Severe Thunderstorm (White River – Dubreuilville)

Jun 29, 2026 at 20:47

8:26 PM EDT Monday 29 June 2026

Impact Level: Moderate

Forecast Confidence: High

Thunderstorm Location: Matthews Lake to Pukaskwa National Park of Canada

Motion: Moving northeast at 55 km/h

Hazards: Wind: damaging (90 km/h)

Rain: heavy (40 – 70 mm)

Locations in the Path:

• Herrick Lake
• White Lake Provincial Park
• Shekak Lake
• Pukaskwa National Park of Canada
• Matthews Lake
• Dayohessarah Lake
• Nameigos Lake
• Mishibishu Lake
• Obatanga Provincial Park

Local utility outages are likely.

Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris and hail. Don’t drive through flooded roadways. 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. Please continue to monitor alerts and forecasts issued by Environment Canada.

In effect for:

• White River – Dubreuilville

Jun 29, 2026 at 19:16

7:15 PM EDT Monday 29 June 2026

Impact Level: Moderate

Forecast Confidence: High

InstantWeather Ontario has detected minor rotation.

At 7:14 PM EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing damaging wind gusts and up to quarter size hail.

Local utility outages are likely. Large hail may cause significant damage and injury.

Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris and hail.

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.

Please continue to monitor alerts and forecasts issued by Environment Canada.

In effect for:

• Wawa – Pukaskwa Park

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Environment Canada

Yellow Alert = Hazardous weather
Orange Alert = Severe weather
Red Alert = Very dangerous and possibly life-threatening weather

For road conditions and other traveller information from the Ministry of Transportation, visit https://www.ontario.ca/511, or call 5-1-1.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or tweet reports using #ONStorm.

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