 AM EST 20 January 2017
Today Tonight and Saturday Waves one half metre or less building to one Saturday afternoon.

Extended Forecast

Issued 03:00 AM EST 20 January 2017
Sunday Wind southeast 15 knots.
Monday Wind southeast 15 knots.
Tuesday Wind light.

Ice Forecast*

Issued 12:00 PM EST 19 January 2017 Today Tonight and Friday Open water except 7 tenths of thin lake ice along parts of the shore. Consolidated medium lake ice including 2 tenths of thick lake ice in Black Bay, Chequamegon Bay, and Nipigon Bay.

*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 19 January 2017 Today Tonight and Friday

Ice Coverage

Open water except 7 tenths of thin lake ice along parts of the
shore. Consolidated medium lake ice including 2 tenths of thick lake
ice in Black Bay, Chequamegon Bay, and Nipigon Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 20 January 2017 Today Tonight and Saturday At 3:00 a.m. EST today departing ridge located on a line north-south
over eastern Ontario.

At 3:00 a.m. EST today trough located on a line east-west over
Indiana.
By 3:00 a.m. EST Saturday weakening trough located on a line
east-west over western Lake Ontario.

By 3:00 a.m. EST Saturday low 994 mb located near Iowa.

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