Marine Forecast
Illustrated map of Grand Traverse Bay

Marine forecast

Huron Islands to Marquette, MI

current wind
6 kt N
Gusts
10 kt
Seas
3.3 ft
Air
50°F
72-hr peak
35 kt

Observed Tue 1:50 PM | LSZ248

Gusts now
10 kt
Seas now
3.3 ft
Air
50°F
72-hr peak
35 kt
Peak seas
12 ft

In brief

At 1:50 pm CDT on Oct 13, 2026, NDBC station BIGM4 (Big Bay, MI, 9 miles away) measured wind from the N at 6 kt, gusting to 10 kt; buoy 45025 measured seas of 3.3 ft. The NWS forecast for Huron Islands to Marquette, MI issued at 10:01 am CDT on Oct 13, 2026 reads, for rest of today: “North wind 10 to 15 knots backing northwest late. Cloudy.”

Source: National Weather Service Marquette MI forecast; NDBC observations

Wind forecast · ktPeak 35 kt

05101520253035404550Wed 14Thu 15Fri 1605101520253035404550Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | CDT

Seas forecast · ftPeak 12 ft

0123456789101112Wed 14Thu 15Fri 160123456789101112Wed 14Thu 15Fri 16
Oct 13-16 | CDT

NWS marine forecast

PeriodForecast
Rest Of TodayNorth wind 10 to 15 knots backing northwest late. Cloudy. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 3 feet.
TonightNorthwest wind 10 to 20 knots. Cloudy. Waves subsiding to 1 to 2 feet, then building to 2 to 4 feet.
WednesdayNorthwest wind 10 to 20 knots. Cloudy. Waves subsiding to 2 to 3 feet.
Wednesday NightNorth wind less than 10 knots veering east after midnight. Gusts up to 17 knots. Mostly cloudy. Waves subsiding to 1 to 2 feet.

Issued Tue 10:01 AM by Marquette MI (product NSHMQT).

TimeWindGustSeasWater
Tue 1:50 PM 6 kt N 10 kt — —
Tue 12:50 PM 10 kt N 12 kt — —
Tue 11:50 AM 10 kt N 12 kt — —
Tue 10:50 AM 10 kt NNE 12 kt — —
Tue 9:50 AM 8 kt NE 13 kt — —
Tue 8:50 AM 7 kt NE 16 kt — —
Tue 7:50 AM 7 kt NNE 8 kt — —
Tue 6:50 AM 3 kt ENE 5 kt — —
Tue 5:50 AM 0 kt 3 kt — —
Tue 4:50 AM 0 kt 3 kt — —
Tue 3:50 AM 1 kt SE 6 kt — —
Tue 2:50 AM 5 kt SE 8 kt — —

Observed Tue 1:50 PM at NDBC buoy BIGM4 (Big Bay, MI), 8.9 miles away. Seas from buoy 45025 (South Entry Buoy, South Keweenaw Peninsula, MI), 41.7 miles away, at Tue 12:00 PM.

What is the marine forecast for Huron Islands to Marquette today?

Rest Of Today: North wind 10 to 15 knots backing northwest late. Cloudy. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 3 feet.

Is there a small craft advisory for Huron Islands to Marquette?

No advisories, warnings or watches are in effect for NWS zone LSZ248 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at Huron Islands to Marquette right now?

Seas are running 3.3 ft, measured at NDBC buoy BIGM4 Tue 1:50 PM, 8.9 miles from this zone. The forecast peaks at 12.0 ft Fri 2 PM.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone LSZ248, issued by Marquette MI, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product NSHMQT, issued Tue 10:01 AM. Observations: NOAA National Data Buoy Center station BIGM4, read Tue 1:50 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.