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Western Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EST 05 December 2019

Today Tonight and Friday.

Wind light increasing to northwest 15 knots this evening and to northwest 25 late overnight. Wind diminishing to northwest 15 Friday morning and to northwest 10 Friday afternoon. Wind backing to west 10 Friday evening.

Flurries this afternoon and tonight. Visibility as low as 1 mile in flurries.

Risk of freezing spray Friday morning.

Waves

Issued 10:30 AM EST 05 December 2019
Today Tonight and Friday. Waves one half metre or less building to one and one half metres early Friday morning then subsiding to one half metre near noon Friday.

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 and 9 plus tenths thin lake ice in northern Black 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 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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land station Land Station
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 and
9 plus tenths thin lake ice in northern Black Bay.

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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