Tire tracks and footsteps are seen in the snow as the state of Texas experiences widespread power outages and record-breaking temperatures in Houston, U.S., February 16, 2021. REUTERS/Callaghan O'Hare
LUBBOCK, Texas (Reuters) - A historic winter storm has killed at least 21 people, left millions of Texans without power and spun killer tornadoes into the U.S. Southeast on Tuesday.
The brutal cold has engulfed vast swaths of the United States, shuttering COVID-19 inoculation centers and hindering vaccine supplies. It is not expected to relent until the weekend.
