Temperatures dropping to freezing or sub-freezing levels Tuesday

Some would say we’ve been lucky so make it this far into winter without any freezing nights. That is about to change.

KXAN Austin weather: Arctic cold arrives earlier bringing ice risk

Sub-zero temperatures hit north central Montana over Christmas weekend

Temperatures dropping to freezing or sub-freezing levels Tuesday

US winter storms: Dangerous Arctic freeze will linger through midweek

What is freezing level chart in your weather forecast? Yes, it is about snow but not only

Freezing Rain SKYbrary Aviation Safety

Which US states have the most below freezing temperatures during the winter? - Quora

Cold Weather Maps: Tracking Arctic Air Temperatures Across the U.S. - The New York Times

Hard Freeze Warning in effect in North Texas. Here's how to prepare – NBC 5 Dallas-Fort Worth

Rain and Mild Temperatures Return Briefly Wednesday, Flash Freeze Possible Tonight

All 50 states will feel the freeze by Wednesday as cold air sweeps across America