NW-C-1130-26
PAN PANReceived: 29 Apr 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveShoal (10.9 m) located between Montréal and Trois-Rivières
A shoal with least depth 10.9 m has been discovered in the St. Lawrence River between Montréal and Trois-Rivières. The shoal is bounded by four positions (points provided) with centroid 46°16.706'N 072°36.610'W. Charted on chart 1313 (NAD83).
Navigate with caution, consult chart 1313 (NAD83) and avoid the shoal area.
- 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 29 Apr 2026, 20:44 UTC
Date 2026-04-29 20:44 UTC. In Force Shoals number Q5024/26 refers. - Hazards
- shoal, shallow depth 10.9 m
- Least depth
- 10.9 m (36 ft)
- Cancels
- NW-C-0267-26
- References
- Shoals number Q5024/26
- Charts
- 1313(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada66 NM from the area
- RCCRCC BostonUnited States245 NM from the area
- RCCJRCC TrentonCanada245 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM10 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM25 NM from the area
- DSCDSC Station Mont-St. BrunoJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM53 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM56 NM from the area
- DSCDSC Station MontrealJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM60 NM from the area
Generated automatically from the warning text on 28 Sept 2026, 17:18 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-1130-26
Date
2026-04-29 20:44 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0267-26
Areas
Montréal to Trois-Rivières
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 16.710N 072 36.598W
46 16.699N 072 36.619W
46 16.702N 072 36.621W
46 16.713N 072 36.601W
Depth: 10.9m
In Force Shoals number Q5024/26 refers.
Position
Centroid : 46° 16.706'N 072° 36.610'W
Pt 1: 46° 16.710'N 072° 36.598'W
Pt 2: 46° 16.699'N 072° 36.619'W
Pt 3: 46° 16.702'N 072° 36.621'W
Pt 4: 46° 16.713'N 072° 36.601'W
Charts
1313(NAD83)