Aug 7, 2026 at 21:48
Impact Level: Moderate
Forecast Confidence: High
Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.
Hazards:
- Wind gusts up to 90 km/h.
- Quarter to toonie sized hail.
- Locally heavy rainfall of 30 to 50 mm.
Timing: This evening into the overnight hours.
Additional information: Thunderstorms tracking northeast over Lake Superior will move onshore this evening and continue moving inland tonight. Some storms could become severe with strong winds and large hail.
Local utility outages are possible.
Damage to roofs, fences, branches or soft shelters is possible. 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. Heavy rain can cause flash flooding and significant reductions to visibility.
Aug 7, 2026 at 19:58
Impact Level: Moderate
Forecast Confidence: High
Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail.
Hazards:
- Wind gusts up to 90 km/h.
- Quarter to Toonie sized hail.
Timing: This evening into the overnight hours.
Additional information: Thunderstorms tracking northeast over Lake Superior are expected to move onshore this evening and continue moving inland tonight. Some storms could become severe with strong winds and large hail. Local utility outages are possible. Damage to roofs, fences, branches or soft shelters is possible.
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 watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain.
- Yellow Watch – Severe Thunderstorm (White River – Dubreuilville) - August 7, 2026
- Yellow Watch – Severe Thunderstorm (Wawa – Pukaskwa Park) - August 7, 2026
- Yellow Watch – Severe Thunderstorm (Chapleau – Missinaibi Lake) - August 7, 2026
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