The northern branch of the jet stream features a ridge over eastern Alaska and western Canada. A strong trough over central and eastern Canada extending eastward across Greenland. This is a mild/warm pattern for western Canada, mild/cool in the east. The southern branch of the jet features a weak ridge off the west coast of the U.S. A trough over the western U.S. A trough over the central U.S. and a ridge along the east coast. Strong subtropical high pressure is located along the southeast coast of the U.S. extending back across the Gulf of Mexico into Mexico.