Dangerous heat will surge northward and send temperatures soaring across the northwestern United States during the final week of July.
Throughout the duration of the 2016 Summer Olympics in Rio de Janeiro, one group of athletes will be paying close attention to the weather forecast and, in particular, the wind as they go for the gold.
Lightning killed a teenager on Friday, the second teen lightning death in three days. With thunderstorms continuing to rattle several parts of the nation, more lives will be at risk.
Many locations around the world endured dangerously hot weather this week, while severe flooding persisted in China.