FreighterLog The record of Great Lakes shipping

Archive: January 2024 to December 2025, 28,207 passages. Seaway transits checked hourly. Last checked 2026-09-23 18:00 UTC — 14:00 EDT. NOAA publishes in quarterly batches, and the archive currently runs nine months behind.

Archive to December 2025 · Seaway checked 2026-09-23 18:00 UTC — 14:00 EDT

Observed lakes vessel

Leo A McArthur

No fleet affiliation on record · Tanker · 152 m. Range: Lakes and Seaway. 46 recorded passages across 2 chokepoints.

Last recorded passage

downbound at Welland Canal (Thorold)

24 Dec 2025, 19:36 EST — ±15 min · see the December 2025 log

This is an archive, not a tracker. The passage record runs January 2024 to December 2025 and ends at 31 Dec 2025. The public AIS archive arrives in quarterly batches and currently runs nine months behind. Nothing on this page tells you where Leo A McArthur is today. Her last recorded passage was 7 days before the archive ends, and that gap is about the record, not necessarily about the ship.

FreighterLog is the record, not the map. For where Leo A McArthur is right now, see BoatNerd's live AIS map, which runs on their own receivers on the lakes, or VesselFinder.

Follow by RSS. Every crossing Leo A McArthur makes goes into a feed of her own, added when the next batch of the public AIS archive is processed. It is a file on this domain: no account, no email address, and nothing that reports back. Leo A McArthur feed · all chokepoints

Specification

Dimensions and identifiers as broadcast over AIS; AIS-reported figures are self-declared by the vessel and are not a registry of record.
Name (AIS) LEO A MCARTHUR
MMSI 316013946
IMO IMO9473262
Call sign CFN5313
Length overall 152 m (499 ft)
Beam 22 m (72 ft)
AIS vessel type Tanker
Hull type —
Operator No fleet match (salty, unaffiliated hull, or an AIS spelling this roster has not yet folded in)
Flag —

Passage record

  • 46 Passages January 2024 – December 2025
  • 2 Chokepoints of 7 monitored
  • 30 Mar 2024 First in archive UTC date
  • 25 Dec 2025 Last in archive UTC date

Where she was recorded

Season passage log

Local time at each chokepoint · grouped by month (UTC buckets)

Times are interpolated from AIS track samples, good to about fifteen minutes, and shown in each chokepoint's local time. A passage is a track crossing our gate line, not an official lock record.

2025 season

December 2025 3 passages
Date Local time Chokepoint Direction
24 Dec 2025 19:36 EST Welland Canal (Thorold) downbound
22 Dec 2025 18:57 EST Welland Canal (Thorold) upbound
13 Dec 2025 18:48 EST Welland Canal (Thorold) downbound
November 2025 1 passage
Date Local time Chokepoint Direction
22 Nov 2025 11:56 EST Welland Canal (Thorold) upbound
October 2025 1 passage
Date Local time Chokepoint Direction
1 Oct 2025 03:08 EDT Welland Canal (Thorold) downbound
September 2025 5 passages
Date Local time Chokepoint Direction
24 Sep 2025 14:47 EDT Welland Canal (Thorold) upbound
19 Sep 2025 05:39 EDT Welland Canal (Thorold) downbound
17 Sep 2025 21:49 EDT Detroit River / Ambassador Bridge downbound
15 Sep 2025 04:53 EDT Detroit River / Ambassador Bridge upbound
12 Sep 2025 06:32 EDT Welland Canal (Thorold) upbound
August 2025 2 passages
Date Local time Chokepoint Direction
24 Aug 2025 16:23 EDT Welland Canal (Thorold) downbound
20 Aug 2025 17:23 EDT Welland Canal (Thorold) upbound
June 2025 2 passages
Date Local time Chokepoint Direction
23 Jun 2025 11:01 EDT Welland Canal (Thorold) downbound
5 Jun 2025 22:53 EDT Welland Canal (Thorold) upbound
May 2025 1 passage
Date Local time Chokepoint Direction
2 May 2025 23:57 EDT Welland Canal (Thorold) downbound
April 2025 3 passages
Date Local time Chokepoint Direction
26 Apr 2025 07:08 EDT Welland Canal (Thorold) upbound
23 Apr 2025 12:21 EDT Welland Canal (Thorold) downbound
17 Apr 2025 16:40 EDT Welland Canal (Thorold) upbound

2024 season

December 2024 4 passages
Date Local time Chokepoint Direction
28 Dec 2024 05:28 EST Welland Canal (Thorold) downbound
26 Dec 2024 22:56 EST Detroit River / Ambassador Bridge downbound
22 Dec 2024 10:49 EST Detroit River / Ambassador Bridge upbound
20 Dec 2024 19:52 EST Welland Canal (Thorold) upbound
November 2024 4 passages
Date Local time Chokepoint Direction
23 Nov 2024 04:37 EST Welland Canal (Thorold) downbound
21 Nov 2024 21:45 EST Detroit River / Ambassador Bridge downbound
20 Nov 2024 12:43 EST Detroit River / Ambassador Bridge upbound
16 Nov 2024 22:12 EST Welland Canal (Thorold) upbound
October 2024 2 passages
Date Local time Chokepoint Direction
14 Oct 2024 00:22 EDT Welland Canal (Thorold) downbound
9 Oct 2024 07:22 EDT Welland Canal (Thorold) upbound
September 2024 4 passages
Date Local time Chokepoint Direction
14 Sep 2024 06:48 EDT Welland Canal (Thorold) downbound
12 Sep 2024 14:49 EDT Detroit River / Ambassador Bridge downbound
9 Sep 2024 16:04 EDT Detroit River / Ambassador Bridge upbound
8 Sep 2024 07:22 EDT Welland Canal (Thorold) upbound
June 2024 4 passages
Date Local time Chokepoint Direction
28 Jun 2024 15:20 EDT Welland Canal (Thorold) downbound
23 Jun 2024 18:10 EDT Welland Canal (Thorold) upbound
17 Jun 2024 19:33 EDT Welland Canal (Thorold) downbound
14 Jun 2024 18:16 EDT Detroit River / Ambassador Bridge downbound
May 2024 1 passage
Date Local time Chokepoint Direction
4 May 2024 14:45 EDT Welland Canal (Thorold) downbound
April 2024 7 passages
Date Local time Chokepoint Direction
30 Apr 2024 12:13 EDT Welland Canal (Thorold) upbound
25 Apr 2024 11:23 EDT Welland Canal (Thorold) downbound
20 Apr 2024 11:22 EDT Welland Canal (Thorold) upbound
14 Apr 2024 16:23 EDT Welland Canal (Thorold) downbound
9 Apr 2024 05:24 EDT Detroit River / Ambassador Bridge downbound
7 Apr 2024 02:51 EDT Detroit River / Ambassador Bridge upbound
2 Apr 2024 17:44 EDT Detroit River / Ambassador Bridge upbound
March 2024 2 passages
Date Local time Chokepoint Direction
31 Mar 2024 08:14 EDT Detroit River / Ambassador Bridge upbound
30 Mar 2024 03:09 EDT Welland Canal (Thorold) upbound