Marine Forecast
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Wind southeast 10 knots veering to southwest 10 near midnight
then becoming north 10 Sunday morning. Wind increasing to north 15 Sunday
afternoon and to north 20 Sunday evening.
Periods of rain Sunday late in the day.
Strong wind warning program has ended for the season.
Winds
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Wind southeast 10 knots veering to southwest 10 near midnight
then becoming north 10 Sunday morning. Wind increasing to north 15 Sunday
afternoon and to north 20 Sunday evening.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Waves 0.5 metres or less building to 1 Sunday
evening.
Weather & Visibility
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Periods of rain Sunday late in the day.
Ice ForecastsIssued 12:00 PM EDT 21 March 2026 Today Tonight and Sunday
Ice Coverage
Open water except 1 tenth new lake ice in the northeastern section.
No watches or warnings in effect.
Technical Marine SynopsisIssued 6:30 PM EDT 21 March 2026 Tonight and Sunday At 6:30 p.m. EDT tonight low 1000 mb located over northern Wisconsin. By 6:30 p.m. EDT Sunday trough from 1003 mb low located on a line east-west over Pennsylvania.
By 6:30 p.m. EDT Sunday approaching ridge located on a line northeast-southwest over Lake Nipigon.
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