Northern lights Arizona tonight

The Quinlan Mountains southwest of Tucson host the world's largest collection of optical telescopes. The observatory sits at 2096 m with Bortle 1 sky and strict local lighting ordinances. At 32°N geographic (~39°N magnetic), the latitude is low. Aurora here requires G3-G4 events. The combination of Bortle 1 sky and camera sensitivity means faint aurora not visible to the naked eye is detectable photographically.

Flagstaff is the world's first International Dark Sky City. The San Francisco Peaks rise to 3851 m immediately north of the city. At 35.2°N geographic (~43°N magnetic), Flagstaff has a significantly lower aurora threshold than Phoenix - around Kp 5 from dark positions outside the city. The Coconino National Forest north of Flagstaff on US-89 toward the South Rim gives Bortle 2 positions with open northern horizon across the Painted Desert plateau.

The high desert plateau of northeast Arizona at 1700-1800 m gives Bortle 1-2 sky over a vast open landscape. The park is 175 miles east of Flagstaff on I-40. The north-facing Painted Desert overlooks give open northern horizon with the aurora rising from the desert floor. The park's high elevation, dry air, and exceptional darkness make it one of Arizona's best aurora photography sites.

The South Rim at 2100 m faces north across the canyon to the North Rim. During major storms, aurora appears above the North Rim from the South Rim viewpoints. The Dark Sky Park designation covers the canyon. Mather Point and Yaki Point give north-facing positions. The rim road is accessible year-round on the South Rim.