Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 18 January 2018

Today Tonight and Friday.

Wind northwest 15 knots diminishing to light this morning then increasing to southwest 15 overnight. Wind increasing to southwest 20 Friday morning then veering to west 20 Friday evening.

Chance of flurries beginning this morning changing to chance of showers Friday morning and afternoon.

Waves

Issued 03:00 AM EST 18 January 2018
Today Tonight and Friday. Over open water waves one metre subsiding to less than one half metre near noon then building to one Friday morning.

Extended Forecast

Issued 03:00 AM EST 18 January 2018
Saturday Wind west 15 knots diminishing to light in the afternoon.
Sunday Wind light increasing to northeast 25 knots late in the day.
Monday Wind northeast 25 knots increasing to northeast 35 late in the day.

Ice Forecast*

Issued 12:00 PM EST 17 January 2018 Today Tonight and Thursday Open water except 9 tenths thin lake ice including 2 tenths medium lake ice along parts of the shore. Consolidated thick lake ice in Black Bay, Nipigon Bay, Thunder Bay and Chequamegon Bay.

*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 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 Kenora Airport
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 17 January 2018 Today Tonight and Thursday

Ice Coverage

Open water except 9 tenths thin lake ice including 2 tenths medium
lake ice along parts of the shore. Consolidated thick lake ice in
Black Bay, Nipigon Bay, Thunder Bay and Chequamegon Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 18 January 2018 Today Tonight and Friday At 3:00 a.m. EST today low 1004 mb located over southeastern
Manitoba.
By 3:00 a.m. EST Friday weakening low 1008 mb located east of
Lake Superior.

At 3:00 a.m. EST today quasi-stationary ridge located from New
York State to Tennessee.

At 3:00 a.m. EST Friday low 990 mb located over northeastern
Alberta.

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