SUDBURY -- A slow-moving low-pressure system is being monitored by Environment Canada for possible rainfall warnings in the northeast.

Rain is expected to start east of Lake Superior Monday and move through Sault Ste. Marie to Timmins.

Total rainfall of 30 to 40 mm is expected, while some areas could reach 60 mm by Wednesday morning.

Environment Canada continues to monitor the situation and will issue a rainfall warning when 50 mm of rain is expected within 24 hours.

Meanwhile, the heat warnings will continue along the Highway 17 corridor, from the Greater Sudbury area to North Bay and Mattawa, and up Highway 11 to Temiskaming Shores and Kirkland Lake until Monday night.