A tornado watch is in effect for much of the region.
Environment Canada says the watch covers Dryden, Ignace, Sioux Lookout, Ear Falls and Atikokan areas.
Conditions are favourable for the development of severe thunderstorms which may produce tornadoes.
Thunderstorms are developing this afternoon and may become severe with large hail and damaging winds. Latest analysis is suggesting a higher risk of a tornado and therefore the severe thunderstorm watch has been upgraded to a tornado watch.
Be prepared for severe weather. Take cover immediately, if threatening weather approaches.
In the event of a tornado, or if a tornado warning is issued for your area, it is recommended you take the following actions: Go indoors to a room on the lowest floor, away from outside walls and windows, such as a basement, bathroom, stairwell or interior closet. Leave mobile homes, vehicles, tents, trailers and other temporary or free-standing shelter, and move to a strong building if you can. As a last resort, lie in a low spot and protect your head from flying debris.
A severe thunderstorm warning is in effect for the Red Lake, Kenora and Fort Frances areas.
Environment Canada meteorologists are tracking a severe thunderstorm capable of producing very strong wind gusts and up to toonie size hail.
This severe thunderstorm is located 13 kilometres southwest of Murdock Lake, moving east at 60 km/h.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.