ONTARIO: Thunderstorm Forecast for Thursday, June 8, 2023

NOTE: YOU CAN CLICK ON THE MAP TO OPEN A ZOOMABLE IMAGE WHICH WILL BE EASIER TO READ.

Isolated pop-up thunderstorms are possible during the afternoon and early evening on Thursday across Southern Ontario. While these storms are expected to be quite weak, they could still produce the occasional lightning strike which could potentially start new wildfires. There are also some indications that the environment is favourable for the development of funnel clouds. Especially around the shoreline of Lake Ontario and Erie. Funnel clouds usually don’t present a risk, but in rare cases, they could 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.