Quote:
Originally Posted by overdrive1979
Windstorm are not the same as katabatic winds such as Santa Ana.
So, if an high pressure system located over the Great Basin creates Santa Ana dry, katabatic winds in California during autumn or winter season, a given winter high pressure over the Canadian prairies would theorically create the same kind of dry, strong katabatic winds in either Portland, Seattle or Vancouver.
Am I right?
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Yes we do get those in late fall and winter and they are called arctic outflow winds as the winds blowing from the Canadian prairies are super cold. As a result, places like the Fraser and Willamette valleys get low windchill and cold temperatures. We get most of our yearly snowfall during these events.
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