Other higher population centers threatened include Albuquerque in New Mexico and Colorado Springs in Colorado.
“Any fire that starts will have the potential to spread rapidly, and would be difficult if not impossible to control,” the NWS office in Boulder said.
Relative humidity values as low as 5% and sustained winds of 30 to 40 mph with gusts from 60 to 70 mph are possible.
Some areas could see scattered wind gusts reaching 80 mph, strong enough to topple trees or knock over utility poles.
“These winds could potentially be catastrophic for ongoing wildfires or any new ignitions,” the NWS in Albuquerque said.
Dry thunderstorms are also a concern, according to the Storm Prediction Center.
These thunderstorms can produce lightning that can start new fires, with very little to no rain. The area at greatest risk for dry thunderstorms overlaps parts of the “extremely critical” fire threat near the Colorado/Kansas border down to the New Mexico/Texas border.
Much of the area is suffering from prolonged, severe drought that’s a symptom of the growing climate crisis. New Mexico’s drought area has more than tripled since January and now covers more than 60% of the state.
Friday’s is the seventh extreme fire danger issued since December, and the number of people in the extreme risk area — 4.2 million — is higher than all the previous six combined.
Last year, there were only two extreme risk days. That followed seven in 2020 and 11 in 2019.
More than 19,700 wildfires have been reported this year, more than any year-to-date period of the last 10 years, according to the National Interagency Fire Center. The 10-year-average for the period is 13,720.
CNN’s Brandon Miller contributed to this report.