'10 hours for a 40 minute trip'
Thousands of people in the southern United States have been trapped on highways and in schools by a rare snowstorm.
Airports and main roads closed as several states declared emergencies, with plummeting temperatures in a region normally known for warm weather.
Stefany Velez told BBC News about her 10 hour journey home, when snow caused traffic chaos in Atlanta, Georgia.
- From the section US & Canada