Marine Forecast
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Wind southeast 15 knots veering to south 20 near midnight then
becoming north 20 early Sunday morning.
Snow or rain changing to scattered showers this evening and
ending near noon Sunday.
Strong wind warning program has ended for the season.
Winds
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Wind southeast 15 knots veering to south 20 near midnight then
becoming north 20 early Sunday morning.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Over open water waves 1 metre building to 1.5 near
midnight.
Weather & Visibility
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Snow or rain changing to scattered showers this evening and
ending near noon Sunday.
Ice ForecastsNorthern Lake HuronIssued 12:00 PM EDT 21 March 2026 Today Tonight and Sunday
Ice Coverage
1 tenth thick lake ice except 7 tenths thin lake ice including 2 tenths thick lake ice in the northwestern section. 7 tenths thick lake ice along parts of the Bruce Peninsula shore. Consolidated thick lake ice along parts of the shore and near the Straits of Mackinac.
Ice ForecastsNorthern Lake MichiganIssued 12:00 PM EDT 21 March 2026 Today Tonight and Sunday
Ice Coverage
1 tenth thick lake ice except 9 tenths thick lake ice north of and east of Fox Islands. Consolidated thick lake ice in the Straits of Mackinac.
Ice ForecastsSouthern Lake MichiganIssued 12:00 PM EDT 21 March 2026 Today Tonight and Sunday
Ice ForecastsGreen BayIssued 12:00 PM EDT 21 March 2026 Today Tonight and Sunday
Ice Coverage
9 tenths thick lake ice. Consolidated thick lake ice in Bays de Noc and in southern Green Bay.
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.
|