Severe thunderstorms are expected to develop this afternoon and continue into the evening,” the agency said in a release Thursday.” “Conditions are favourable for the development of severe thunderstorms which may produce tornadoes.

Severe weather moving across eastern Ontario has triggered several alerts, including some tornado warnings. A tornado watch has been issued by Environment Canada for the Ottawa Valley and some parts Quebec, while Ottawa is under a severe thunderstorm watch.

The Environment and Climate Change Canada watches, which extend into Thursday afternoon and evening, cover a large portion of Ontario.

Environment Canada has issued tornado watches for several parts of Ontario, including communities north and east of Toronto.

As severe thunderstorm and tornado watches and warnings set in across Ontario and Quebec, concerns circulate of major weather to come.