NW-C-4726-26
St. Clair River buoy ASB changed to starboard hand buoy AH4 near Sarnia
ActiveReceived 07 Nov 2026, 00:00 UTC
Warning text
Positions open on the mapNW-C-4726-26
Date
2026-11-07 16:27 UTC
Status
Published
Title
Aids to Navigation
Areas
St. Clair River
Vicinity
Sarnia
Categories
Buoys
Aids
St. Clair River starboard bifurcation spar buoy ASB
Description
Changed to starboard hand buoy AH4.
Position
42° 58.758'N 082° 24.467'W
Charts
14853(NAD83)
Location map
Open on the full mapAnalysis
ActiveAids to navigation update for the St. Clair River near Sarnia. The starboard bifurcation spar buoy ASB at the given position has been changed to a starboard hand buoy AH4. Mariners should note the altered buoy type and designation.
- Type
- Aids to navigation · severity low
- Feed
- Aids to navigationAll warnings of this kind on the map, or as an API feed.
- Location
- St. Clair River, vicinity Sarnia
- Hazards
- changed buoy designation
Worked out automatically from the warning text on 07 Nov 2026, 17:57 UTC. It can be wrong: the official warning text is the authority.
The whole analysis comes with Lagom
This warning's analysis also has:
- Action for mariners
- Lights and buoys affected
- Charts
- Translations
- Nearby lights and rescue centres
The action for mariners, the keep-clear distance, contacts, ships named, translations and the nearby lights and rescue centres come with Lagom and every higher plan, and with the API plans. The official warning text above is always free.