NW-C-1441-26
PAN PANReceived: 13 May 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveNew shoal (9.2 m) reported between Montréal and Trois-Rivières
A newly discovered shoal has been reported in the St. Lawrence River between Montréal and Trois-Rivières. The shoal is bounded by four positions given in the warning and has a least depth of 9.2 metres. This message cancels NW-C-0270-26 and refers to Shoals number Q5071/26. Consult chart 1312 (NAD83) for details.
Navigate with caution and avoid the reported shoal; consult chart 1312 (NAD83) and update passage plans accordingly.
- 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, 19:10 UTC
Date 2026-05-13 19:10 UTC - Hazards
- shoal, shallow depth
- Least depth
- 9.2 m (30 ft)
- Cancels
- NW-C-0270-26
- References
- Shoals number Q5071/26
- Charts
- 1312(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada76 NM from the area
- RCCJRCC TrentonCanada236 NM from the area
- RCCRCC BostonUnited States244 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM16 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 NM52 NM from the area
- DSCDSC Station L’AcadieJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM58 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-1441-26
Date
2026-05-13 19:10 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0270-26
Areas
Montréal to Trois-Rivières
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 12.679N 072 48.429W
46 12.369N 072 49.307W
46 12.390N 072 49.323W
46 12.700N 072 48.445W
Depth: 9.2 metres
In Force Shoals number Q5071/26 refers.
Position
Centroid : 46° 12.535'N 072° 48.876'W
Pt 1: 46° 12.679'N 072° 48.429'W
Pt 2: 46° 12.369'N 072° 49.307'W
Pt 3: 46° 12.390'N 072° 49.323'W
Pt 4: 46° 12.700'N 072° 48.445'W
Charts
1312(NAD83)