Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EDT 28 September 2016

Today Tonight and Thursday

Strong wind warning in effect.

Wind northeast 20 knots diminishing to northeast 15 this afternoon and to northeast 10 near midnight.

Chance of showers this morning.

Waves

Issued 03:00 AM EDT 28 September 2016
Today Tonight and Thursday Waves one and one half metres subsiding to one early this evening and to one half metre overnight.

Extended Forecast

Issued 03:00 AM EDT 28 September 2016
Friday Wind northeast 15 knots.
Saturday Wind northeast 20 knots.
Sunday Wind northeast 15 knots.

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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 7 May 2016 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Western Lake Superior

Issued 03:00 AM EDT 28 September 2016

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 28 September 2016 Today Tonight and Thursday At 3:00 a.m. EDT today low 1007 mb located over northern Lake
Michigan.
By 3:00 a.m. EDT Thursday low 1013 mb located over Ohio.

At 3:00 a.m. EDT today ridge located on a line north-south over
Manitoba.
By 3:00 a.m. EDT Thursday ridge located on a line east-west over
northern Ontario.

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