Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EDT 25 June 2016

Today Tonight and Sunday

Strong wind warning in effect.

Wind light increasing to southeast 15 knots this morning and to southeast 20 early this evening. Wind veering to southwest 20 near midnight then to west 20 Sunday evening.

Chance of showers late this afternoon and tonight with a risk of thunderstorms. Chance of showers Sunday late in the day. Fog patches forming early this evening and dissipating near noon Sunday.

Waves

Issued 03:00 AM EDT 25 June 2016
Today Tonight and Sunday Waves less than one half metre building to one near noon and to one and one half metres early this evening. Waves building to 2 near noon Sunday.

Extended Forecast

Issued 03:00 AM EDT 25 June 2016
Monday Wind west 20 knots veering to northwest 25 in the morning.
Tuesday Wind north 20 knots diminishing to light.
Wednesday Wind northwest 15 knots backing to southwest 15.

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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 25 June 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 25 June 2016 Today Tonight and Sunday At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over southern Lake Huron.
By 3:00 a.m. EDT Sunday ridge located on a line northeast-southwest
over eastern New York State.

At 3:00 a.m. EDT today deepening low 1000 mb located over
southwestern North Dakota.
By 3:00 a.m. EDT Sunday deepening low 992 mb located over
northwestern Ontario.

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