Eastern Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EDT 20 July 2017

Today Tonight and Friday.

Wind southeast 10 knots veering to southwest 10 near noon then becoming light early this evening. Wind light Friday.

Fog patches.

Waves

Issued 10:30 AM EDT 20 July 2017
Today Tonight and Friday. Waves less than one half metre.

Extended Forecast

Issued 03:00 AM EDT 20 July 2017
Saturday Wind light becoming northeast 15 knots in the morning then diminishing to light in the afternoon.
Sunday Wind east 15 knots.
Monday Wind light.

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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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land station Land Station
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 20 July 2017 Today Tonight and Friday At 10:30 a.m. EDT today departing ridge located on a line
northeast-southwest over New York State.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over northwestern Ontario.
By 10:30 a.m. EDT Friday trough located on a line
northeast-southwest over New England.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over North Dakota.
By 10:30 a.m. EDT Friday ridge located on a line northwest-southeast
over Lake Superior.

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