HomeMapSky mapAlpha
More
Account
Loading…
Language: English
I am the creator and developer of SeaLagom.

NW-M-1497-26

Big Island light buoy HR4 reported missing off Southwestern Shore

ActiveReceived 17 Oct 2026, 00:00 UTC

Warning text

Positions open on the map
NW-M-1497-26 Date 2026-10-17 17:14 UTC Status Published Title Aids to Navigation Areas Southwestern Shore Categories Buoys Aids Big Island light buoy HR4 LL 505.2 Description Missing Position 44° 28.796'N 063° 35.223'W Charts 4385(NAD83)

Analysis

Active

Big Island light buoy HR4 (LL 505.2) is reported missing near 44° 28.796'N 063° 35.223'W. Reported 2026-10-17 17:14 UTC. Mariners should be aware that the aid to navigation is not present and navigate with caution in the area.

Navigate with caution in the vicinity and account for the missing aid when plotting courses.

Type
Aids to navigation · severity low
Feed
Aids to navigationAll warnings of this kind on the map, or as an API feed.
Location
Southwestern Shore
Validity
From 17 Oct 2026, 17:14 UTC
Date 2026-10-17 17:14 UTC
Hazards
buoy missing, aid to navigation absent

Coast stations for this area

Aids to navigation affected

  • MissingBig Island light buoy HR4 LL 505.2 · LL 505.2 · HR4 · 44° 28.796'N 063° 35.223'W

No aids-to-navigation list in the database yet; aids are shown as the warning names them.

Worked out automatically from the warning text on 17 Oct 2026, 17:37 UTC. It can be wrong: the official warning text is the authority.

Beta look