Plunging temperatures have put much of the country in a deep freeze this holiday weekend, combining with snow, freezing rain, ice or gusty winds in some places to endanger nearly 100 million people from Northern California to coastal Maine.
Forecasters said hundreds of records gauging the cold could be broken this week, as frigid air gripped a huge swath of the nation, including southern cities like Dallas, Memphis and Little Rock, Ark.
Other places braced for sleet or snow, with Buffalo, N.Y., expecting up to two feet of snow.
While some people hunkered down indoors, stocking up on food and firewood, others braved the cold to attend events for the Iowa caucuses, cheer on their favorite teams at the Chiefs-Dolphins N.F.L.
playoff game or go skiing, among other activities.
Organizations:
Little, Chiefs, Dolphins
Locations:
Northern California, Maine, Dallas, Memphis, Buffalo, N.Y, Iowa