LNM09-3DA740
Received 26 Aug 2026, 00:00 UTCArchived 30 Sept 2026, 17:34 UTC
Warning text
Positions open on the mapLAKE HURON - LAKE MICHIGAN
General / MSIB
Location: 43-11.52N 087-37.66W 42-36.89N 087-33.52W 42-36.69N 087-36.81W 43-10.91N 087-43.30W 43-11.52N 087-37.66W Ocean Infinity is conducting surveying operations with an autonomous surface vessel (ASV) in Lake Michigan, approximately 6-12 miles off Milwaukee, WI, Waukegan, IL, and Chicago, IL. The ASV will be operating 24 hours a day, from August 26, 2026, through September 30, 2026. The ASV is 25 feet in length, yellow in color, has “UNCREWED” or “UNMANNED” marked on the hull, and identified via Automatic Identification System (AIS) as “UNCREWED” or “UNMANNED”. When the ASV is transiting to and from a harbor it will be followed by a chase vessel, the RV FLUID, the RV FLUID can be contacted via VHF radio channel 13 or 16. All mariners are requested to transit the operating areas with caution.
Valid 2026-08-26 to 2026-09-30.
USCG Great Lakes District Local Notice to Mariners 38/2026