Western Lake Superior
Forecast
Marine Forecast
Issued 03:00 AM EDT 19 April 2024
Today Tonight and Saturday.
Wind west 15 knots backing to southwest 20 this morning then increasing to southwest 25 near noon. Wind veering to west 20 early this evening then to northwest 20 late this evening. Wind backing to west 15 near noon Saturday.
Scattered flurries or scattered showers this evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EDT 19 April 2024
Today Tonight and Saturday.
Waves 1 metre building to 2 near noon then subsiding to 1.5 near
midnight. Waves subsiding to 1 Saturday afternoon.
Extended Forecast
Issued 03:00 AM EDT 19 April 2024
Sunday
Wind northwest 20 knots diminishing to light
late in the day.
Monday
Wind light becoming south 15 knots.
Tuesday
Wind south 15 knots increasing to northeast
30.
Ice Forecast*
Issued 12:00 PM EDT 18 April 2024 Today Tonight and Friday Open water except 8 tenths rotten thick lake ice along parts of the
coast in in western Nipigon Bay.
*Ice Forecast and Warnings also apply to U.S. waters
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Weather Conditions
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Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Issued 12:00 PM EDT 18 April 2024 Today Tonight and FridayIce Coverage
Open water except 8 tenths rotten thick lake ice along parts of the
coast in in western Nipigon Bay.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 19 April 2024 Today Tonight and Saturday At 3:00 a.m. EDT today low 1006 mb located over northern Ontario.By 3:00 a.m. EDT Saturday low 998 mb located east of James Bay.
At 3:00 a.m. EDT today trough from low located on a line north-south
over Michigan.
By 3:00 a.m. EDT Saturday trough from low located on a line
north-south over central Quebec.
At 3:00 a.m. EDT today ridge located from Montana to Iowa.
By 3:00 a.m. EDT Saturday ridge located from Montana to Indiana
then to New York State.
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