Semi Truck Slides Out on Icy Curve, Slams Into Guardrail Whitefish, MT — December 5, 2025 Dash-cam video captured the tense moment a fully-loaded semi lost traction on a windswept, ice-slick mountain roadway and began to slide sideways across the lane. The trailer swung wide as the driver fought to regain control, but powerful crosswinds and a sheet of black ice sent the rig drifting helplessly toward the shoulder. The truck collided with the guardrail in a shower of snow and metal, narrowly avo