Weather and Meteorology - Glossary
Included in this glossary you'll find terms related to our public forecasting program, weather observations and unique terminology that is of Environment Canada's hurricane centre and ice service products.
- Flash Freeze Warning
A warning issued by Environment Canada’s Meteorological Service (MSC) for when a rapid drop in temperature to below freezing, results in significant ice on road surfaces. This ice is produced by the freezing of residual water from either melted snow or falling/fallen rain.
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