Mid Superior (45001) — Live Marine Conditions & Buoy Data
NOAA station 45001, Mid Superior, reports real-time marine conditions from 48.061°N, 87.793°W in Lake Superior. Readings refresh roughly every 10 minutes, and Big Buoy adds a solunar table and a multi-day weather outlook for the area.
Lake Superior Marine Conditions — Mid Superior is one of several stations in Lake Superior. See live buoy data and solunar for the whole area.
Current conditions at Mid Superior
As of August 21, 2026 at 18:30 UTC, Mid Superior (45001) is reporting water temperature 55°F, air temperature 58°F, wave height 1.3 ft at a 4-second dominant period, wind from the NNW at 2 mph gusting 4 mph, and barometric pressure 29.91 inHg.
- Water temperature
- 55°F
- Air temperature
- 58°F
- Wave height
- 1.3 ft @ 4 s
- Wind
- NNW 2 mph (gust 4)
- Barometric pressure
- 29.91 inHg
Observed August 21, 2026 at 18:30 UTC from NOAA NDBC station 45001. Readings update about every 10 minutes.
What NOAA buoy 45001 measures
As a NOAA meteorological station, 45001 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 Superior
Lake Superior is the coldest, deepest, and largest of the Great Lakes, with enough open water and fetch to build true offshore seas. Water stays cold most of the year and storms move through fast, so a sustained blow can raise steep, short-period waves with little warning — read wind, fetch, and sea state together before heading out.
Frequently asked questions
- Where is NOAA buoy 45001 located?
- Mid Superior (45001) reports from 48.061°N, 87.793°W in Lake Superior.
- How often is NOAA buoy 45001 updated?
- Station 45001 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 45001 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for Mid Superior, plus solunar peak windows and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Mid Superior 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.