Location
Codes & time
America/Toronto
Now: UTC-4
Standard: UTC-5
DST from 08 Mar 2026 03:00 EDT; standard time from 01 Nov 2026 02:00 EST
Contacts
No contacts researched for Cornwall yet. The rescue centre and VHF 16 below always apply.
Nearest rescue centre...
VHF 16distress, safety and calling (156.800 MHz)DSC 70digital selective calling
Active warnings near Cornwall
Loading…
Catalogue harbor data
- Area
- Lake Ontario; Great Lakes
- Channel depth (m)
- 7.9
- Harbor size (World Port Index)
- Very Small
- Harbor type
- Canal or Lake
- Shelter
- Excellent
Warnings mentioning this port
Active and archived NAVAREA / coastal messages that reference Cornwall in their text.
NW-C-4582-26 - NW-C-4582-26
CoastalGreat Lakes
NW-C-4582-26 Date 2026-10-30 05:52 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Kingston to Cornwall Categories MCTS VHF Services Surveillance Systems Description Prescott MCTS. All services located at Cardinal operating intermittently. Position (Card
NW-C-4597-26 - NW-C-4597-26
CoastalGreat Lakes
NW-C-4597-26 Date 2026-10-30 20:29 UTC Status Published Title Shallow Depth Reported Areas Kingston to Cornwall Vicinity Cape Vincent Categories Shallow Depth Reported Description Shallow depths reported at: 44 07.835N 076 20.194W, 3.7 metres 44 07.838N 076 20.262W, 3.4 metres Po
NW-C-4601-26 - NW-C-4601-26
CoastalGreat Lakes
NW-C-4601-26 Date 2026-10-30 21:37 UTC Status Published Title Shallow Depth Reported Areas Kingston to Cornwall Vicinity Ogdensburg Categories Shallow Depth Reported Description Shallow depths reported at: 44 42.004N 075 29.887W, 0.7 metres 44 42.364N 075 29.281W, 3.9 metres Posi
NW-C-4602-26 - NW-C-4602-26
CoastalGreat Lakes
NW-C-4602-26 Date 2026-10-30 22:00 UTC Status Published Title Shallow Depth Reported Areas Kingston to Cornwall Vicinity Ogdensburg Categories Shallow Depth Reported Description Shallow depth reported at 44 41.997N 075 29.897W, 0.7 metres Position 44° 41.997'N 075° 29.897'W Char
NW-C-4508-26 - NW-C-4508-26
CoastalGreat Lakes
NW-C-4508-26 Date 2026-10-26 23:42 UTC Status Published Title Obstruction - Jug Cancels NW-C-2090-26 Areas Kingston to Cornwall Vicinity Brockville Categories Obstruction (Other) Description Plastic jug marking the shipwreck "Muscallonge" at 44 36.290N 075 39.192W Position Charts
NW-C-4507-26 - NW-C-4507-26
CoastalGreat Lakes
NW-C-4507-26 Date 2026-10-26 23:40 UTC Status Published Title Obstruction - Jug Areas Kingston to Cornwall Vicinity Brockville Categories Obstruction (Other) Description Two plastic jugs marking the shipwreck "Robert Gaskin" at 44 35.358N 075 40.625W. Position Charts 1435(WGS84)
NW-C-4506-26 - NW-C-4506-26
CoastalGreat Lakes
NW-C-4506-26 Date 2026-10-26 23:39 UTC Status Published Title Obstruction - Jug Cancels NW-C-2092-26 Areas Kingston to Cornwall Vicinity Brockville Categories Obstruction (Other) Description Plastic jug marking the shipwreck "Lillie Parsons" at 44 33.332N 075 43.122W. Position Ch
NW-C-4502-26 - NW-C-4502-26
CoastalGreat Lakes
NW-C-4502-26 Date 2026-10-26 23:33 UTC Status Published Title Obstruction - Jug Areas Kingston to Cornwall Vicinity Brockville Categories Obstruction (Other) Description Two plastic jugs marking the shipwreck "Henry C. Daryaw" at 44 31.567N 075 45.755W. Position Charts 1435(WGS84
NW-C-4503-26 - NW-C-4503-26
CoastalGreat Lakes
NW-C-4503-26 Date 2026-10-26 23:35 UTC Status Published Title Obstruction - Jug Cancels NW-C-2093-26 Areas Kingston to Cornwall Vicinity Hill Island Categories Obstruction (Other) Description Plastic jug marking the shipwreck "Ash Island barge" at 44 21.487N 075 59.803W. Position
NW-C-4505-26 - NW-C-4505-26
CoastalGreat Lakes
NW-C-4505-26 Date 2026-10-26 23:37 UTC Status Published Title Obstruction - Jug Cancels NW-C-2091-26 Areas Kingston to Cornwall Vicinity Brockville Categories Obstruction (Other) Description Brockville Fireworks Barge mooring buoy replaced with a white plastic jug at 44 35.298N 0
NW-C-4504-26 - NW-C-4504-26
CoastalGreat Lakes
NW-C-4504-26 Date 2026-10-26 23:36 UTC Status Published Title Obstruction - Jug Areas Kingston to Cornwall Vicinity Rockport Categories Obstruction (Other) Description Two plastic jugs marking the shipwreck "Kinghorn" at 44 22.600N 075 55.800W. Position Charts 1436(WGS84), 1437(W
NW-C-3042-26 - NW-C-3042-26
CoastalSt. Lawrence
NW-C-3042-26 Date 2026-07-17 18:23 UTC Status Published Title Obstruction - Dock Areas Cornwall to Montréal - east Vicinity Île Norbert-Aubé Categories Obstruction (Other) Description Wooden dock 2 metres by 4 metres with rope in the water reported aground in the vicinity of 45 3
NW-C-4612-26 - NW-C-4612-26
CoastalGreat Lakes· Archived
NW-C-4612-26 Date 2026-10-31 16:04 UTC To 2026-11-01 23:00 UTC Status Published Title Opening of temporary bridge Areas Kingston to Cornwall Vicinity Cataraqui River Categories Bridge Description The LaSalle Causeway bridge at 44 14.079N 076 28.462W is open to navigation from 011
NW-C-4556-26 - NW-C-4556-26
CoastalGreat Lakes· Archived
NW-C-4556-26 Date 2026-10-29 11:15 UTC To 2026-10-31 19:00 UTC Status Published Title Routeing Change Areas Kingston to Cornwall Vicinity Cornwall Categories Opening or Closing of Waterway Description Overhead hydro line reconstruction work taking place at the Saunders Hydro Elec
NW-C-2168-26 - NW-C-2168-26
CoastalGreat Lakes· Archived
NW-C-2168-26 Date 2026-06-05 16:53 UTC Status Published Title Shallow Depth Confirmed Areas Kingston to Cornwall Vicinity Maitland Categories Shallow Depth Confirmed Description Shallow depth confirmed at 44 36.885N 075 37.315W at 051643 UTC Jun 2026. Depth 3.6 metres. Position 4
NW-C-4555-26 - NW-C-4555-26
CoastalGreat Lakes· Archived
NW-C-4555-26 Date 2026-10-29 07:43 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity American Narrows Categories Buoys Description St. Lawrence Seaway Light 209, U.S. LL 1430, Unlit. Position Charts 1437(WGS84)
NW-C-4509-26 - NW-C-4509-26
CoastalGreat Lakes· Archived
NW-C-4509-26 Date 2026-10-27 02:33 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Kingston to Cornwall Categories MCTS VHF Services Surveillance Systems Description Prescott MCTS. All services located at Cardinal operating intermittently. Position (Card
NW-C-2093-26 - NW-C-2093-26
CoastalGreat Lakes· Archived
NW-C-2093-26 Date 2026-06-02 17:36 UTC Status Published Title Aids to Navigation Cancels NW-C-3473-25 Areas Kingston to Cornwall Vicinity Ash Island Categories Buoys Description Privately maintained orange and white mooring buoy marking the shipwreck "Ash Island barge" placed for
NW-C-2091-26 - NW-C-2091-26
CoastalGreat Lakes· Archived
NW-C-2091-26 Date 2026-06-02 17:35 UTC Status Published Title Aids to Navigation Cancels NW-C-3474-25 Areas Kingston to Cornwall Vicinity Brockville Categories Buoys Description Orange and white mooring buoy with flashing amber light and radar reflector marking "Brockville Firewo
NW-C-2090-26 - NW-C-2090-26
CoastalGreat Lakes· Archived
NW-C-2090-26 Date 2026-06-02 17:35 UTC Status Published Title Aids to Navigation Cancels NW-C-3472-25 Areas Kingston to Cornwall Vicinity Brockville Categories Buoys Aids Muskallonge mooring buoy MUSK Description Privately maintained orange and white mooring buoy with flashing am
NW-C-2092-26 - NW-C-2092-26
CoastalGreat Lakes· Archived
NW-C-2092-26 Date 2026-06-02 17:35 UTC Status Published Title Aids to Navigation Cancels NW-C-3469-25 Areas Kingston to Cornwall Vicinity Brockville Categories Buoys Aids Lillie Parson mooring buoy PARS Description Privately maintained orange and white mooring buoy marking the sh
NW-C-4440-26 - NW-C-4440-26
CoastalGreat Lakes· Archived
NW-C-4440-26 Date 2026-10-21 23:12 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Morrisburg Categories Lights Aids Doran Shoal range front light LL 242.5 Description Front Light Unlit Position 44° 56.038'N 075° 06.726'W Charts 1434(WGS84)
NW-C-4441-26 - NW-C-4441-26
CoastalGreat Lakes· Archived
NW-C-4441-26 Date 2026-10-22 10:03 UTC Status Published Title Routeing Change Areas Kingston to Cornwall Vicinity Brockville Categories Opening or Closing of Waterway Description Navigation suspended in the Brockville Narrows due to fog. Position Centroid : 44° 34.017'N 075° 42.
NW-C-3840-26 - NW-C-3840-26
CoastalGreat Lakes· Archived
NW-C-3840-26 Date 2026-09-01 20:16 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Wood Island Categories Buoys Description Buoy H15/1 temporarily established at 44 21.471N 075 59.754W. Buoy is green with flashing characteristics Q G 1s. Position
NW-C-4394-26 - NW-C-4394-26
CoastalGreat Lakes· Archived
NW-C-4394-26 Date 2026-10-17 16:03 UTC To 2026-10-18 22:00 UTC Status Published Title Opening of temporary bridge Areas Kingston to Cornwall Vicinity Cataraqui River Categories Bridge Description The LaSalle Causeway bridge at 44 14.079N 076 28.462W is open to navigation from 181
NW-C-4329-26 - NW-C-4329-26
CoastalGreat Lakes· Archived
NW-C-4329-26 Date 2026-10-14 07:04 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Cardinal Categories Lights Aids Galop Island East range rear light U.S. LL 815 Description Rear Light Unlit Position 44° 46.444'N 075° 23.184'W Charts 1434(WGS84)
NW-C-4328-26 - NW-C-4328-26
CoastalGreat Lakes· Archived
NW-C-4328-26 Date 2026-10-14 07:03 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Cardinal Categories Lights Aids Galop Island East range front light U.S. LL 810 Description Front Light Unlit Position 44° 46.635'N 075° 22.897'W Charts 1434(WGS8
NW-C-4316-26 - NW-C-4316-26
CoastalGreat Lakes· Archived
NW-C-4316-26 Date 2026-10-12 16:02 UTC To 2026-10-13 22:00 UTC Status Published Title Opening of temporary bridge Areas Kingston to Cornwall Vicinity Cataraqui River Categories Bridge Description The LaSalle Causeway bridge at 44 14.079N 076 28.462W is open to navigation from 131
NW-C-4181-26 - NW-C-4181-26
CoastalGreat Lakes· Archived
NW-C-4181-26 Date 2026-10-01 13:19 UTC To 2026-10-09 22:00 UTC Status Published Title Special Operations Cancels NW-C-4180-26 Areas Kingston to Cornwall Lake Ontario Vicinity Kingston Categories SAR Exercise Description Coast Guard exercise taking place from 051200 UTC Oct 2026 u
NW-C-4230-26 - NW-C-4230-26
CoastalGreat Lakes· Archived
NW-C-4230-26 Date 2026-10-05 19:45 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Long Sault Categories Buoys Aids Mille Roche Power House mooring buoy MILLE Description Mooring buoys marking the shipwreck "Mille Roche Power House" lifted for wi
NW-C-4228-26 - NW-C-4228-26
CoastalGreat Lakes· Archived
NW-C-4228-26 Date 2026-10-05 18:41 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Lakeview Heights Categories Buoys Description Privately maintained orange and white mooring buoy marking the submerged site 'Belly Dumper' lifted for winter. Posit
NW-C-4068-26 - NW-C-4068-26
CoastalGreat Lakes· Archived
NW-C-4068-26 Date 2026-09-22 10:55 UTC Status Published Title Special Operations Areas Kingston to Cornwall Vicinity Prescott to Cardinal Categories Hydrographic Survey Activity Description Bathymetric survey operations taking place at ice boom locations between Prescott and Card
NW-C-4278-26 - NW-C-4278-26
CoastalGreat Lakes· Archived
NW-C-4278-26 Date 2026-10-08 13:48 UTC To 2026-10-08 18:00 UTC Status Published Title Anti Pollution Exercise Areas Kingston to Cornwall Vicinity Kingston Categories Anti Pollution Exercise Description Anti pollution exercise underway in the vicinity of Kingston and Wolfe Island
NW-C-4271-26 - NW-C-4271-26
CoastalGreat Lakes· Archived
NW-C-4271-26 Date 2026-10-07 20:41 UTC Status Published Title Anti Pollution Exercise Cancels NW-C-4255-26 Areas Kingston to Cornwall Vicinity Treasure Island Categories Anti Pollution Exercise Description Anti pollution exercise underway in the vicinity of Treasure Island. Three
NW-C-4239-26 - NW-C-4239-26
CoastalGreat Lakes· Archived
NW-C-4239-26 Date 2026-10-06 16:22 UTC Status Published Title Obstruction - ferry Areas Kingston to Cornwall Vicinity Dawson Point Categories Obstruction (Other) Description Exercise, Exercise, Exercise Ferry Wolfe Islander III, 61 metres in length reported aground at 44 12.917N
NW-C-4255-26 - NW-C-4255-26
CoastalGreat Lakes· Archived
NW-C-4255-26 Date 2026-10-07 14:47 UTC Status Published Title Anti Pollution Exercise Areas Kingston to Cornwall Vicinity Milton Island Categories Anti Pollution Exercise Description Anti pollution exercise underway in the vicinity of Milton Island. Three orange buoys deployed. P
NW-C-4193-26 - NW-C-4193-26
CoastalGreat Lakes· Archived
NW-C-4193-26 Date 2026-10-01 23:23 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Cardinal Categories Lights Aids Galop Island East range front light U.S. LL 810 Description Unlit Position 44° 46.635'N 075° 22.897'W Charts 1434(WGS84), 1435(WGS
NW-C-3003-26 - NW-C-3003-26
CoastalGreat Lakes· Archived
NW-C-3003-26 Date 2026-07-15 22:23 UTC Status Published Title Aids to Navigation Areas Cornwall to Montréal - west Vicinity Stonehouse Point Categories Buoys Description Privately maintained orange and white mooring buoy marking the shipwreck "Fred Mercur" placed for the season.
NW-C-2367-26 - NW-C-2367-26
CoastalGreat Lakes· Archived
NW-C-2367-26 Date 2026-06-15 16:29 UTC Status Published Title Aids to Navigation Areas Kingston to Cornwall Vicinity Ault Island Categories Buoys Description Privately maintained orange and white mooring buoy marking the shipwreck "Eastcliffe Hall" placed for the navigational sea
NW-C-4206-26 - NW-C-4206-26
CoastalGreat Lakes· Archived
NW-C-4206-26 Date 2026-10-03 16:02 UTC To 2026-10-04 22:00 UTC Status Published Title Opening of temporary bridge Areas Kingston to Cornwall Vicinity Cataraqui River Categories Bridge Description The LaSalle Causeway bridge at 44 14.079N 076 28.462W is open to navigation from 041