< Back to situations

Monitor this situation.

[SITUATION] · [QUIET] · [INTERNATIONAL]

3 clusters · 9 sources · 8 days · First seen · Last updated

Severe summer weather in Alberta

Overview

Alberta has experienced a period of volatile and severe summer weather characterized by intense thunderstorms, heavy rainfall, and significant wind activity.

In July, heavy rainfall and thunderstorms caused flooding in Edmonton underpasses and disrupted large-scale outdoor events at Commonwealth Stadium. Environment Canada reported 23 tornadoes across the province by mid-July, including an incident in Girouxville that damaged roofs on houses and a community hall. Strong winds also uprooted trees in the High Prairie, Falher, and Peace River regions.

By mid-August, weather patterns remained unstable due to a stationary boundary over the Rockies. Forecasts indicated risks of damaging winds reaching 100–110 km/h, large hail, and the potential formation of funnel clouds, particularly in southern Alberta regions such as Calgary, Airdrie, Okotoks, and Lethbridge. A subsequent significant temperature drop was expected, with conditions potentially falling 9–12°C below seasonal norms and bringing snowfall to higher elevations.

On August 10, specific risks were identified for southern Alberta, including Calgary, Airdrie, Okotoks, and Lethbridge, where hail as large as golf balls and wind gusts up to 90 km/h were possible. Areas northwest of Edmonton, such as Grande Prairie, faced minor risks of smaller hail and heavy rain. By August 17, severe thunderstorm watches were issued again for Calgary, Lethbridge, and Medicine Hat, with continued threats of large hail, strong winds, and heavy rainfall capable of causing localized flooding.

Entities

Alberta · Milwaukee · Waukesha County · Environment Canada · Montana

Timeline

  1. 25 days ago

    [INTERNATIONAL] 5 sources
    Severe storms cause damage and outages across US and Canada

    Severe thunderstorms, hail, and tornado warnings have caused power outages and property damage across Southeast Wisconsin, the Kansas-Missouri border, and southern Alberta, Canada.

  2. 26 days ago

    [INTERNATIONAL] 3 sources
    Alberta weather disruptions cause damage and event cancellations

    Severe storms, flooding, and 23 reported tornadoes have disrupted outdoor events and caused property damage across Alberta, Canada, during the summer of 2026.

  3. about 1 month ago

    [INTERNATIONAL] 2 sources
    Alberta faces severe thunderstorms and significant temperature drops

    Alberta faces severe thunderstorms with risks of large hail, damaging winds, and funnel clouds, followed by a significant temperature drop and potential mountain snowfall later this week.

Sources

ca.news.yahoo.com · capeweather.com · cbs58.com · dailyhive.com · klkntv.com · naturalstrength.com · southpeacenews.com · voiceofalexandria.com · xxlmag.com

This summary has been updated 2 times: see revision history