NW-C-1121-26
PAN PANReceived: 29 Apr 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveShoal (10.0 m) reported between Trois-Rivières and Donnacona
A shoal with least depth 10.0 m has been confirmed in the area between Trois-Rivières and Donnacona. The shoal is bounded by four positions with centroid 46°30.473'N 072°13.748'W. Charts 1313(NAD83) and 1314(NAD83) are affected. This message cancels NW-C-0315-26.
Navigate with caution and avoid the shoal area shown on charts 1313(NAD83) and 1314(NAD83).
- 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
- Trois-Rivières to Donnacona
- Validity
- From 29 Apr 2026, 20:39 UTC
Date 2026-04-29 20:39 UTC. In Force Shoals number Q5015/26 refers. - Hazards
- shoal, shallow depth 10.0 m
- Least depth
- 10 m (33 ft)
- Cancels
- NW-C-0315-26
- Charts
- 1313(NAD83), 1314(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada46 NM from the area
- RCCRCC BostonUnited States255 NM from the area
- RCCJRCC TrentonCanada266 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM11 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM35 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM46 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM46 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM48 NM from the area
Generated automatically from the warning text on 28 Sept 2026, 17:17 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-1121-26
Date
2026-04-29 20:39 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0315-26
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 30.568N 72 13.683W
46 30.370N 72 13.775W
46 30.378N 72 13.812W
46 30.576N 72 13.720W
Depth: 10.0m
In Force Shoals number Q5015/26 refers.
Position
Centroid : 46° 30.473'N 072° 13.748'W
Pt 1: 46° 30.568'N 072° 13.683'W
Pt 2: 46° 30.370'N 072° 13.775'W
Pt 3: 46° 30.378'N 072° 13.812'W
Pt 4: 46° 30.576'N 072° 13.720'W
Charts
1313(NAD83),
1314(NAD83)