NewsWeather Heavy Rainfall And Thunderstorms On The Way SHARE ON: Nick Birnie, contributor, Thursday, Sep. 20th, 2018 Significant and heavy rainfall along with thunderstorms is expected in Kapuskasing, Hearst and Smooth Rock Falls today. Environment Canada has a special weather statement for the area regarding heavy rainfall expected in the amount of 30 to 55 millimeters late this evening into Friday. The weather agency says the late night thunderstorms could bring a heavy downpour of rain from time to time through the night, including some localized flooding. Environment Canada says a rainfall warning has also been issued for these communities, as residents are advised to keep an eye out on rapidly changing weather conditions throughout the day. The heavy rain and thunderstorms are expected to take place through the evening into Friday.