NW-C-0993-26
Received: 23 Apr 2026, 00:00Updated: 1 Nov 2026, 12:53
analysis
ActiveScientific moorings with yellow buoys near Portneuf (Trois-Rivières to Donnacona)
Three temporary scientific moorings (XB01, XB03, XB05) have been established in the Portneuf area between Trois-Rivières and Donnacona. Positions are given for each mooring and they are marked by a yellow buoy with an amber flashing light and radar reflector. No end date or contact is provided.
Navigate with caution and keep a good lookout for mooring buoys marking the moorings.
- Type
- Survey operations · severity moderate
- Feed
- Survey operationsAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/survey/
- Location
- Trois-Rivières to Donnacona, vicinity Portneuf
- Validity
- From 23 Apr 2026, 00:43 UTC
Date 2026-04-23 00:43 UTC - Hazards
- scientific moorings, mooring buoys with flashing light and radar reflector
- Charts
- 1314(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada29 NM from the area
- RCCRCC BostonUnited States262 NM from the area
- RCCJRCC TrentonCanada284 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM18 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM29 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM29 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM31 NM from the area
- DSCDSC Station MontmagnyJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM58 NM from the area
Aids to navigation affected
- Newly establishedXB01 · amber flashing light, yellow buoy, radar reflector · 46° 40.786'N 071° 52.837'W (XB01)
- Newly establishedXB03 · amber flashing light, yellow buoy, radar reflector · 46° 40.825'N 071° 52.714'W (XB03)
- Newly establishedXB05 · amber flashing light, yellow buoy, radar reflector · 46° 40.889'N 071° 52.491'W (XB05)
No aids-to-navigation list in the database yet; aids are shown as the warning names them.
Generated automatically from the warning text on 28 Sept 2026, 17:28 UTC. It can be wrong: the original warning below is the authoritative text.
Message content
NW-C-0993-26
Date
2026-04-23 00:43 UTC
Status
Published
Title
Scientific Moorings
Areas
Trois-Rivières to Donnacona
Vicinity
Portneuf
Categories
Scientific Moorings
Description
The following scientific moorings have been temporarily established:
XB01
46 40.786N 071 52.837W
XB03
46 40.825N 071 52.714W
XB05
46 40.889N 071 52.491W
The moorings are marked with a yellow buoy equipped with an amber flashing light and radar reflector.
Position
46° 40.786'N 071° 52.837'W (XB01)
46° 40.825'N 071° 52.714'W (XB03)
46° 40.889'N 071° 52.491'W (XB05)
Charts
1314(NAD83)