NW-C-1671-26
Received: 20 May 2026, 00:00Updated: 1 Nov 2026, 23:08
analysis
ActiveShoal reported in Detroit River, depth 8.2 m
A shoal has been confirmed in the Detroit River with a least depth of 8.2 metres. The shoal is bounded by four positions given in the notice; centroid 42°08.367'N 083°07.467'W. The notice replaces NW-C-0340-26 and is shown on chart 14853 (NAD83). Mariners should note the new shoal and navigate with caution.
Navigate with caution and refer to updated chart information for the shoal position and depth.
- 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
- Detroit River
- Validity
- From 20 May 2026, 15:33 UTC
In Force - Hazards
- shoal, shallow depth
- Least depth
- 8.2 m (27 ft)
- Cancels
- NW-C-0340-26
- Charts
- 14853(NAD83)
Coast stations for this area
- RCCJRCC TrentonCanada272 NM from the area
- DSCDSC Station LeamingtonJRCC TrentonCanadaMMSI 003160030VHF 40range 40 NM21 NM from the area
- DSCDSC Station Grand PointeJRCC TrentonCanadaMMSI 003160030VHF 40range 40 NM35 NM from the area
- DSCDSC Station RondeauJRCC TrentonCanadaMMSI 003160030VHF 40range 40 NM59 NM from the area
- DSCDSC Station SarniaJRCC TrentonCanadaMMSI 003160030VHF 40range 40 NM67 NM from the area
- DSCDSC Station Port BurwellJRCC TrentonCanadaMMSI 003160030VHF 40range 40 NM113 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.
Keywords
- Geometry refsbounded, polygon
- Dangerous AreaDANGER
- Geometry phrasesarea bounded, bounded by
Message content
NW-C-1671-26
Date
2026-05-20 15:33 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0340-26
Areas
Detroit River
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
42 08.348N 083 07.470W
42 08.386N 083 07.470W
42 08.386N 083 07.464W
42 08.348N 083 07.465W
Depth: 8.2 metres
In Force Shoals number CNA1023/26 refers.
Position
Centroid : 42° 08.367'N 083° 07.467'W
Pt 1: 42° 08.348'N 083° 07.470'W
Pt 2: 42° 08.386'N 083° 07.470'W
Pt 3: 42° 08.386'N 083° 07.464'W
Pt 4: 42° 08.348'N 083° 07.465'W
Charts
14853(NAD83)