Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EDT 06 May 2016

Today Tonight and Saturday

Strong wind warning in effect.

Wind southeast 10 knots increasing to south 15 this morning then diminishing to variable 10 early this evening. Wind increasing to northwest 20 late this evening then diminishing to northwest 15 overnight. Wind diminishing to northwest 10 Saturday morning then backing to southwest 10 Saturday afternoon. Wind veering to west 10 Saturday evening.

Showers beginning early this evening and ending near midnight with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 06 May 2016
Today Tonight and Saturday Waves one half metre building to one this morning and to one and one half metres near midnight. Waves subsiding to one half metre near noon Saturday.

Extended Forecast

Issued 03:00 AM EDT 06 May 2016
Sunday Wind light.
Monday Wind light.
Tuesday Wind east 15 knots diminishing to light late in the day.

Ice Forecast*

Issued 12:00 PM EDT 5 May 2016 Today Tonight and Friday Open water except 1 tenth of rotten thick lake ice in a few bays along the north shore.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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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 5 May 2016 Today Tonight and Friday

Ice Coverage

Open water except 1 tenth of rotten thick lake ice in a few bays
along the north shore.

Warnings

Warnings (In effect)

Strong wind warning in effect

Western Lake Superior

Issued 03:00 AM EDT 06 May 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 6 May 2016 Today Tonight and Saturday At 3:00 a.m. EDT today deepening low 1001 mb located over the
Ontario - Manitoba border.
By 3:00 a.m. EDT Saturday low 992 mb located over eastern James Bay.

By 3:00 a.m. EDT Saturday approaching cold front from 992 mb low
located from Whitefish Bay to Lower Michigan.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over northern Lake Huron.
By 3:00 a.m. EDT Saturday departing ridge located over southern
Ontario.

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