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North Channel

Warnings

Forecast

Marine Forecast

Issued 11:30 AM EDT 12 July 2025

Today Tonight and Sunday.

Wind south 15 knots veering to west 15 this evening then diminishing to west 10 early Sunday morning. Wind backing to southwest 10 Sunday evening.

Showers ending near midnight with a risk of thunderstorms. Fog patches forming overnight and dissipating Sunday morning.

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Map of Great Lakes - Lake Superior marine weather areas Pukaskwa National Park Marathon Airport Caribou Island Armstrong Airport Royal Island Kenora Airport Thunder Bay Airport Welcome Island Lake Of the Woods - 45148 Little Flatland Island Sault Ste. Marie Airport Wawa Airport Slate Island - 45136
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Squall warning in effect

North Channel

Issued 11:09 AM EDT 12 July 2025 Squalls with wind gusts up to 35 knots, frequent lightning and poor to very poor visibility in thunderstorms heavy at times are expected or occurring in the area.

Thunderstorms are tracking from the southwest at 25 knots.

Proceed with caution as visibility may suddenly be reduced to near zero. Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

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