Severe thunderstorm watch in effect for parts of northeastern Ontario

Thunderstorms expected to begin Wednesday night A thunderstorm is expected to roll into the northeast region Wednesday night bringing rain, strong winds and possible hail.

Environment Canada has issued a severe thunderstorm watch in effect for the following areas in the northeast:

The agency said conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.

Nickel-sized hail and heavy downpours are possible.

"A cluster of strong thunderstorms has developed over a swath from Montreal River to Sudbury, and is expected to move southeast early this morning. Large hail and heavy downpours are the main threats," the agency said.