NORTHERN ONTARIO: Thunderstorm Forecast for Friday, June 9, 2023

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Scattered thunderstorms are expected to develop across Northwestern Ontario on Friday. A few of these storms have the potential to become severe with the main risks being 90+ km/h wind gusts and quarter-sized hail. There could also be a risk of funnel clouds which in rare cases can touch down and become a landspout tornado.

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.