Port of Ontonagon
In short
Ontonagon: no ships detected in port from AIS in the last 3 days (as of Oct 3, 2026, 11:33 UTC). Coverage depends on AIS reception in the area.
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- In port now
- 0
- Arrivals, last 24 h
- 0
- Departures, last 24 h
- 0
- Ships nearby, last 6 h
- 0
Vessels near Ontonagon
Ships Voydar received on AIS near the port in the last 6 hours, most recent first. Being near a port is not a port call; the board above lists calls.
No vessels detected near Ontonagon in the last 6 hours. As our AIS coverage grows, arrivals and departures will appear here live.
Harbour & facilities
Harbour particulars for Ontonagon from the NGA World Port Index (WPI port no. 5380). Depths in metres as charted by NGA.
- Harbour size
- Very small
- Harbour type
- River (natural)
- Shelter
- Good
- Channel depth
- 5 m
- Anchorage depth
- 6 m
- Cargo pier depth
- 5 m
- Pilotage compulsory
- No
- Repairs
- Limited
Source: NGA World Port Index (Pub. 150). Licence: US Government public domain.
Not for navigation.
Forecast
Model forecast for Ontonagon over the next 72 hours, every 6 hours: wind, gusts, waves and visibility. Times in UTC.
| Time (UTC) | Wind (kn) | From | Gusts (kn) | Waves (m) | Period (s) | Visibility (km) |
|---|---|---|---|---|---|---|
| 7 | 166° | 12 | 0.3 | 3 | 24 | |
| 9 | 164° | 16 | 0.4 | 3 | 24 | |
| 12 | 163° | 18 | 0.4 | 3 | 24 | |
| 10 | 204° | 16 | 0.3 | 2 | 8 | |
| 17 | 291° | 26 | 1.3 | 5 | 24 | |
| 17 | 303° | 30 | 1.8 | 6 | 24 | |
| 14 | 277° | 24 | 1.3 | 5 | 24 | |
| 13 | 306° | 21 | 1 | 5 | 23 | |
| 11 | 328° | 18 | 1 | 4 | 24 | |
| 5 | 331° | 11 | 0.7 | 4 | 24 | |
| 3 | 305° | 10 | 0.4 | 4 | 24 |
Forecast: ECMWF IFS 0.25° + ECMWF WAM, run of Oct 3, 2026, 00:00 UTC. Visibility: NOAA GFS 0.25° + GFS-Wave (WAVEWATCH III), run of Oct 3, 2026, 06:00 UTC. Waves are taken from the wave model's nearest sea point, 15 km away.
Source: ECMWF open data (IFS 0.25° forecasts, ECMWF WAM waves). This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Source: www.ecmwf.int. Licence: CC BY 4.0. Licence: CC-BY-4.0 + ECMWF Terms of Use.
Source: NOAA GFS 0.25° and GFS-Wave (WAVEWATCH III) forecasts. Forecast: NOAA NCEP GFS / GFS-Wave (WAVEWATCH III). Licence: US Government work (public domain); NOAA Open Data Dissemination.
A model forecast, not an observation. Not for navigation.
Marine conditions near Ontonagon
Live wind, waves and water temperature from nearby NOAA buoys and tide gauges — free government data the incumbents charge for.
Weather buoys
- OTNM45.2 km
- Ontonagon, MI5.2 km
- Ontonagon, MI9.0 km
- WEST SUPERIOR - 30NM NE of Outer Island, WI76.8 km
- GLRC Observatory86.7 km
Tide gauges
- Ontonagon, MI4.6 km
Source: NOAA National Data Buoy Center & CO-OPS Tides & Currents — public domain.
Reported arrivals & departures Authority-reported
Arrival and departure records for Ontonagon published by the authority named on each row, separate from the calls Voydar detects on AIS. Earliest record: Apr 20, 2006.
| Vessel | Record | Date (UTC) | Berth / route | Source |
|---|---|---|---|---|
| JOHN G MUNSON | Arrival | Oct 28, 2008(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Oct 9, 2008(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Nov 7, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN J. BOLAND | Arrival | Nov 1, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Oct 20, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN J. BOLAND | Arrival | Oct 12, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Oct 7, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Sep 26, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Sep 16, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN J. BOLAND | Arrival | Sep 15, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Aug 18, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
| JOHN G MUNSON | Arrival | Aug 8, 2007(date only) | Canada → — | USACE foreign traffic vessel entrances & clearances |
Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.
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