NW-C-4520-26
PAN PANArchivedReceived: 27 Oct 2026, 00:00Archived: 29 Oct 2026, 18:46Updated: 2 Nov 2026, 01:50
analysis
No longer in forceShoal with 11.2 m depth reported between Trois-Rivières and Donnacona
A newly discovered shoal has been reported in the area between Trois-Rivières and Donnacona. Four positions are given defining the shoal; a centroid is indicated and the least depth is 11.2 metres. Report published 2026-10-27 16:10 UTC. Mariners should note Shoals number Q5287/26 on charts.
Note position on chart and navigate with caution in the area; consult chart 1313(NAD83) and shoals list Q5287/26.
- Type
- Wreck / obstruction · severity moderate
- Feed
- Wrecks, obstructions and drifting objectsAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/hazards/
- Location
- Trois-Rivières to Donnacona
- Validity
- From 27 Oct 2026, 16:10 UTC
Date 2026-10-27 16:10 UTC - Hazards
- shoal, shallow depth (11.2 m)
- Least depth
- 11.2 m (37 ft)
- References
- Shoals number Q5287/26
- Charts
- 1313(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada54 NM from the area
- RCCRCC BostonUnited States251 NM from the area
- RCCJRCC TrentonCanada258 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM3 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM38 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM44 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM54 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM56 NM from the area
Generated automatically from the warning text on 27 Oct 2026, 17:17 UTC. It can be wrong: the original warning below is the authoritative text.
Keywords
- Geometry refsbounded, polygon
- Dangerous AreaDANGER
- Geometry phrasesarea bounded, bounded by
Message content
NW-C-4520-26
Date
2026-10-27 16:10 UTC
Status
Published
Title
Newly Discovered Dangers
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 24.862N 072 22.730W
46 24.860N 072 22.733W
46 24.863N 072 22.737W
46 24.864N 072 22.734W
Depth: 11.2 metres
In Force Shoals number Q5287/26 refers.
Position
Centroid :
Pt 1:
Pt 2:
Pt 3:
Pt 4:
Charts
1313(NAD83)