Eastern Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 11 December 2018

Today Tonight and Wednesday.

Wind northwest 15 knots veering to north 20 early this morning then diminishing to northeast 10 near noon. Wind increasing to southeast 15 this evening and to southeast 20 Wednesday morning. Wind increasing to southeast 25 Wednesday afternoon.

Flurries ending early this morning. Flurries or showers beginning overnight.

Waves

Issued 03:00 AM EST 11 December 2018
Today Tonight and Wednesday. Waves one metre subsiding to one half metre or less this afternoon then building to one near noon Wednesday. Waves building to 2 Wednesday evening.

Extended Forecast

Issued 03:00 AM EST 11 December 2018
Thursday Wind south 20 knots.
Friday Wind southwest 15 knots.
Saturday Wind southwest 15 knots.

Ice Forecast*

Issued 12:00 PM EST 10 December 2018 Today Tonight and Tuesday Ice free 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 10 December 2018 Today Tonight and Tuesday

Ice Coverage

Ice free except 2 tenths new lake ice along parts of the shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 11 December 2018 Today Tonight and Wednesday At 3:00 a.m. EST today departing ridge located on a line
northeast-southwest over Pennsylvania.

At 3:00 a.m. EST today weakening low 1010 mb located over eastern
Lake Superior.
By 3:00 a.m. EST Wednesday low 1015 mb located over Vermont.

At 3:00 a.m. EST today ridge located on a line northeast-southwest
over Lake of the Woods.
By 3:00 a.m. EST Wednesday ridge located on a line north-south
over Lake Erie.

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