Yellow Watch – Severe Thunderstorm In Ottawa Triggers Driving Disruptions
Environment Canada has issued a Yellow Watch – Severe Thunderstorm for Ottawa on Mon. March 16, 2026, and Carleton University is advising its community that conditions are favourable for the development of severe thunderstorms that may bring strong wind gusts, large hail and heavy rain.
Yellow Watch – Severe Thunderstorm: Scope and Timing
The watch covers the Ottawa region for the day specified and warns that severe thunderstorms are possible this afternoon as a sharp cold front moves through the area. The advisory characterizes the atmosphere as conducive to storms that could intensify, while emphasizing that exact storm tracks and intensity remain subject to change as conditions evolve.
Risks to Travel, Utilities and Property
Authorities have highlighted several hazards associated with the watch. Primary threats listed include strong wind gusts, large hail and heavy rainfall. Those conditions can combine to create difficult driving conditions and localized hazards for people on the road.
- Strong wind gusts that could produce fallen branches and other debris;
- Large hail and heavy rain that may damage vehicles and structures;
- Potential for local utility outages and damage to roofs, fences or soft shelters.
Officials note that the possibility of roof and fence damage, as well as fallen branches, means property owners should be prepared for minor structural impacts and intermittent service interruptions. The degree of impact will depend on where storms develop and their intensity.
Campus Guidance and Next Steps
Carleton University has stated the campus will remain open and that operations are running as scheduled. Students, faculty and staff are encouraged to continue monitoring the Current Students weather page for updates and to exercise caution when traveling to and commuting on campus. Community members are advised to plan for slower travel and to take basic precautions to secure outdoor items that could be affected by wind or hail.
The situation is being monitored and may be updated as storms develop. Community members should follow forecast updates and be prepared to alter travel plans if conditions deteriorate.
