Weather forecasters are warning of excessive heat this week in parts of Nevada, Arizona and California.
The National Weather Service has issued an excessive heat warning for Monday through Wednesday. It covers the desert regions and other low-lying areas.
Forecasters say temperatures could reach 114 in the Las Vegas and Colorado River valleys. Temperatures in Death Valley could hit 125 degrees.
Other areas were under shorter excessive heat warnings, including central and southern Arizona, and the Grand Canyon.
Forecasters say people should limit outdoor activity and stay hydrated to avoid heat exhaustion and heat stroke.
Cooling stations are set up in many communities.