Windsor Severance firefighters say they are battling a large haystack fire northwest of the Windsor Reservoir.

In a post on Instagram at 7:10 Thursday morning the department says they got a call of a haystack fire at 3:45 AM. The area in question is the intersection of Highway 257 and Weld County Road 78. They go on to say that haystack fires require "tearing apart the piles" which takes a long time, so they will be on site for most of the day.

Smoke from the fire is currently drifting over the Poudre Valley.