01/03/2024, 5:14 am EST
The overnight ECM 240-hour forecast is an attention getter. Frigid arctic air is present across the western half of Canada charging into the Northwest and North-central U.S. Temperatures average 20F to 40F below normal in this air mass and feature 2-meter temperature forecasts of -40F to -50F in Central Canada with below zero into Wyoming and South Dakota.