The National Weather Service has issued a tornado watch that covers much of Colorado, including the Denver metro area.
The watch, which expires at 11 p.m., covers the following counties: Adams, Arapahoe, Bent, Boulder, Broomfield, Cheyenne, Crowley, Denver, Douglas, Elbert, El Paso, Jefferson, Kiowa, Kit Carson, Larimer, Lincoln, Logan, Morgan, Otero, Phillips, Prowers, Pueblo, Washington, Weld and Yuma.
The agency is also forecasting hail and thunderstorms for the area. Tornado warnings for parts of El Paso, Teller and Douglas counties were allowed to expire as the thunderstorms weakened. Rotating clouds were spotted south of Denver on the eastern plains:
Cooler temperatures, possibly only reaching the low 70s, are expected Tuesday and Wednesday for the Front Range.