Michigan City Harbor Entrance Light, Michigan City, IN (MCYI3) — Live Marine Conditions & Buoy Data
NOAA station MCYI3, Michigan City Harbor Entrance Light, Michigan City, IN, reports real-time marine conditions from 41.729°N, 86.912°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.
Current conditions at Michigan City Harbor Entrance Light, Michigan City, IN
As of October 19, 2026 at 20:20 UTC, Michigan City Harbor Entrance Light, Michigan City, IN (MCYI3) is reporting air temperature 65°F, wind from the N at 7 mph gusting 8 mph, and barometric pressure 30.33 inHg.
- Air temperature
- 65°F
- Wind
- N 7 mph (gust 8)
- Barometric pressure
- 30.33 inHg
Observed October 19, 2026 at 20:20 UTC from NOAA NDBC station MCYI3. Readings update about every 10 minutes.
What NOAA buoy MCYI3 measures
As a NOAA meteorological station, MCYI3 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
- What is the air temperature at Michigan City Harbor Entrance Light, Michigan City?
- Air temperature at Michigan City Harbor Entrance Light, Michigan City was 65°F. Measured October 19, 2026 at 20:20 UTC by NOAA station MCYI3 (Michigan City Harbor Entrance Light, Michigan City, IN).
- What is the wind doing at Michigan City Harbor Entrance Light, Michigan City?
- Wind at Michigan City Harbor Entrance Light, Michigan City was from the N at 7 mph, with peak gusts to 8 mph. Measured October 19, 2026 at 20:20 UTC by NOAA station MCYI3 (Michigan City Harbor Entrance Light, Michigan City, IN). NDBC records wind at the station’s anemometer height, which is not the 10 m height used in marine forecasts.
- What is the barometric pressure at Michigan City Harbor Entrance Light, Michigan City?
- Sea-level pressure at Michigan City Harbor Entrance Light, Michigan City was 30.33 inHg (1027.1 hPa). Measured October 19, 2026 at 20:20 UTC by NOAA station MCYI3 (Michigan City Harbor Entrance Light, Michigan City, IN). NDBC reports pressure reduced to sea level rather than the raw reading at the station.
- Where is NOAA buoy MCYI3 located?
- Michigan City Harbor Entrance Light, Michigan City, IN (MCYI3) reports from 41.729°N, 86.912°W in Lake Michigan (Indiana).
- How often is NOAA buoy MCYI3 updated?
- Station MCYI3 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 MCYI3 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for Michigan City Harbor Entrance Light, Michigan City, IN, plus solunar peak windows and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Michigan City Harbor Entrance Light, Michigan City, 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.