EASTERN PACIFIC OSCILLATION *OFF THE CHARTS*
A major bellwether this time of year is the EPO. In a negative state it unleashes the cold from northern Canada as it reconfigures the overall west coast jet in a wavy ridge to trough structure. This is something the models struggle w/ pic.twitter.com/u5fyipQbm7

— Mike Masco (@MikeMasco) December 7, 2022