Ottawa Thunderstorm Knocks Out Power to Thousands Overnight

Ottawa got a rough wake-up call this morning after a severe thunderstorm rolled through the region overnight, knocking out power to thousands of homes and businesses across the city.

What happened

Strong winds, heavy rain, and lightning battered the capital, with the storm strong enough to snap tree limbs and send debris into hydro lines in several neighbourhoods. By early morning, outage maps showed clusters of affected customers scattered across the city, with crews working to assess the damage as daylight broke.

Commuters heading out for the morning were met with darkened traffic lights at some intersections and downed branches blocking parts of sidewalks and roads in the hardest-hit areas. Ottawa police and city crews were on standby to help clear debris and manage traffic where signals were knocked out.

Why it matters for Ottawa

Summer storms like this one are becoming an increasingly familiar disruption for the city, and this latest system is a reminder of how quickly a fast-moving line of thunderstorms can take out power for large swaths of the capital. For residents, that can mean spoiled groceries, disrupted work-from-home mornings, and headaches for anyone relying on power for medical equipment or air conditioning during a humid stretch of summer.

Hydro Ottawa crews were dispatched overnight and into the morning to restore service, prioritizing hospitals, water treatment facilities, and areas with the largest concentration of affected customers first. As always after a major storm, isolated outages can take longer to fix if they require replacing damaged poles or lines rather than just resetting a breaker.

What residents should do

Anyone still without power is encouraged to check Hydro Ottawa's outage map online for real-time updates and estimated restoration times rather than relying on guesswork. If you spot a downed line, the advice from officials is always the same: stay well back and assume it's live, then report it directly to Hydro Ottawa rather than attempting to move it yourself.

For those who lost power overnight, it's also worth doing a quick check of the fridge and freezer once things are back on, food safety experts generally recommend tossing perishables that have been above 4°C for more than two hours.

With more unsettled weather possible as the summer continues, it's a good moment for Ottawa households to make sure they've got a flashlight, some batteries, and a charged power bank on hand, just in case round two rolls through.

Source: CTV News