Illustrated cartographic portrait of Lake Itasca

Minnesota Marine Forecasts

NWS marine forecasts for 8 coastal waters zones off Minnesota, with current wind and seas from the nearest buoy and 3-day charts.

Minnesota forecast register

Named coastal zones, current observations and official advisories

Forecast zoneForecast zoneWind nowWind nowConditionsConditions
Duluth MN to Port WingSW 4 ktSW 4 ktpeak 18 kt Fri 5 AMpeak 18 kt Fri 5 AM
Grand Marais to Taconite HarborWSW 10 ktWSW 10 ktpeak 28 kt Fri 8 AMpeak 28 kt Fri 8 AM
Grand Portage to Grand MaraisWSW 10 ktWSW 10 ktpeak 21 kt Fri 8 AMpeak 21 kt Fri 8 AM
Silver Bay Harbor to Two HarborsSSW 12 ktSSW 12 ktpeak 16 kt Fri 8 AMpeak 16 kt Fri 8 AM
Taconite Harbor to Silver Bay HarborSSW 12 ktSSW 12 ktpeak 22 kt Fri 8 AMpeak 22 kt Fri 8 AM
Two Harbors to DuluthSW 4 ktSW 4 ktpeak 24 kt Fri 5 AMpeak 24 kt Fri 5 AM

Scroll across the table for all readings →

Minnesota marine forecasts: common questions

Is there a small craft advisory off Minnesota right now?

1 of the 8 Minnesota marine zones is under an active advisory or warning, Outer Apostle Islands (beyond 5 nm) (small craft advisory). Each zone page shows the expiry time and the full text.

How windy is it on the Minnesota coast right now?

Buoys off Minnesota are reporting 4 to 12 knots, the strongest at Silver Bay Harbor to Two Harbors. A knot is 1.15 mph, so 20 knots is about 23 mph. Wind measured offshore is usually stronger than the same wind felt in a harbor.

How rough are the seas off Minnesota today?

The highest seas measured right now are 3 ft off Grand Marais to Taconite Harbor, out of the 5 of 8 Minnesota zones with a wave-capable buoy nearby. Seas are significant wave height, the average of the highest third of the waves, so individual waves run noticeably higher than the figure.

Who issues the marine forecast for Minnesota?

The National Weather Service, from its Duluth, MN office and its Marquette, MI office. Each of the 8 zones on this page gets its own bulletin in a legacy teletype format, reproduced here in full underneath the charts and the live buoy readings.