During the winter of 1976-1977, global cooling and large amounts of Arctic sea ice produced this jet stream pattern. It caused very cold temperatures in the Eastern US, and warmth, drought and fire to the western US.
In February 1977 the Sierra snowpack—a scant quarter of normal—reached down only to 6,500 feet, setting the stage for a summer of massive forest fires. Already low after the previous year’s drought, California’s reservoirs began to go dry, idling hydroelectric turbines and forcing farmers to drill more irrigation wells. But California was not alone. Virtually the entire West suffered as low snowpack reduced the flow of the Colorado, Columbia, and other critical river systems.
National Geographic Magazine Archive
During the winter of 2013-2014, global warming and small amounts of Arctic sea ice produced the identical jet stream pattern. It caused very cold temperatures in the Eastern US, and warmth , drought and fire to the western US.
U.S. temperature extremes and the polar jet stream | NOAA Climate.gov
Climate science is wonderful, because you never need any evidence or logic to support your theory, and you can talk out of both sides of your mouth.
