Winter Weather Warnings
Today, Edmonton has been issued the first Snowfall Warning
for the 2015/2016 winter season.
However, no matter where you live in Canada, it is very important to
understand severe weather terminology.
Weather warnings are issued by the Meteorological Service of
Canada a department of Environment Canada.
To help you understand Winter Weather Warnings, we have put
together a list of common weather warnings you may experience coast to coast in
Canada.
- Winter Storm Watch – Issued when conditions are favourable for the development of hazardous conditions. These bulletins may be issued 48 to 60 hours in advance.
- Winter Storm Warning – Issued when a combination of hazardous winter conditions are occurring or expected to develop no more than 12 to 14 hours in advance.
- Blizzard Warning – Issued when winds of 40 km/h (25 mph) or more, are expected to cause widespread reductions in visibilities to less than 1 km (0.62 mi), due to blowing snow, for at least four to six hours and windchills are expected to be very low.
- Snowfall Warning – Issued when hazardous amounts are expected to fall over a 12- or 24-hour period. These amounts vary across the country due to topographical and climatic considerations. They range from 5 cm (2.0 in) in 24 hours for parts of southwestern British Columbia to 15 cm (5.9 in), 20 cm (7.9 in) and even 25 cm (9.8 in) in 24 hours elsewhere.
- Snowsquall Warning – Issued when 15 cm (5.9 in) or more of snow is expected to fall within 12 hours, or the visibility is likely to be near zero for at least four hours because of falling and blowing snow. These are for areas much smaller than a snowstorm would cover. A warning may also be issued when blizzard-like conditions are expected to develop in the vicinity of a cold front for short periods.
- Freezing Rain – Issued when hazardous walking and driving conditions are expected from freezing rain or drizzle. A warning may be issued if ice is over 2 mm (0.079 in) thick and has the potential to cause damage to trees and overhead electricity and telecommunications wires.
This blog post is for informational purposes only.
For more information about Weather Warnings, please visit Environment
Canada at: https://weather.gc.ca/canada_e.html
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