The northern branch of the jet stream features a ridge over Alaska and northwest Canada. A trough over north-central and northeast Canada. And a weak ridge over Greenland. This is a cool pattern for most of Canada. The southern branch of the jet features a ridge over the Gulf of Alaska and eastern pacific. A trough over the western U.S. And a weak west to east jet over the central and eastern U.S. with an embedded disturbance over the southeast US. Subtropical high pressure is located over central Mexico, the southern Gulf of Mexico and the northern Caribbean.