A flash freeze warning has been issued for the Ottawa area as temperatures fall throughout the day. 

Though we started out with a high of 10 C, the temperatures will fall to below freezing during the afternoon. 

The rain will change to snow and the puddles will turn to ice. 

Environment Canada is also warning of freezing rain for the afternoon commute home.

Ottawa police are warning residents to avoid any unnecessary travel due to flash freezing.

Surfaces like roads, sidewalks and parking lots will become very slippery, it warns. 

Temperatures will drop below 0 C by late afternoon and keep going lower, down to -15 C overnight — with wind chill on top of that.

There's a snowfall warning for areas along the St. Lawrence River such as Kingston, Brockville and Cornwall, with up to 20 centimetres possible by Saturday afternoon.

The Ottawa-Gatineau area should get around seven centimetres of snow.

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