SUDBURY -- Communities across northeastern Ontario are under heavy rainfall warnings or special weather statements advising residents to watch out for heavy rain.

Areas under warnings include Timmins, Little Abitibi, Kesagami Lake, Cochrane, Iroquois Falls, Chapleau, Missinaibi Lake, Agawa, Lake Superior Park, Searchmont, Montreal River Harbour and Batchawana Bay.

Special weather statements are in effect for Sault Ste. Marie, St. Joseph Island, Kirkland Lake, Englehart, Fraserdale, Pledger Lake, Kapuskasing, Hearst and Smooth Rock Falls.

Environment Canada says rain, at times heavy, will continue through the day today and into tonight before easing to light rain Wednesday morning. Rain is expected to continue into Wednesday and into Thursday, although lesser amounts.

Additional rainfall amounts of 30-50 mm over most areas are expected by Wednesday morning, although local amounts exceeding 75 mm are possible for a few locales.

"Heavy downpours can cause flash floods and water pooling on roads," Environment Canada said. "If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop. Watch for possible washouts near rivers, creeks and culverts."

For information concerning flooding, visit Ontario.ca/floods.

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.