Big changes in the ECMWF EPS medium range prediction... what was once looking like a promising cold pattern for the eastern U.S. is now looking like a severe cold pattern for the western U.S. with anomalous warmth East. Big fail with the prediction of the Northeast Pacific ridge. pic.twitter.com/A2aOLHFZu4

— Michael Ventrice (@MJVentrice) October 19, 2019