Well this should take a bite out of the snow pack. A large low pressure system will slide into the region today and spread rain showers, quite heavy at times, overnight into Sunday morning in the Sault Ste. Marie area. Get ready for some localized flooding that may occur .
Special weather statement in effect for:
Sault Ste. Marie – St. Joseph Island
Searchmont – Montreal River Harbour – Batchawana Bay
Heavy rainfall possible Saturday night into Sunday.
Rain, heavy at times, is forecast to begin overnight Saturday and continue into Sunday. Thunderstorms may accompany the rain, starting in Southwestern Ontario in the evening and spreading towards the Ontario-Quebec border by noon Sunday. Total rainfall amounts could exceed 25 mm in very localized areas that receive multiple rounds of heavy rain in thunderstorms.
There is considerable uncertainty regarding where the highest rainfall amounts are expected. Rainfall warnings with the criteria of 25 mm within 24 hours where the ground remains frozen may be required at a later time should heavier rainfall amounts become more likely.