NW-C-4477-26

SÉCURITÉ

Île Saint-Ours light buoy M16 unreliable, reduced intensity (Montréal to Trois-Rivières)

No longer in forceReceived 25 Oct 2026, 00:00 UTCArchived 27 Oct 2026, 14:49 UTC

Warning text

NW-C-4477-26 Date 2026-10-25 00:57 UTC Status Published Title Aids to Navigation Areas Montréal to Trois-Rivières Vicinity Île Saint-Ours Categories Buoys Aids Île Saint-Ours light buoy M16 LL 2281 Description Unreliable, reduced intensity Position Charts 1311(NAD83)

Analysis

No longer in force

The Île Saint-Ours light buoy M16 (LL 2281) is reported unreliable with reduced intensity. Notice published 2026-10-25 00:57 UTC. Affects the navigation area between Montréal and Trois-Rivières. Mariners should be aware that the light may be diminished and take precautions when navigating.

Navigate with caution, maintain vigilant visual lookout for aids to navigation and do not rely solely on the light.

Type: Aids to navigation · severity low
Feed: Aids to navigationAll warnings of this kind on the map, or as an API feed.
Location: Montréal to Trois-Rivières, vicinity Île Saint-Ours
Validity: From 25 Oct 2026, 00:57 UTC
Date 2026-10-25 00:57 UTC
Hazards: aid to navigation reduced intensity, unreliable light
Charts: 1311(NAD83)

Aids to navigation affected

Reduced rangeÎle Saint-Ours light buoy M16 · LL 2281

No aids-to-navigation list in the database yet; aids are shown as the warning names them.

Worked out automatically from the warning text on 25 Oct 2026, 02:17 UTC. It can be wrong: the official warning text is the authority.

KeywordsUNRELIABLE

Back to Canada - St. Lawrence