Dark tornado crossing close to cars on interstate highway

Create a 10-second vertical 9:16 ultra-realistic smartphone footage clip of a dark tornado crossing very near an interstate highway. Cars are pulled over, some brake lights visible, and the tornado appears dangerously close to the roadway or just beyond it. The sky is dark and heavy, and the funnel/body has a strong silhouette. The handheld phone footage should feel shaky but believable, with slight exposure changes and imperfect framing, like a real bystander recording a rare and dangerous weather event. Style: raw severe weather footage, real roadside storm clip, handheld phone realism, documentary tension, viral weather footage. Negative prompt: no CGI storm, no unrealistic traffic behavior, no fake apocalyptic sky, no smooth cinematic stabilization