NW-C-1444-26
PAN PANReceived: 13 May 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveShoal (6.3 m) reported between Montréal and Trois-Rivières
A shoal has been discovered and confirmed in the St. Lawrence River between Montréal and Trois-Rivières. The shoal area is defined by four positions with a reported least depth of 6.3 metres. Charts notified: 1312 (NAD83). This message cancels NW-C-0254-26.
Navigate with caution and avoid the shoal area; consult chart 1312 and adjust passage accordingly.
- Type
- Navigational hazard · 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, 19:14 UTC
Date 2026-05-13 19:14 UTC - Hazards
- shoal, shallow depth
- Least depth
- 6.3 m (21 ft)
- Cancels
- NW-C-0254-26
- References
- Shoals number Q5068/26
- 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 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, 16:47 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-1444-26
Date
2026-05-13 19:14 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0254-26
Areas
Montréal to Trois-Rivières
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 12.328N 072 49.283W
46 12.374N 072 49.485W
46 12.396N 072 49.475W
46 12.350N 072 49.273W
Depth: 6.3 metres
In Force Shoals number Q5068/26 refers.
Position
Centroid : 46° 12.362'N 072° 49.379'W
Pt 1: 46° 12.328'N 072° 49.283'W
Pt 2: 46° 12.374'N 072° 49.485'W
Pt 3: 46° 12.396'N 072° 49.475'W
Pt 4: 46° 12.350'N 072° 49.273'W
Charts
1312(NAD83)