Marine forecast
Lake St. Clair Open Lake, MI
- current wind
- 10 kt WSW
- Seas
- 1.0 ft
- Period
- 3 sec
- Air
- 71°F
- Water
- 62°F
Observed Tue 3:00 PM | LCZ460
- Seas now
- 1.0 ft · 3 sec
- Air
- 71°F
- Water
- 62°F
- 72-hr peak
- 25 kt
In brief
At 3:00 pm EDT on Oct 13, 2026, NDBC station 45147 (Lake St Clair, 11 miles away) measured wind from the WSW at 10 kt, with seas of 1.0 ft. The NWS forecast for Lake St. Clair Open Lake, MI issued at 9:53 am EDT on Oct 13, 2026 reads, for rest of today: “Southwest winds 15 to 20 knots. Sunny.”
Source: National Weather Service Detroit/Pontiac MI forecast; NDBC observations
Wind forecast · ktPeak 25 kt
NWS marine forecast
| Period | Forecast |
|---|---|
| Rest Of Today | Southwest winds 15 to 20 knots. Sunny. Waves 1 to 3 feet. |
| Tonight | West winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Clear in the evening...then partly cloudy with a chance of light rain after midnight. Waves 2 feet or less. |
| Wednesday | North winds 5 to 10 knots. Mostly cloudy. Waves 2 feet or less. |
| Wednesday Night | Northeast winds 10 to 15 knots. Partly cloudy becoming mostly cloudy. Waves 1 to 3 feet. |
| Thursday | East winds 10 to 15 knots diminishing to 5 to 10 knots in the afternoon...then increasing to 10 to 15 knots in the evening. Partly sunny in the morning becoming mostly cloudy. A chance of light rain in the afternoon. Light rain likely in the evening. Waves 2 feet or less. |
| Friday | Northwest at 35 knot gales with gusts to 40 knot gales. Partly cloudy. Light rain likely. Waves 3 to 5 feet. Waves occasionally around 7 feet. A Gale Warning may be needed. |
| Saturday | West at 35 knot gales with gusts to 40 knot gales. Clear. Waves 3 to 5 feet. Waves occasionally around 7 feet. |
Issued Tue 9:53 AM by Detroit/Pontiac MI (product GLFSC).
Synopsis
Low pressure, 29.60 inches, moves across northern lower Michigan this morning. Departure of this system will then facilitate the passage of a cold front tomorrow morning, bringing breezy northwest flow across northern Lake Huron. LCZ460-132200- Lake St Clair- 953 AM EDT Tue Oct 13 2026
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 3:00 PM | 10 kt WSW | — | 1.0 ft | 62°F |
| Tue 2:00 PM | 12 kt WSW | — | 1.0 ft | 62°F |
| Tue 1:00 PM | 10 kt WSW | — | 0.7 ft | 62°F |
| Tue 12:00 PM | 12 kt WSW | — | 1.0 ft | 62°F |
| Tue 11:00 AM | 10 kt WSW | — | 1.3 ft | 62°F |
| Tue 10:00 AM | 12 kt SW | — | 1.3 ft | 62°F |
| Tue 9:00 AM | 12 kt SW | — | 1.0 ft | 62°F |
| Tue 8:00 AM | 12 kt SW | — | 1.3 ft | 62°F |
| Tue 7:00 AM | 12 kt SW | — | 1.3 ft | 62°F |
| Tue 6:00 AM | 14 kt SSW | — | 1.3 ft | 62°F |
| Tue 5:00 AM | 12 kt SSW | — | 1.0 ft | 62°F |
| Tue 4:00 AM | 8 kt SSW | — | 1.0 ft | 62°F |
Observed Tue 3:00 PM at NDBC buoy 45147 (Lake St Clair), 11.1 miles away.
Frequently asked questions
What is the marine forecast for Lake St. Clair Open Lake today?
Rest Of Today: Southwest winds 15 to 20 knots. Sunny. Waves 1 to 3 feet.
Is there a small craft advisory for Lake St. Clair Open Lake?
No advisories, warnings or watches are in effect for NWS zone LCZ460 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 Lake St. Clair Open Lake right now?
Seas are running 1.0 ft at a 3-second period, measured at NDBC buoy 45147 Tue 3:00 PM, 11.1 miles from this zone.
What is the water temperature at Lake St. Clair Open Lake?
The nearest buoy read 62°F (17°C) at Tue 3:00 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 LCZ460, issued by Detroit/Pontiac 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 GLFSC, issued Tue 9:53 AM. Observations: NOAA National Data Buoy Center station 45147, read Tue 3:00 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.