Semi Crosses Median and Overturns on Snow-Covered Montana Highway, Caught on Camera Stunning video from a passing motorist captures the moment a semi truck loses control on a snow-slick Montana highway, sliding across the median before flipping onto its side in oncoming lanes. Blowing snow and icy pavement appear to play a major role as the driver fights to regain control in treacherous winter conditions. Traffic came to an immediate halt as witnesses called for emergency assistance. State offic