Blizzards
A blizzard is an event combining heavy snowfall, strong winds, and cold temperature. According to Environment Canada statistics, Waterloo receives an average of one event of this type per year with snowfall equal to 25 cm. or more, placing a strain upon both our public services (Police, EMS, Social Services, etc), as well as our infrastructure (water mains, roads, etc.).
Extreme Cold
Environment Canada statistics show the Region receiving an average of 10 to 20 days per year in which temperatures fall to -20°C , with an average 1 to 3 days per year in which the temperatures fall to between -20°C and -30°C. This is based upon statistics taken between 1971 and 2000.
Ice/Sleet Storms
Environment Canada statistics show that the Region received, on average, between 9 and 12 days per year of freezing precipitation between 1971 and 2000. While the Region's infrastructure is designed to withstand the ice loads that occur, widespread power outages are possible due the extreme loading on transmission and distribution lines caused by wind, ice, and fallen tree branches during an ice storm.
Snowstorms
Snowstorms, in which the Region receives more than 10 cm. but less than 25 cm., occur on average, between 6 to 12 days per year. This is based upon Environment Canada statistics, taken between 1971 and 2000. When these snowfalls are combined with either/both high winds and cold temperatures, the Region's resources (Police, EMS, Transportation and Environmental Services) can be maximized.