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Western Lake Superior

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 20 November 2024

Tonight and Thursday.

Strong wind warning in effect.

Wind northwest 15 knots increasing to northwest 20 this evening then veering to north 25 late overnight. Wind north 20 Thursday.

Scattered showers.

Waves

Issued 06:30 PM EST 20 November 2024
Tonight and Thursday. Waves 0.5 to 1 metre building to 1.5 near midnight and to 2 early Thursday morning. Waves subsiding to 1.5 Thursday afternoon.

Extended Forecast

Issued 06:30 PM EST 20 November 2024
Friday Wind north 20 knots.
Saturday Wind northwest 15 knots diminishing to light.
Sunday Wind light becoming east 15 knots.

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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 27 April 2024 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Western Lake Superior

Issued 01:13 AM EST 21 November 2024

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 20 November 2024 Tonight and Thursday At 6:30 p.m. EST tonight departing ridge located on a line
north-south over Maine.

At 6:30 p.m. EST tonight trough located from Lake of the Woods to
Sault Ste. Marie then to Erie.
By 6:30 p.m. EST Thursday deepening trough from 1002 mb low located
from Chicago to Lake Huron then to Lake Ontario.

By 6:30 p.m. EST Thursday approaching ridge located on a line
northwest-southeast over South Dakota.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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