How does freezing rain form?

1:34   Another winter storm slams GTA, bringing freezing rain and heavy snow 3:37   GTHA under messy mix of freezing rain, snow 1:34   Temperatures reach single digits with snow, freezing rain on its way later in the week 3:19   Freezing rain hits southern Ontario, with more wintry weather to come 1:35   Impacts of freezing rain in Waterloo Region 1:22   Region braces for snow and freezing rain 2:28   Freezing rain warning in Southern Ontario 1:54   Hazardous Wednesday Commute: Snow, Ice, and Freezing Rain | #forecast 6:16   Icy mix of precipitation starts overnight in GTA 2:26   Storm Team 2: Freezing rain for parts of WNY Wednesday morning 2:06   Ontario braces for messy mix of freezing rain and snow 2:16   Freezing Rain Explainer 2:10   Why freezing rain is such a risk for power outages 0:39   How freezing rain forms