Heavy snow bands made for near-zero visibility and dangerous driving conditions on highways near the Colorado-Wyoming border on Wednesday, December 21, the National Weather Service said.Wyoming Highway Patrol released footage showing the hazardous conditions. The patrol said that troopers had responded to over 787 calls for service, 196 motorists assist, and 104 crashes in just 12 hours.The National Weather Service said wind chills dropped into the -40s locally in Cheyenne, where it had issued a snow squall warning that afternoon.The Colorado Department of Transportation said parts of Interstate 25 were closed between the Colorado-Wyoming border on Wednesday. Credit: Wyoming Highway Patrol via Storyful