A special weather statement has been issued in Chatham-Kent, as heavy rainfall is likely this weekend.

Forecasters say several rounds of rain are likely Saturday and Sunday across extreme Southwestern Ontario with the approach of a slow moving low pressure system.

Occasional thunderstorms are likely.

Temperatures may dip to near or just below the freezing mark for a period of time late Saturday into Sunday morning with a threat of freezing rain.

Total rainfall amounts in excess of 50 millimetres are likely before the rain tapers off late Sunday.

Warnings may be required.

Envivonment Canada officials say to continue to monitor alerts and forecasts issued.

To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.