Thunderstorm risk kicks off unsettled weekend in Ontario and Quebec – The Weather Network

A line of thunderstorms will track into eastern Ontario and western Quebec on Thursday, bringing persistent rainfall to the regions throughout the day. Southern Quebec will also be seeing these storms and rain, but will have to wait until the late afternoon and overnight hours.

With the high humidity over the regions, ample amounts of moisture are available for these storms to tap into. As a result, the main threat with these storms will be heavy rainfall. Localized flooding is also possible, as some areas could receive 30-50 mm of rain.

A risk for severe storms lies in parts of eastern Ontario and southern Quebec on Thursday. In addition to heavy rains and localized flooding as the main risks, severe storms could also produce strong wind gusts and up to nickel-sized hail.

Environment and Climate Change Canada issued severe thunderstorm watches for parts of eastern Ontario and Quebec, including Ottawa and Montreal Thursday morning.

Friday and through the weekend: Rain persists with unsettled conditions

Unsettled conditions are likely to continue into the weekend for most of Ontario and Quebec, with showers lingering through Sunday.

A widespread thunderstorm risk will still remain over most of Ontario and and Quebec on Friday, but are unlikely to reach severe strength.