MANITOBA: Thunderstorm Forecast for Thursday, June 15, 2023
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FORECAST DISCUSSION
Isolated pop-up thunderstorms are possible in Southwestern Manitoba during the afternoon and evening on Thursday. While these storms are expected to remain non-severe, there is the potential for funnel clouds which in rare cases can touch down and become a landspout tornado. The strongest funnel cloud risk is in the Boissevain and Killarney regions.
Landspout: A landspout is a type of tornado that forms under a weak thunderstorm. Unlike traditional tornadoes, which develop from supercell thunderstorms and are associated with a rotating updraft called a mesocyclone, landspouts form from non-supercell storms and do not have a mesocyclone. These tornadoes are generally weaker and shorter-lived than their supercell counterparts but can still pose a threat to property and life, with wind speeds occasionally reaching up to 160 km/h.
