Sarnia

Name: Sarnia
Address: Canada

CanadaCA SNI

Small harborNAVAREA IV

Post resource

Location

Codes & time

UN/LOCODE

CA SNI

Coordinates (DMS)

42-59.0N 082-25.0W

Decimal (maps)

42.983333 -82.416667

Time zone

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 Sarnia yet. The rescue centre and VHF 16 below always apply.

Emergency

Nearest rescue centre...

VHF 16distress, safety and calling (156.800 MHz)DSC 70digital selective calling

Active warnings near Sarnia

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Catalogue harbor data

Area: Lake Saint Clair; Great Lakes
Channel depth (m): 4.9
Anchorage depth (m): 7.9
Harbor size (World Port Index): Small
Harbor type: River (Natural)
Shelter: Excellent

Warnings mentioning this port

Active and archived NAVAREA / coastal messages that reference Sarnia in their text.

NW-C-4314-26 - NW-C-4314-26
CoastalGreat Lakes· Archived
NW-C-4314-26 Date 2026-10-12 13:23 UTC To 2026-10-16 21:00 UTC Status Published Title MCTS VHF Services Areas North Channel Categories MCTS VHF Services Description Sarnia MCTS. All services located at Silver Water operating intermittently from 1330 UTC until 2000 UTC from 12 Oct
NW-C-4169-26 - NW-C-4169-26
CoastalGreat Lakes· Archived
NW-C-4169-26 Date 2026-09-29 20:57 UTC Status Published Title MCTS RADAR Areas Lake Huron St. Clair River Categories Surveillance Systems Description Sarnia MCTS. RADAR located at Point Edward inoperative 291929 UTC Sep 2026. Position 43° 00.050'N 082° 25.083'W
NW-C-4142-26 - NW-C-4142-26
CoastalGreat Lakes· Archived
NW-C-4142-26 Date 2026-09-28 10:32 UTC To 2026-10-02 20:30 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Erie Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All services located at Leamington operating intermittently da
NW-C-3966-26 - NW-C-3966-26
CoastalGreat Lakes· Archived
NW-C-3966-26 Date 2026-09-14 11:05 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Superior Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All services located at Rabbit Mountain operating intermittently 141300 UTC Sep 20
NW-C-4060-26 - NW-C-4060-26
CoastalGreat Lakes· Archived
NW-C-4060-26 Date 2026-09-21 10:36 UTC To 2026-09-25 20:30 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Erie Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All services located at Leamington operating intermittently da
NW-C-3963-26 - NW-C-3963-26
CoastalGreat Lakes· Archived
NW-C-3963-26 Date 2026-09-14 08:46 UTC Status Published Title Aids to Navigation Areas Lake Huron Vicinity Sarnia Categories Buoys Description Lake Huron Cut lighted buoy 3, U.S. LL 10045, Unlit. Position 43° 01.786'N 082° 25.055'W Charts 14865(NAD83)
NW-C-3053-26 - NW-C-3053-26
CoastalGreat Lakes· Archived
NW-C-3053-26 Date 2026-07-18 18:36 UTC Status Published Title MCTS RADAR Areas Lake Huron St. Clair River Vicinity Point Edward Categories Surveillance Systems Description Sarnia MCTS. RADAR located at Point Edward inoperative 181830 UTC Jul 2026. Position 43° 00.050'N 082° 25.0
NW-C-3961-26 - NW-C-3961-26
CoastalGreat Lakes· Archived
NW-C-3961-26 Date 2026-09-14 02:34 UTC To 2026-09-18 21:00 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Erie Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All transmit and receive services located at Rondeau operating
NW-C-3918-26 - NW-C-3918-26
CoastalGreat Lakes· Archived
NW-C-3918-26 Date 2026-09-09 11:34 UTC To 2026-09-11 21:00 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Erie Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All services located at Rondeau operating intermittently daily
NW-C-3682-26 - NW-C-3682-26
CoastalGreat Lakes· Archived
NW-C-3682-26 Date 2026-08-24 10:30 UTC To 2026-09-04 21:00 UTC Status Published Title MCTS VHF Services Areas Georgian Bay Vicinity Meaford Categories MCTS VHF Services Description Sarnia MCTS. All services located at Meaford operating intermittently weekdays from 1200 UTC until
NW-C-3493-26 - NW-C-3493-26
CoastalGreat Lakes· Archived
NW-C-3493-26 Date 2026-08-11 13:37 UTC To 2026-08-16 23:00 UTC Status Published Title Routeing Change Areas Lake Huron St. Clair River Vicinity Port Huron Categories Opening or Closing of Waterway Description An unsanctioned marine event is planned for the St. Clair River beginni
NW-C-3545-26 - NW-C-3545-26
CoastalGreat Lakes· Archived
NW-C-3545-26 Date 2026-08-13 19:07 UTC To 2026-08-14 02:00 UTC Status Published Title Special Operations Areas St. Clair River Vicinity Sarnia Categories SAR Exercise Description Search and rescue exercise taking place from 132200 UTC Aug 2026 until 140100 UTC Aug 2026 at Governm
NW-C-3387-26 - NW-C-3387-26
CoastalGreat Lakes· Archived
NW-C-3387-26 Date 2026-08-05 10:35 UTC To 2026-08-12 20:30 UTC Status Published Title MCTS VHF Services Areas Whitefish Bay Categories MCTS VHF Services Description Sarnia MCTS. All transmit and receive services located at Sault Ste. Marie operating intermittently from 051230 UTC
NW-C-3349-26 - NW-C-3349-26
CoastalGreat Lakes· Archived
NW-C-3349-26 Date 2026-08-03 10:06 UTC To 2026-08-07 21:00 UTC Status Published Title MCTS VHF Services Areas Lake Huron Categories MCTS VHF Services Description Sarnia MCTS. All transmit and receive services located at Tobermory operating intermittently from 031200 UTC Aug 2026
NW-C-3414-26 - NW-C-3414-26
CoastalGreat Lakes· Archived
NW-C-3414-26 Date 2026-08-06 12:42 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Superior Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All services located at Horn operating intermittently 061104 UTC Aug 2026. Positio
NW-C-3210-26 - NW-C-3210-26
CoastalGreat Lakes· Archived
NW-C-3210-26 Date 2026-07-28 10:54 UTC To 2026-07-31 20:30 UTC Status Published Title MCTS VHF Services - Surveillance Systems Areas Lake Superior Categories MCTS VHF Services Surveillance Systems Description Sarnia MCTS. All services located at Horn operating intermittently dail
NW-C-3161-26 - NW-C-3161-26
CoastalGreat Lakes· Archived
NW-C-3161-26 Date 2026-07-25 07:01 UTC To 2026-07-27 00:00 UTC Status Published Title Routeing Change Areas St. Clair River Vicinity Courtright Categories Regatta or Race Description Power boat race taking place on the St. Clair river beginning 251700 UTC Jul 2026 until 252100 UT
NW-C-3004-26 - NW-C-3004-26
CoastalGreat Lakes· Archived
NW-C-3004-26 Date 2026-07-16 01:32 UTC Status Published Title MCTS RADAR Areas Lake Huron St. Clair River Categories Surveillance Systems Description Sarnia MCTS. RADAR located at Point Edward inoperative 160125 UTC Jul 2026. Position 43° 00.050'N 082° 25.083'W Charts 14865(NAD8
NW-C-2971-26 - NW-C-2971-26
CoastalGreat Lakes· Archived
NW-C-2971-26 Date 2026-07-14 10:31 UTC Status Published Title MCTS VHF Services Areas Lake Superior Categories MCTS VHF Services Description Sarnia MCTS. Transmit and receive services located at Bald Head operating intermittently from 141230 UTC Jul 2026 until 161930 UTC Jul 2026