Marine Forecast
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Wind southeast 15 knots increasing to southeast 20 this evening
then diminishing to southeast 15 late overnight. Wind backing to east 15 early
Sunday morning then to north 15 late Sunday morning. Wind increasing to north 20
Sunday afternoon.
Periods of snow or rain changing to scattered showers
overnight and ending Sunday morning. Risk of freezing drizzle overnight.
Visibility 1 mile or less in precipitation.
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 increasing to southeast 20 this evening
then diminishing to southeast 15 late overnight. Wind backing to east 15 early
Sunday morning then to north 15 late Sunday morning. Wind increasing to north 20
Sunday afternoon.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Mainly ice covered.
Weather & Visibility
Issued 06:30 PM EDT 21 March 2026
Tonight and Sunday.
Periods of snow or rain changing to scattered showers
overnight and ending Sunday morning. Risk of freezing drizzle overnight.
Visibility 1 mile or less in precipitation.
Ice ForecastsIssued 12:00 PM EDT 21 March 2026 Today Tonight and Sunday
Ice Coverage
9 tenths thick lake ice. Consolidated thick lake ice along parts of the shore.
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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