NW-C-4588-26
ArchivedReceived: 30 Oct 2026, 00:00Archived: 1 Nov 2026, 12:53Updated: 1 Nov 2026, 12:53
analysis
No longer in forceIce boom installation near Lavaltrie between Montréal and Trois-Rivières
An ice boom installation is taking place at Lavaltrie (centroid and four points given). Work is conducted daily from 1000 UTC until 2200 UTC. Upbound vessels are requested to produce minimum wake and navigate with caution in the area.
Maintain minimum wake if upbound; navigate with caution and keep clear of installation activity.
- Type
- Offshore operations · severity moderate
- Feed
- Offshore works, rigs and towing, IceAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/offshore/
- Location
- Montréal to Trois-Rivières, vicinity Lavaltrie
- Activity periods
- ? - ? (daily 1000-2200 UTC)
- Hazards
- installation works, ice boom in place, restricted manoeuvring space
- Charts
- 1311(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada104 NM from the area
- RCCJRCC TrentonCanada208 NM from the area
- RCCRCC BostonUnited States231 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM14 NM from the area
- DSCDSC Station Mont-St. BrunoJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM18 NM from the area
- DSCDSC Station MontrealJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM23 NM from the area
- DSCDSC Station L’AcadieJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM32 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM48 NM from the area
Generated automatically from the warning text on 30 Oct 2026, 16:37 UTC. It can be wrong: the original warning below is the authoritative text.
Message content
NW-C-4588-26
Date
2026-10-30 14:22 UTC
Status
Published
Title
Ice Boom - Installation
Areas
Montréal to Trois-Rivières
Vicinity
Lavaltrie
Categories
Ice Boom - Installation or Removal
Description
Lavaltrie ice boom installation taking place daily from 1000 UTC until 2200 UTC.
Minimum wake requested for upbound vessels.
Position
Centroid : 45° 51.156'N 073° 17.327'W
Pt 1: 45° 50.808'N 073° 17.190'W
Pt 2: 45° 50.985'N 073° 16.889'W
Pt 3: 45° 51.488'N 073° 17.444'W
Pt 4: 45° 51.349'N 073° 17.781'W
Charts
1311(NAD83)