NW-C-1666-26
PAN PANReceived: 20 May 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveShoal with 10.0 m depth reported between Montréal and Trois-Rivières
A newly discovered shoal has been reported between Montréal and Trois-Rivières. The shoal is defined by four positions (centroid 45°50.241'N 073°16.852'W) with a least depth of 10.0 metres. This notice cancels NW-C-0274-26 and is in force as Shoals number Q5083/26. Charted on chart 1311 (NAD83).
Navigate with caution and avoid the shoal area; consult chart 1311 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 20 May 2026, 13:51 UTC
In Force Shoals number Q5083/26 refers. - Hazards
- shoal, shallow depth
- Least depth
- 10 m (33 ft)
- Cancels
- NW-C-0274-26
- Charts
- 1311(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada104 NM from the area
- RCCJRCC TrentonCanada208 NM from the area
- RCCRCC BostonUnited States230 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM15 NM from the area
- DSCDSC Station Mont-St. BrunoJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM17 NM from the area
- DSCDSC Station MontrealJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM22 NM from the area
- DSCDSC Station L’AcadieJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM31 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM48 NM from the area
Generated automatically from the warning text on 28 Sept 2026, 16:22 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-1666-26
Date
2026-05-20 13:51 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0274-26
Areas
Montréal to Trois-Rivières
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
45 50.261N 073 16.840W
45 50.221N 073 16.860W
45 50.222N 073 16.864W
45 50.262N 073 16.844W
Depth: 10.0 metres
In Force Shoals number Q5083/26 refers.
Position
Centroid : 45° 50.241'N 073° 16.852'W
Pt 1: 45° 50.261'N 073° 16.840'W
Pt 2: 45° 50.221'N 073° 16.860'W
Pt 3: 45° 50.222'N 073° 16.864'W
Pt 4: 45° 50.262'N 073° 16.844'W
Charts
1311(NAD83)