A Siberian air blast has plunged the US into bitter cold, with temperatures 20-30 degrees below normal. Wind chills as low as -57°F threaten frostbite within minutes.
Snow reaches deep South, Florida included
Rare snowfall is forecast across southern states, potentially blanketing parts of Texas, Louisiana, and Florida with up to 3 inches, causing hazardous conditions.
States of emergency declared
Governors in Louisiana, Georgia, Alabama, Florida, and Mississippi have mobilized resources to prepare for freezing rain, icy roads, and travel disruptions.
Schools, flights, and services affected
Massive school closures, over 1,600 flight cancellations, and interruptions to essential services are underway, with Houston airports and NASA facilities shut down.
