Joel Burgio Telvent DTN Senior Ag Meteorologist
Thu Feb 20, 2014 12:58 PM CST

The northern branch of the jet stream features a blocking ridge over northeast Siberia extending eastward to north of Alaska. Eastern Siberia extending up towards the pole. The polar vortex over north-cenral Canada. And a blocking ridge over eastern Greenland. This is a cold pattern for central and eastern Canada, mild in the west. The southern branch of the jet features a flat ridge over the eastern pacific. A trough over the Plains and western Midwest. And a flat ridge over the eastern US. Subtropical high pressure is located over west-central Mexico.


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