Western Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EDT 28 May 2017

Today Tonight and Monday.

Wind light becoming south 10 knots near noon then becoming light this evening. Wind becoming southwest 10 near noon Monday then increasing to west 15 Monday evening.

Chance of showers today and Monday. Risk of thunderstorms today and tonight. Fog patches dissipating near noon Monday.

Waves

Issued 10:30 AM EDT 28 May 2017
Today Tonight and Monday. Waves one half metre.

Extended Forecast

Issued 03:00 AM EDT 28 May 2017
Tuesday Wind southwest 15 knots veering to west 20 in the morning.
Wednesday Wind northwest 15 knots.
Thursday Wind west 15 knots backing to south 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 May 2017 Today Tonight and Monday At 10:30 a.m. EDT today departing ridge located on a line
north-south over New Brunswick.

At 10:30 a.m. EDT today low 1002 mb located east of Lake of
the Woods.
By 10:30 a.m. EDT Monday low 1002 mb located over Lake Nipigon.

At 10:30 a.m. EDT today low 1006 mb located over western Indiana.
By 10:30 a.m. EDT Monday low 1001 mb located over eastern Ontario.

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