Ottawa is bracing for another thunderstorm on Thursday, just days after a record-breaking downpour drenched the city. The storm is expected to bring heavy rain, strong winds, and potential flooding, according to Environment Canada.
Record-Breaking Rainfall and Ongoing Heat
The previous storm, which occurred earlier this week, dumped unprecedented amounts of rain, breaking decades-old records. The city saw widespread flooding, with some areas receiving over 100 millimeters of rain in a single day. The extreme weather has left many residents dealing with water damage and power outages.
In addition to the thunderstorms, heat warnings remain in effect across the region, with humidex values expected to reach the 40s. The combination of heat and humidity poses health risks, particularly for vulnerable populations.
Impact on Transportation and Infrastructure
The storms have disrupted public transportation, with OC Transpo service affected. Youth under 18 can ride for free this summer, but delays are expected due to weather conditions. REM service was also interrupted between Canora and Côte-de-Liesse due to a track problem.
Power companies are responding to large-scale blackouts caused by the storms. Ontario power utilities have been working to restore electricity to affected areas, but some outages may persist through the weekend.
Community Response and Safety Measures
Ottawa Mission CEO Peter Tilley discussed how the Mission is responding to the ongoing extreme heat event, providing shelter and cooling stations for those in need. Residents are advised to stay indoors during storms, avoid flooded areas, and check on neighbors, especially the elderly and those with health conditions.
"We're doing everything we can to keep people safe," Tilley said. "But we need the community to look out for each other during these extreme weather events."
Broader Weather Warnings Across Canada
The severe weather is not limited to Ottawa. Heat warnings have been issued across the Maritimes, with humidex values near 42 in Montreal. Southern Ontario is also sweltering under extreme heat, and flooding from a burst glacial lake in British Columbia is expected to peak as evacuation orders remain in place.
Environment Canada continues to monitor the situation and update warnings as necessary. Residents are urged to stay informed through official channels and take precautions to protect themselves and their property.



