until MON 11:00 PM MST, Kaibab Plateau, Grand Canyon Country, Coconino Plateau

from TUE 6:00 AM MDT until TUE 5:00 PM MDT, Chuska Mountains and Defiance Plateau

from TUE 5:00 AM MST until TUE 4:00 PM MST, Little Colorado River Valley in Apache County, White Mountains

until TUE 3:00 AM MST, Western Mogollon Rim

until TUE 5:00 PM MDT, Black Mesa Area

Phoenix sees first 100-degree day of the year

Published May 1, 2015