The northern branch of the jet stream features a blocking ridge over northwest Canada extending back into northern Alaska. The polar vortex over north-central and northeast Canada extending into western Greenland. And a blocking ridge over Iceland extending back into eastern Greenland and northward to the pole. This is a mild/cool pattern for most of Canada. The southern branch of the jet features a trough in the Gulf of Alaska. And a low amplitude jet with embedded disturbances across the U.S. and southern Canada. Subtropical high pressure is located over the northwest Caribbean and southeast Gulf of Mexico.