NW-C-1439-26
PAN PANReceived: 13 May 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveNewly discovered shoal between Montréal and Trois-Rivières, depth 8.4 m
A shoal has been reported in the St. Lawrence River between Montréal and Trois-Rivières with a surveyed depth of 8.4 metres. The shoal is described by four bounding positions and a centroid is given. Chart 1312 (NAD83) is affected. This notice cancels NW-C-0265-26.
Navigate with caution and avoid the shoal area; consult chart 1312 (NAD83).
- 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, 19:07 UTC
Date 2026-05-13 19:07 UTC. In Force - Hazards
- shoal, shallow depth
- Least depth
- 8.4 m (28 ft)
- Cancels
- NW-C-0265-26
- 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, 16:57 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-1439-26
Date
2026-05-13 19:07 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0265-26
Areas
Montréal to Trois-Rivières
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 12.652N 072 48.436W
46 12.349N 072 49.293W
46 12.370N 072 49.308W
46 12.673N 072 48.452W
Depth: 8.4 metres
In Force Shoals number Q5072/26 refers.
Position
Centroid : 46° 12.511'N 072° 48.872'W
Pt 1: 46° 12.652'N 072° 48.436'W
Pt 2: 46° 12.349'N 072° 49.293'W
Pt 3: 46° 12.370'N 072° 49.308'W
Pt 4: 46° 12.673'N 072° 48.452'W
Charts
1312(NAD83)