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Environment Canada Thunderstorm Outlook for June 30, 2020

Posted: June 30, 2020

 
 
 
 
 
Environment Canada Thunderstorm Outlook for June 30, 2020

 
 
 

Manitoba


  • Area(s): Southern
  • Timing: Tuesday late afternoon into Tuesday night
  • Hazards: 2-4 cm hail, localized rainfall of 50 to 100 mm, and risk of an isolated tornado transitioning to 2 cm hail and 100+ km/h wind gusts.

A cold front pushing into southern Manitoba will spread thunderstorms eastwards across southern portions of the province tonight. The highest likelihood of severe weather will be over southwestern Manitoba in the late afternoon/evening where heavy rain, damaging hail, and an isolated tornado will be possible near the Saskatchewan border. As the thunderstorms move eastwards overnight, they are expected to develop into a squall line and the primary threats will transition to damaging hail and wind.

 

Saskatchewan


  • Area(s): Severe risk in the southeast, non-severe across much of the province
  • Timing: Tuesday afternoon into the evening
  • Hazards: 2-4 cm hail, widespread rainfall of 50 to 100 mm, and risk of an isolated tornado

Thunderstorms will spread out of the United States into southeastern Saskatchewan this afternoon. These thunderstorms will be slow moving through the late afternoon hours and capable of producing very heavy rainfall and damaging hail. An isolated tornado is possible. The thunderstorms will begin moving eastwards out of the province in the evening.

 

Alberta


  • Area(s): Northwestern and a small area in the southeast
  • Timing: This afternoon and evening
  • Hazards: 2 cm hail

A trough of low pressure is the focus for thunderstorms today. In northwestern regions, some thunderstorms may become severe, with 2 cm hail being the main threat. A small area in southeastern Alberta may see a few non-severe thunderstorms develop this afternoon. A funnel cloud or two may be possible in this area. Thunderstorms are expected to weaken late this evening.
 

 

 

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