Canadian Lightning Danger Map - Canada

The Canadian Lightning Danger Map (CLDM) represents areas at greatest risk of being struck by lightning in the next 10 minutes. Times are expressed in Coordinated Universal Time (UTC). The interval between maps is 10 minutes. Please re-fresh your browser to ensure you have the latest map. Learn more about the Canadian Lightning Danger Map.

Lightning - Canada


Lightning Legend
  • Lightning is striking in the red areas; you are in immediate danger if outdoors
  • Go to a safe location, either a building with plumbing and wiring or an all metal vehicle
  • Stay there for 30 minutes following the last rumble of thunder

Information about Lightning

In our Lightning in Canada section, you'll find more information including a lightning safety video, myths and facts about lightning, and a series of maps showing where lightning occurs most frequently in Canada.

Arctic Pacific Prairies Ontario Quebec Atlantic