Marine Forecast
Illustrated map of Grand Traverse Bay

Marine forecast

Grand Traverse Bay: Grand Traverse Lt.–Norwood

current wind
18 kt W
Gusts
19 kt
Seas
2.3 ft
Period
4 sec
Air
58°F

Observed Tue 1:00 PM | LMZ323

Gusts now
19 kt
Seas now
2.3 ft · 4 sec
Air
58°F
Water
61°F
72-hr peak
30 kt

In brief

At 1:00 pm EDT on Oct 13, 2026, NDBC station 45183 (Sleeping Bear Dunes, 15 miles away) measured wind from the W at 18 kt, gusting to 19 kt, with seas of 2.3 ft. The NWS forecast for Grand Traverse Bay: Grand Traverse Lt.–Norwood, MI issued at 2:51 pm EDT on Oct 13, 2026 reads, for through early evening: “Northwest wind 10 to 15 knots. Mostly cloudy.”

Source: National Weather Service Gaylord MI forecast; NDBC observations

Wind forecast · ktPeak 30 kt

051015202530354045Wed 14Thu 15Fri 16051015202530354045Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | EDT

Seas forecast · ftPeak 5 ft

012345Wed 14Thu 15Fri 16012345Wed 14Thu 15Fri 16
Oct 13-16 | EDT

NWS marine forecast

PeriodForecast
Through Early EveningNorthwest wind 10 to 15 knots. Mostly cloudy. Waves 2 feet or less.
TonightNorthwest wind 10 to 15 knots. Mostly cloudy. Waves 2 feet or less.
WednesdayNorth wind 10 to 15 knots. Mostly cloudy. Waves 2 feet or less.
Wednesday NightNortheast wind 5 to 10 knots. Patchy fog. Waves 2 feet or less.
ThursdayLight winds. Chance of showers. Waves 2 feet or less. See the open lakes forecast for days 3 through 5.

Issued Tue 2:51 PM by Gaylord MI (product NSHAPX).

TimeWindGustSeasWater
Tue 1:00 PM 18 kt W 19 kt 2.3 ft 61°F
Tue 12:30 PM 16 kt WNW 19 kt 2.0 ft 61°F
Tue 11:30 AM 19 kt WSW 25 kt 2.0 ft 61°F
Tue 10:30 AM 18 kt W 25 kt 1.6 ft 61°F
Tue 9:30 AM 12 kt WSW 14 kt 1.3 ft 61°F
Tue 8:30 AM 6 kt NNE 10 kt 1.0 ft 61°F
Tue 7:30 AM 2 kt E 4 kt 1.0 ft 61°F
Tue 6:30 AM 2 kt SSW 4 kt 1.0 ft 61°F
Tue 5:30 AM 4 kt SSW 6 kt 1.3 ft 61°F
Tue 4:30 AM 2 kt SSE 4 kt 1.3 ft 61°F
Tue 3:30 AM 8 kt SSW 10 kt 1.3 ft 61°F
Tue 2:30 AM 6 kt S 8 kt 1.3 ft 61°F

Observed Tue 1:00 PM at NDBC buoy 45183 (Sleeping Bear Dunes), 14.9 miles away.

What is the marine forecast for Grand Traverse Bay: Grand Traverse Lt.–Norwood today?

Through Early Evening: Northwest wind 10 to 15 knots. Mostly cloudy. Waves 2 feet or less.

Is there a small craft advisory for Grand Traverse Bay: Grand Traverse Lt.–Norwood?

No advisories, warnings or watches are in effect for NWS zone LMZ323 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 Grand Traverse Bay: Grand Traverse Lt.–Norwood right now?

Seas are running 2.3 ft at a 4-second period, measured at NDBC buoy 45183 Tue 1:00 PM, 14.9 miles from this zone. The forecast peaks at 5.0 ft Fri 1 PM.

What is the water temperature at Grand Traverse Bay: Grand Traverse Lt.–Norwood?

The nearest buoy read 61°F (16°C) at Tue 1:00 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.

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 LMZ323, issued by Gaylord 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 NSHAPX, issued Tue 2:51 PM. Observations: NOAA National Data Buoy Center station 45183, read Tue 1:00 PM. Retrieved Oct 13, 3:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.