The southwest as a region has the highest number of homeless people in the nation.
A desperate economy and rising temperatures have forced more people who are homeless to take shelter in the cooler national forests, like the San Bernardino in southern California and the Coconino in northern Arizona. Forest officials are concerned -- more people in the woods means more wildfires.
Two summers ago, a homeless man living in the Flagstaff woods sparked a fire that threatened 170 homes.
Warm, windy weather is raising the fire danger in the Mountain West.
Red flag warnings were in effect Thursday for much of western Colorado and the San Luis Valley as well as parts of Wyoming, Utah, Arizona, Nevada and New Mexico.
In western Colorado, the National Weather Service said wind gusts could reach up to 35 mph before the threat is expected to subside Friday afternoon. Humidities are also expected to drop below 15 percent there, making it easier for fires to spread.
The agency warns that simple burns on farms or ranches could easily get out of control.