NW-C-4454-26
PAN PANShoal (10.2 m) reported between Trois-Rivières and Donnacona
No longer in forceReceived 22 Oct 2026, 00:00 UTCArchived 28 Oct 2026, 14:49 UTC
Warning text
Positions open on the mapNW-C-4454-26
Date
2026-10-22 18:28 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-3740-26
Cancels
NW-C-3739-26
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 39.228N 071 46.441W
46 39.236N 071 46.463W
46 39.273N 071 46.435W
46 39.266N 071 46.414W
Depth: 10.2 metres
In Force Shoals number Q5278/26 refers.
Position
Centroid : 46° 39.251'N 071° 46.438'W
Pt 1: 46° 39.228'N 071° 46.441'W
Pt 2: 46° 39.236'N 071° 46.463'W
Pt 3: 46° 39.273'N 071° 46.435'W
Pt 4: 46° 39.266'N 071° 46.414'W
Charts
1314(NAD83)
Location map
Open in the full mapAnalysis
No longer in forceA newly discovered shoal with least depth 10.2 metres is reported in the stretch between Trois-Rivières and Donnacona. The shoal is bounded by four positions; centroid 46°39.251'N 071°46.438'W. Notice issued 2026-10-22 18:28 UTC and is in force. This message cancels NW-C-3740-26 and NW-C-3739-26.
Navigate with caution and avoid the shoal area if your vessel's draught requires greater depth.
- Type
- Wreck / obstruction · severity moderate
- Feed
- Wrecks, obstructions and drifting objectsAll warnings of this kind on the map, or as an API feed.
- Location
- Trois-Rivières to Donnacona
- Validity
- From 22 Oct 2026, 18:28 UTC
In Force (issued 2026-10-22 18:28 UTC) - Hazards
- shoal, shallow depth
- Least depth
- 10.2 m (33 ft)
- Cancels
- NW-C-3740-26, NW-C-3739-26
- Charts
- 1314(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada25 NM from the area
- RCCRCC BostonUnited States260 NM from the area
- RCCJRCC TrentonCanada287 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM15 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM25 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM27 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM32 NM from the area
- DSCDSC Station MontmagnyJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM54 NM from the area
Worked out automatically from the warning text on 22 Oct 2026, 19:37 UTC. It can be wrong: the official warning text is the authority.
KeywordsDANGER