Environment Canada is issuing a special weather statement for the city of Thunder Bay, Atikokan, Upsala, Quetico, Superior West, Lake Nipigon, Wabikimi, Nipigon, Marathon and Superior North. Multiple thunderstorms are forecast to track through these areas beginning later today and continue through the night into Wednesday. Rainfall associated with this thunderstorm activity will be highly variable, however total amounts may be as high as 50 to 75 mm in some localities. Environment Canada is advising you to monitor future forecasts and warnings as they may be required or extended.