Why should you avoid driving doubles in strong crosswinds?

Doubles and triples present large flat sides that wind pushes against, and the rearward amplification effect applies to wind-induced movement too. A strong gust acting on the rear trailer can swing it across lanes or, in extreme cases, contribute to rollover. Empty or lightly-loaded trailers are most vulnerable because there is little weight to keep the wheels planted. In high winds, slow down, increase following distance, and grip the steering wheel firmly to maintain control as the combination is pushed. On certain bridges and highway sections in known windy areas, posted advisory speeds for high-profile vehicles or temporary closures of doubles operation may apply.