Western Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EDT 30 June 2015

Today Tonight and Wednesday

Wind north 15 knots diminishing to north 10 near noon then becoming light early this evening.

Chance of showers Wednesday late in the day.

Waves

Issued 10:30 AM EDT 30 June 2015
Today Tonight and Wednesday Waves one metre subsiding to less than one half metre this afternoon.

Extended Forecast

Issued 03:00 AM EDT 30 June 2015
Thursday Wind light.
Friday Wind light.
Saturday Wind light.

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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 1 June 2015 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 30 June 2015 Today Tonight and Wednesday At 10:30 a.m. EDT today trough located on a line northeast-southwest
over Whitefish Bay.
By 10:30 a.m. EDT Wednesday trough located on a line
northeast-southwest over southern Ontario.

At 10:30 a.m. EDT today low 1008 mb located over southern Lake
Michigan.
By 10:30 a.m. EDT Wednesday low 1007 mb located north of Ottawa.

At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over northwestern Ontario.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over Lake Superior.

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