Southern Lake Huron
Forecast
Marine Forecast
Issued 06:30 PM EDT 20 April 2021
Tonight and Wednesday.
Wind northwest 10 knots increasing to north 15 this evening then backing to northwest 15 Wednesday afternoon. Wind increasing to northwest 20 Wednesday evening.
Showers or flurries early this evening changing to flurries and ending Wednesday morning.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 20 April 2021
Tonight and Wednesday.
Waves one metre subsiding to one half metre this evening then
building to one near midnight. Waves building to one and one half metres
Wednesday evening.
Extended Forecast
Issued 06:30 PM EDT 20 April 2021
Thursday
Wind northwest 20 knots.
Friday
Wind southwest 15 knots.
Saturday
Wind west 15 knots diminishing to
light.
Ice Forecast*
Issued 12:00 PM EDT 20 April 2021 Today Tonight and Wednesday Ice free.
*Ice Forecast and Warnings also apply to U.S. waters
Stay connected
Weather Conditions
Zoom-in to make a selection

Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Lake Huron
Issued 12:00 PM EDT 20 April 2021 Today Tonight and WednesdayIce Coverage
Ice free.
Ice Forecasts
Northern Lake Michigan
Issued 12:00 PM EDT 20 April 2021 Today Tonight and WednesdayIce Coverage
Ice free.
Ice Forecasts
Southern Lake Michigan
Issued 12:00 PM EDT 20 April 2021 Today Tonight and WednesdayIce Coverage
Ice free.
Ice Forecasts
Green Bay
Issued 12:00 PM EDT 20 April 2021 Today Tonight and WednesdayIce Coverage
Ice free.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 20 April 2021 Tonight and Wednesday At 6:30 p.m. EDT tonight low 999 mb located east of James Bay.By 6:30 p.m. EDT Wednesday departing low 1001 mb located over
northern Quebec.
At 6:30 p.m. EDT tonight ridge located on a line east-west over
central Manitoba.
By 6:30 p.m. EDT Wednesday ridge located on a line
northeast-southwest over northeastern Ontario.
By 6:30 p.m. EDT Wednesday departing low 996 mb located over Maine.
Great Lakes - Lake Erie and Lake Ontario Area
Another Region
What we are doing
Weather Forecasts
Weather Alerts
Weather Resources
- Date modified: