NW-C-1446-26
PAN PANReceived: 13 May 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveShoal with 9.3 m depth between Montréal and Trois-Rivières
A shoal has been confirmed in the St. Lawrence River between Montréal and Trois-Rivières. The shoal area is given by four positions; centroid 46°12.422'N 072°49.594'W and least depth 9.3 metres. This notice cancels NW-C-0252-26 and remains in force until further notice.
Navigate with caution and avoid the shoal area; consult updated charts and passages.
- 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
- Montréal to Trois-Rivières
- Validity
- From 13 May 2026, 19:16 UTC
2026-05-13 19:16 UTC - Hazards
- shoal, shallow depth
- Least depth
- 9.3 m (31 ft)
- Cancels
- NW-C-0252-26
- References
- Shoals number Q5064/26
- Charts
- 1312(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada76 NM from the area
- RCCJRCC TrentonCanada235 NM from the area
- RCCRCC BostonUnited States244 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM15 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM19 NM from the area
- DSCDSC Station Mont-St. BrunoJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM45 NM from the area
- DSCDSC Station MontrealJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM51 NM from the area
- DSCDSC Station L’AcadieJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM57 NM from the area
Generated automatically from the warning text on 28 Sept 2026, 16:58 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-1446-26
Date
2026-05-13 19:16 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0252-26
Areas
Montréal to Trois-Rivières
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 12.409N 072 49.568W
46 12.422N 072 49.626W
46 12.434N 072 49.620W
46 12.421N 072 49.563W
Depth: 9.3 metres
In Force Shoals number Q5064/26 refers.
Position
Centroid : 46° 12.422'N 072° 49.594'W
Pt 1: 46° 12.409'N 072° 49.568'W
Pt 2: 46° 12.422'N 072° 49.626'W
Pt 3: 46° 12.434'N 072° 49.620'W
Pt 4: 46° 12.421'N 072° 49.563'W
Charts
1312(NAD83)