NW-C-4423-26
Low water levels between Montréal and Sorel-Tracy on the St. Lawrence River
ActiveReceived 21 Oct 2026, 00:00 UTC
Warning text
Positions open on the mapNW-C-4423-26
Date
2026-10-21 14:18 UTC
Status
Published
Title
Low Water Level
Areas
Montréal to Trois-Rivières
Port of Montreal
Port of Sorel-Tracy
St. Lawrence
Categories
Low Water Level
Description
The water level is either below chart datum or will fluctuate back and forth between the upstream boundary of the Port of Montreal and Sorel.
Position
Centroid : 45° 40.480'N 073° 29.153'W
Pt 1: 46° 04.246'N 073° 12.398'W
Pt 2: 45° 59.912'N 073° 00.694'W
Pt 3: 45° 20.106'N 073° 29.305'W
Pt 4: 45° 28.689'N 074° 02.337'W
Charts
1310(NAD83),
1311(NAD83)
Location map
Open in the full mapAnalysis
ActiveWater level is reported at or below chart datum and may fluctuate between the upstream boundary of the Port of Montreal and Sorel-Tracy. The advisory covers the St. Lawrence River from Montréal to Trois-Rivières. Mariners should be aware of reduced under-keel clearance in the area. No end time is given.
Navigate with caution and allow for reduced under-keel clearance; consult local port authorities and updated depth information before transiting.
- Type
- Weather · severity moderate
- Location
- Montréal to Trois-Rivières; Port of Montreal; Port of Sorel-Tracy; St. Lawrence
- Validity
- From 21 Oct 2026, 14:18 UTC
The water level is either below chart datum or will fluctuate back and forth between the upstream boundary of the Port of Montreal and Sorel. - Hazards
- low water, water level at or below chart datum, fluctuating water levels
- Charts
- 1310(NAD83), 1311(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada117 NM from the area
- RCCJRCC TrentonCanada196 NM from the area
- RCCRCC BostonUnited States226 NM from the area
- DSCDSC Station Mont-St. BrunoJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM10 NM from the area
- DSCDSC Station MontrealJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM10 NM from the area
- DSCDSC Station L’AcadieJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM23 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM27 NM from the area
- DSCDSC Station Mont RigaudJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM37 NM from the area
Worked out automatically from the warning text on 21 Oct 2026, 14:27 UTC. It can be wrong: the official warning text is the authority.