NEWS
Arctic Air into Weekend in Canada
Doug Webster DTN Senior Ag Meteorologist
Thu Nov 21, 2013 11:08 AM CST

The weather pattern across North America has taken on what meteorologists call a positive Pacific North America pattern or positive PNA during the recent week. This means that an upper level ridge has developed across the coast of Western Canada, while a trough lies across central and Eastern Canada much of the time.

The result of a pattern like this is to block of any modifying influence of the mild Pacific to interior Western Canada and points east. With a now well-established snow cover across much of Canada and with long nights, temperatures can plummet quickly and have as we ...

Quick View
Related News Stories
Rain in Midwest, Prairies Wednesday
Rain Wednesday for Plains, Midwest
DTN Ag Weather Brief
Market Impact Weather
NWS River Stages
Plains, Midwest Rain Tuesday
Rain Tuesday SW Plains into Midwest
2015 Versus 2010
Market Impact Weather
Rain Monday in Areas of Plains, Midwest