US winter storm: at least 15 people dead and 800,000 without power

Key Highlights

• At least 15 people have died due to the winter storm.
• Approximately 800,000 people are without power across the U. S.
• The storm has prompted flight cancellations and school closures in multiple states.
• Twenty-six states are under storm warnings, with severe cold temperatures reported.
• A 16-year-old died in a sledding accident in Texas as a result of the storm.