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Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 21 January 2020

Today Tonight and Wednesday.

Gale warning in effect.

Wind west 30 knots increasing to southwest 35 near noon then diminishing to southwest 30 early this evening. Wind diminishing to southwest 15 Wednesday evening.

Flurries overnight and Wednesday with a risk of freezing drizzle.

Risk of freezing spray today.

Waves

Issued 03:00 AM EST 21 January 2020
Today Tonight and Wednesday. Waves 3 metres subsiding to 2 Wednesday morning and to one Wednesday evening.

Extended Forecast

Issued 03:00 AM EST 21 January 2020
Thursday Wind southwest 15 knots increasing to northeast 20 in the morning.
Friday Wind east 15 knots.
Saturday Wind light.

Ice Forecast*

Issued 12:00 PM EST 20 January 2020 Today Tonight and Tuesday Open water except 8 tenths new lake ice including 3 tenths thin lake ice along parts of the shore. Consolidated thick lake ice in some northern bays.

*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 20 January 2020 Today Tonight and Tuesday

Ice Coverage

Open water except 8 tenths new lake ice including 3 tenths thin lake
ice along parts of the shore. Consolidated thick lake ice in some
northern bays.

Warnings

Warnings (In effect)

Gale warning in effect

Western Lake Superior

Issued 03:00 AM EST 21 January 2020

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 3:00 AM EST 21 January 2020 Today Tonight and Wednesday At 3:00 a.m. EST today high 1042 mb located over Iowa.
By 3:00 a.m. EST Wednesday high 1035 mb located over West Virginia.

By 3:00 a.m. EST Wednesday approaching trough located on a line
northeast-southwest over the Ontario - Manitoba border.

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