FORT COLLINS, Colo. — Dangerous weather brewed across northern Colorado, including major cities like Fort Collins and Greeley Monday afternoon through the evening.
A Tornado Watch ran through 8 p.m. for Larimer, Logan, Washington and Morgan Counties. That alert, issued just after 1 p.m., was a precursor to extremely severe weather in the region.
Forecasters and weather experts warned of large hail and tornadoes. Storm chasers caught video and photos of both hail and tornadoes that touched down in the storm's range in both Colorado and Wyoming. Denver7 photojournalist Daryl Orr caught video of two twisters near Cheyenne, Wyoming.
Officials branded the storm a Particularly Dangerous Situation (PDS), a rare alert for a storm in Colorado, and a first for Wyoming.
"We are coordinating a PDS Tornado Watch for portions of Wyoming, Colorado and far west Nebraska," National Weather Service experts said on Twitter. "This is the first PDS watch for Wyoming."
Several strong tornadoes touched down, although it's unclear if any damage has been reported. Hail as large as softballs tumbled from the sky in towns like Pierce and Windsor.
The storm was part of a larger threat for metro areas in Wyoming, including most of the southeastern part of that state. The population inside the entire three-state watch area includes just under a million people, with 364 schools and 20 hospitals.
Tornado Watch in effect for Larimer,Logan,Washington, Weld & Morgan counties. Tornadoes/large damaging hail possible pic.twitter.com/6h7hEfxyGq
— First Alert Weather (@FirstAlert7) June 12, 2017