NW-C-4703-26
PAN PANNewly discovered shoal between Trois-Rivières and Donnacona
ActiveReceived 06 Nov 2026, 00:00 UTC
Warning text
Positions open on the mapNW-C-4703-26
Date
2026-11-06 16:00 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-1124-26
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 30.380N 072 13.887W
46 29.655N 072 14.222W
46 29.680N 072 14.336W
46 30.405N 072 14.000W
Depth: 9.6 metres
In Force Shoals number Q5306/26 refers.
Position
Centroid : 46° 30.030'N 072° 14.111'W
Pt 1: 46° 30.380'N 072° 13.887'W
Pt 2: 46° 29.655'N 072° 14.222'W
Pt 3: 46° 29.680'N 072° 14.336'W
Pt 4: 46° 30.405'N 072° 14.000'W
Charts
1313(NAD83),
1314(NAD83)
Location map
Open on the full mapAnalysis
ActiveA shoal has been confirmed in the St. Lawrence River between Trois-Rivières and Donnacona. The shoal area is bounded by four positions with a least depth of 9.6 metres; centroid given. Mariners should consult charts and navigate with caution. This message cancels NW-C-1124-26.
Consult charts; navigate with caution and avoid the shoal area.
- 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 06 Nov 2026, 16:00 UTC
Date 2026-11-06 16:00 UTC - Hazards
- shoal, shallow depth 9.6 metres
- Least depth
- 9.6 m (31 ft)
- Cancels
- NW-C-1124-26
- Charts
- 1313(NAD83), 1314(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada46 NM from the area
- RCCRCC BostonUnited States254 NM from the area
- RCCJRCC TrentonCanada266 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM11 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM36 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM46 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM46 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM48 NM from the area
Worked out automatically from the warning text on 06 Nov 2026, 16:58 UTC. It can be wrong: the official warning text is the authority.
KeywordsDANGER