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Eastern Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EST 05 December 2019

Today Tonight and Friday.

Wind north 10 knots becoming light early this evening then increasing to northwest 20 near midnight. Wind increasing to northwest 25 early Friday morning then diminishing to northwest 15 near noon Friday.

Flurries. Visibility 1 mile or less in flurries.

Risk of freezing spray Friday morning and afternoon.

Waves

Issued 10:30 AM EST 05 December 2019
Today Tonight and Friday. Waves one half metre or less building to one late overnight and to 2 Friday morning. Waves subsiding to one half metre Friday afternoon.

Extended Forecast

Issued 03:00 AM EST 05 December 2019
Saturday Wind southwest 15 knots increasing to southwest 20 in the morning.
Sunday Wind southwest 30 knots becoming north 30.
Monday Wind northeast 25 knots.

Ice Forecast*

Issued 12:00 PM EST 5 December 2019 Today Tonight and Friday Open water except 2 tenths new lake ice along parts of the shore.

*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 Kenora Airport 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
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 5 December 2019 Today Tonight and Friday

Ice Coverage

Open water except 2 tenths new lake ice along parts of the shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 5 December 2019 Today Tonight and Friday At 10:30 a.m. EST today ridge located on a line north-south over
western Lake Superior.
By 10:30 a.m. EST Friday ridge located on a line northeast-southwest
over Maine.

At 10:30 a.m. EST today low 1006 mb located over eastern North
Dakota.
By 10:30 a.m. EST Friday low 1012 mb located south of Lake Ontario.

At 10:30 a.m. EST today ridge located on a line northeast-southwest
over Saskatchewan.
By 10:30 a.m. EST Friday ridge located on a line northeast-southwest
over northwestern Ontario.

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