Wisconsin Marine Forecasts
NWS marine forecasts for 20 coastal waters zones off Wisconsin, with current wind and seas from the nearest buoy and 3-day charts.
Wisconsin forecast register
Named coastal zones, current observations and official advisories
| Forecast zoneForecast zone | Wind nowWind now | ConditionsConditions |
|---|---|---|
| Chequamegon Bay-Bayfield to Oak Point | NNE 3 ktNNE 3 kt | peak 21 kt Fri 8 AMpeak 21 kt Fri 8 AM |
| Lake Michigan from North Point Light to Wind Point | W 8 ktW 8 kt | peak 36 kt Fri 1 PMpeak 36 kt Fri 1 PM |
| Lake Michigan from Port Washington to North Point Light | NW 8 ktNW 8 kt | peak 36 kt Fri 1 PMpeak 36 kt Fri 1 PM |
| Lake Michigan from Rock Island Passage to Sturgeon Bay | W 10 ktW 10 kt | peak 31 kt Fri 11 AMpeak 31 kt Fri 11 AM |
| Lake Michigan from Sheboygan to Port Washington | W 11 ktW 11 kt | peak 37 kt Fri 1 PMpeak 37 kt Fri 1 PM |
| Lake Michigan from Sturgeon Bay to Two Rivers | WNW 9 ktWNW 9 kt | peak 33 kt Fri 2 PMpeak 33 kt Fri 2 PM |
| Lake Michigan from Two Rivers to Sheboygan | W 11 ktW 11 kt | peak 36 kt Fri 2 PMpeak 36 kt Fri 2 PM |
| Lake Michigan from Wind Point WI to Winthrop Harbor | W 10 ktW 10 kt | peak 32 kt Fri 1 PMpeak 32 kt Fri 1 PM |
| North Point Light to Wind Point | W 8 ktW 8 kt | peak 29 kt Fri 1 PMpeak 29 kt Fri 1 PM |
| Oak Point to Saxon Harbor | NNE 3 ktNNE 3 kt | Small Craft AdvisorySmall Craft Advisory |
| Port Washington to North Point Light | NW 8 ktNW 8 kt | peak 33 kt Fri 2 PMpeak 33 kt Fri 2 PM |
| Port Wing to Sand Island | NE 3 ktNE 3 kt | peak 30 kt Fri 7 AMpeak 30 kt Fri 7 AM |
| Rock Island Passage to Sturgeon Bay | W 10 ktW 10 kt | peak 28 kt Fri 12 PMpeak 28 kt Fri 12 PM |
| Sand Island to Bayfield | WSW 7 ktWSW 7 kt | peak 22 kt Fri 8 AMpeak 22 kt Fri 8 AM |
| Sheboygan to Port Washington | W 11 ktW 11 kt | peak 27 kt Fri 12 PMpeak 27 kt Fri 12 PM |
| Sturgeon Bay to Two Rivers | WNW 9 ktWNW 9 kt | peak 27 kt Fri 12 PMpeak 27 kt Fri 12 PM |
| Two Rivers to Sheboygan | W 11 ktW 11 kt | peak 28 kt Fri 1 PMpeak 28 kt Fri 1 PM |
| Wind Point WI to Winthrop Harbor | W 10 ktW 10 kt | peak 28 kt Fri 1 PMpeak 28 kt Fri 1 PM |
Scroll across the table for all readings →
Wisconsin marine forecasts: common questions
Is there a small craft advisory off Wisconsin right now?
1 of the 20 Wisconsin marine zones is under an active advisory or warning, Oak Point to Saxon Harbor (small craft advisory). Each zone page shows the expiry time and the full text.
How windy is it on the Wisconsin coast right now?
Buoys off Wisconsin are reporting 3 to 11 knots, the strongest at Lake Michigan from Sheboygan to Port Washington. 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 Wisconsin today?
The highest seas measured right now are 3 ft off Green Bay south of Cedar River to Rock Island Passage and north of Oconto WI to Little Sturgeon Bay WI, out of the 18 of 20 Wisconsin 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 Wisconsin?
The National Weather Service, from its Duluth, MN office, its Green Bay, WI office and its Milwaukee/Sullivan, WI office. Each of the 20 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.