Western Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EDT 28 April 2017

Today Tonight and Saturday

Wind west 25 knots veering to northwest 20 early this evening then diminishing to northwest 10 Saturday morning. Wind becoming light Saturday evening.

Chance of flurries today.

Waves

Issued 10:30 AM EDT 28 April 2017
Today Tonight and Saturday Waves one and one half metres subsiding to one this evening and to one half metre or less Saturday morning.

Extended Forecast

Issued 03:00 AM EDT 28 April 2017
Sunday Wind northeast 15 knots.
Monday Wind northeast 15 knots increasing to northeast 25.
Tuesday Wind northeast 25 knots diminishing to northwest 15.

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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 EDT 27 April 2017 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 28 April 2017 Today Tonight and Saturday At 10:30 a.m. EDT today departing trough located on a line
north-south over northern New England.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over western Lake Superior.
By 10:30 a.m. EDT Saturday trough located on a line
northeast-southwest over eastern New York State.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over central Saskatchewan.
By 10:30 a.m. EDT Saturday ridge located on a line
northwest-southeast over Lake of the Woods.

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