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Severe thunderstorm watch in effect for much of B.C.’s Southern Interior

Click to play video: 'B.C. evening weather forecast: June 20'
B.C. evening weather forecast: June 20
A severe thunderstorm watch is in effect for most of B.C.'s southern interior. Senior meteorologist Kristi Gordon has the details in your Friday, June 20, 2025, forecast for Metro Vancouver and British Columbia – Jun 20, 2025

Much of British Columbia’s Southern Interior was placed under a severe thunderstorm watch on Friday, with heavy rain also in the forecast.

The advisory includes the Okanagan, South Thompson, Nicola, Shuswap, Similkameen, Boundary and Fraser Canyon regions.

“An upper disturbance will settle over southern British Columbia where widespread showers and strong thunderstorms are expected to produce heavy precipitation this afternoon and tonight,” Environment Canada warned.

Total rainfalls of between 20 and 40 mm were forecast from Friday through Saturday afternoon.

Click to play video: 'Lightning strikes more than twice? Airplane bombarded by thunderbolts'
Lightning strikes more than twice? Airplane bombarded by thunderbolts

“Because of the convective nature of the system, showers will be widespread, and areas where thunderstorms develop will further enhance precipitation rates,” the advisory states.

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“Once the thunderstorm threat diminishes this evening, moderate rainfall will persist tonight and into Saturday.”

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Environment Canada is warning people that sudden downpours could create localized flooding, pooling on roads or landslides and debris flows from unstable slopes.

Drivers are advised to slow down and ensure their headlights are on.

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