Steel Rebar. Reinforcing bar, or rebar, is a common steel bar that is hot rolled and is used widely in the construction industry, especially for concrete reinforcement.
These flows generally occur during periods of intense rainfall or rapid snow melt. They usually start on steep hillsides as shallow landslides that liquefy and accelerate to speeds that are typically about 10 miles per hour, but can exceed 35 miles per hour. The consistency of debris flows ranges from watery mud to thick, rocky mud that can carry large items such as boulders, trees, and cars.
Most often, a tornado moves from southwest to northeast, but tornadoes have been known to move in any direction. The average speed is about 30 mph but this can vary from nearly stationary to more than 70 mph. Tornadoes are capable of tremendous destruction with wind speeds of 250 mph or more. Damage paths can be wider than one mile and fifty miles in length.