Michigan City CG Station, IN (18CI3) — Live Marine Conditions & Buoy Data
NOAA station 18CI3, Michigan City CG Station, IN, reports real-time marine conditions from 41.730°N, 86.910°W in Lake Michigan (Indiana). Readings refresh roughly every 10 minutes, and Big Buoy adds a solunar table and a multi-day weather outlook for the area.
What NOAA buoy 18CI3 measures
Station 18CI3 does not report a full meteorological suite; Big Buoy shows the observations available at this location and pairs it with the nearest offshore buoy so you still get a complete picture of the area.
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 18CI3 located?
- Michigan City CG Station, IN (18CI3) reports from 41.730°N, 86.910°W in Lake Michigan (Indiana).
- How often is NOAA buoy 18CI3 updated?
- Station 18CI3 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 18CI3 measure?
- Big Buoy shows the observations available at this location, plus the nearest offshore buoy for Michigan City CG Station, IN, plus solunar peak windows and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Michigan City CG Station, IN 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.