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Western Lake Superior

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 20 April 2024

Today Tonight and Sunday.

Wind northwest 25 knots diminishing to west 15 near noon then veering to northwest 15 overnight. Wind diminishing to variable 10 Sunday afternoon.

Scattered flurries Sunday morning.

Waves

Issued 03:00 AM EDT 20 April 2024
Today Tonight and Sunday. Waves 1.5 metres subsiding to 1 near midnight and to 0.5 Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 20 April 2024
Monday Wind light increasing to southeast 15 knots in the morning and to southeast 20 in the afternoon.
Tuesday Wind south 20 knots becoming north 20.
Wednesday Wind northeast 25 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 19 April 2024 Today Tonight and Saturday Open water except 7 tenths rotten thick lake ice in extreme western 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 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 EDT 19 April 2024 Today Tonight and Saturday

Ice Coverage

Open water except 7 tenths rotten thick lake ice in extreme western
Nipigon Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 20 April 2024 Today Tonight and Sunday At 3:00 a.m. EDT today departing low 993 mb located over northern
Quebec.

At 3:00 a.m. EDT today ridge located from Montana to Ohio.
By 3:00 a.m. EDT Sunday ridge located from Iowa to New York State.

By 3:00 a.m. EDT Sunday trough located on a line east-west over
northern Ontario.

Great Lakes - Lake Superior Area

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