Big Sable Point, MI (BSBM4) — Live Marine Conditions & Buoy Data
NOAA station BSBM4, Big Sable Point, MI, reports real-time marine conditions from 44.055°N, 86.514°W in Lake Michigan (Michigan). Readings refresh roughly every 10 minutes, and Big Buoy adds a solunar table and a multi-day weather outlook for the area.
Lake Michigan Marine Conditions — Big Sable Point, MI is one of several stations in Lake Michigan. See live buoy data and solunar for the whole area.
Current conditions at Big Sable Point, MI
As of August 21, 2026 at 20:40 UTC, Big Sable Point, MI (BSBM4) is reporting air temperature 73°F, wind from the S at 10 mph gusting 14 mph, and barometric pressure 29.99 inHg.
- Air temperature
- 73°F
- Wind
- S 10 mph (gust 14)
- Barometric pressure
- 29.99 inHg
Observed August 21, 2026 at 20:40 UTC from NOAA NDBC station BSBM4. Readings update about every 10 minutes.
What NOAA buoy BSBM4 measures
As a NOAA meteorological station, BSBM4 reports wind speed, gusts and direction, barometric pressure, air and water temperature, and — where wave sensors are fitted — significant wave height, swell period, and wave direction.
What to watch in Lake Michigan
Lake Michigan’s long north-south axis lets a sustained northerly or southerly wind build large, steep seas over its full fetch, sometimes within hours. Summer stratification is sharp and wind-driven upwelling can swing nearshore water temperature 15–20°F in a day, so watch wind direction and buoy temperatures together.
Frequently asked questions
- Where is NOAA buoy BSBM4 located?
- Big Sable Point, MI (BSBM4) reports from 44.055°N, 86.514°W in Lake Michigan (Michigan).
- How often is NOAA buoy BSBM4 updated?
- Station BSBM4 typically reports new observations about every 10 minutes. Big Buoy refreshes continuously so you always see the latest readings, alongside a solunar table for the area.
- What does NOAA buoy BSBM4 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for Big Sable Point, MI, plus solunar peak windows and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Big Sable Point, MI and every other NOAA buoy is free with no account required. Big Buoy Pro adds the Wind Tab, the Depth Chart, satellite overlays (sea surface temp, chlorophyll, currents), 16-day forecasts, and forecast model switching.