Yellow Warning – Severe Thunderstorm (White River – Dubreuilville)

Jul 31, 2026 at 16:41

Yellow Warning – Severe Thunderstorm

Impact Level: Moderate

Forecast Confidence: High


At 4:27 PM EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts, up to quarter size hail and very heavy rain.

Location: Over Pukaskwa River Provincial Park

Motion: Moving very slowly

Hazards:

  • Rain: very heavy (50 – 80 mm)
  • Wind: strong (up to 90 km/h)
  • Hail: up to quarter size (up to 2.5 cm)

Locations in the Path: Pukaskwa River Provincial Park

Local utility outages are likely. Heavy rain may cause flash flooding and significant reductions to visibility. Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris and hail.

When thunder roars, go indoors! Lightning kills and injures Canadians every year. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Environment Canada

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