Folsom Field in Boulder, Colorado, was covered with snow during Saturday’s Utah-Colorado game, and fans suffering through the cold temperatures caused a short stoppage in the game during the second quarter by throwing snowballs toward the field.

A referee stopped the game just before a first-and-goal attempt from the Utes to remind fans that throwing snowballs can create a dangerous situation. Utah went on to win the game, 30-7, to improve to 8-3 on the year and 6-3 in the Pac-12.