Marine forecast
Grand Haven to Whitehall, MI
- current wind
- 13 kt N
- Gusts
- 15 kt
- Seas
- 2.3 ft
- Period
- 4 sec
- Air
- 65°F
Observed Tue 3:20 PM | LMZ847
- Gusts now
- 15 kt
- Seas now
- 2.3 ft · 4 sec
- Air
- 65°F
- 72-hr peak
- 34 kt
- Peak seas
- 10 ft
In brief
At 3:20 pm EDT on Oct 13, 2026, NDBC station MKGM4 (Muskegon CG Station, Muskegon, MI, 4 miles away) measured wind from the N at 13 kt, gusting to 15 kt; buoy 45029 measured seas of 2.3 ft. The NWS forecast for Grand Haven to Whitehall, MI issued at 2:11 pm EDT on Oct 13, 2026 reads, for through early evening: “Northwest winds 10 to 15 knots. Sunny.”
Source: National Weather Service Grand Rapids MI forecast; NDBC observations
Wind forecast · ktPeak 34 kt
Seas forecast · ftPeak 10 ft
NWS marine forecast
| Period | Forecast |
|---|---|
| Through Early Evening | Northwest winds 10 to 15 knots. Sunny. Waves 3 to 5 feet. |
| Tonight | Northwest winds 5 to 10 knots veering northeast in the late evening and overnight. Mostly clear in the evening, then mostly cloudy with a slight chance of rain showers after midnight. Waves 2 to 4 feet. |
| Wednesday | Northeast winds 5 to 15 knots backing north 10 to 20 knots early in the afternoon. Partly sunny. Waves 1 to 3 feet. |
| Wednesday Night | Northeast winds 15 to 20 knots veering east after midnight. Partly cloudy. Waves 2 to 4 feet. |
| Thursday | East winds 10 to 20 knots. Mostly cloudy with rain showers likely. Waves around 1 foot. |
| Thursday Night | East winds around 10 knots backing north in the late evening and early morning, then becoming northwest gales to 40 knots after midnight. Rain showers likely. Waves 1 to 2 feet building to 5 to 7 feet after midnight. |
| Friday | Northwest gales to 45 knots increasing to storm force winds to 50 knots early in the afternoon. Partly sunny with a chance of rain showers. Waves 12 to 16 feet. |
| Saturday | Northwest winds 10 to 20 knots backing west in the late morning and afternoon. Sunny. Waves 5 to 7 feet. |
| Sunday | Southwest gales to 35 knots. Sunny. Waves 7 to 11 feet. |
Issued Tue 2:11 PM by Grand Rapids MI (product NSHGRR).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 3:20 PM | 13 kt N | 15 kt | — | — |
| Tue 2:50 PM | 12 kt N | 14 kt | — | — |
| Tue 1:50 PM | 11 kt NNW | 11 kt | — | — |
| Tue 12:50 PM | 11 kt NW | 12 kt | — | — |
| Tue 11:50 AM | 11 kt WNW | 12 kt | — | — |
| Tue 10:50 AM | 16 kt WNW | 17 kt | — | — |
| Tue 9:50 AM | 16 kt WNW | 17 kt | — | — |
| Tue 8:50 AM | 18 kt W | 19 kt | — | — |
| Tue 7:50 AM | 13 kt S | 15 kt | — | — |
| Tue 6:50 AM | 13 kt S | 17 kt | — | — |
| Tue 5:50 AM | 15 kt S | 16 kt | — | — |
| Tue 4:50 AM | 17 kt S | 18 kt | — | — |
Observed Tue 3:20 PM at NDBC buoy MKGM4 (Muskegon CG Station, Muskegon, MI), 3.5 miles away. Seas from buoy 45029 (Holland Buoy, MI), 25.7 miles away, at Tue 3:00 PM.
Frequently asked questions
What is the marine forecast for Grand Haven to Whitehall today?
Through Early Evening: Northwest winds 10 to 15 knots. Sunny. Waves 3 to 5 feet.
Is there a small craft advisory for Grand Haven to Whitehall?
No advisories, warnings or watches are in effect for NWS zone LMZ847 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 Haven to Whitehall right now?
Seas are running 2.3 ft at a 4-second period, measured at NDBC buoy MKGM4 Tue 3:20 PM, 3.5 miles from this zone. The forecast peaks at 10.0 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 LMZ847, issued by Grand Rapids 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 NSHGRR, issued Tue 2:11 PM. Observations: NOAA National Data Buoy Center station MKGM4, read Tue 3:20 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.