US Winter Storm Alert: Snow, Sub-Zero Cold, Heavy Rain Threaten Millions

• A blizzard warning and winter weather alert have been issued for over 18 million people in the Western and Midwestern US, with temperatures expected to drop below zero.
• Heavy snowfall is forecast across multiple regions, including over a foot in the Northern Rockies and 4-6 inches from South Dakota to northwest Illinois.
• Chicago could see 2-5 inches of snow, leading to extremely slippery roads and sidewalks.
• Following snowfall, temperatures in the Dakotas and Minnesota are predicted to fall below zero from Sunday night to Monday.
• A new Pacific system will bring heavy rain to Washington and Oregon from Sunday night, increasing the risk of flash flooding.

Why It Matters: Millions face dangerous winter weather, including blizzards, snow, and freezing temperatures.