This is the spectacular moment a dust devil tornado picked up hundreds of leaves on the roadside in Thailand.

Video shows the flurry of fallen leaves rotating next to an empty road in Ratchaburi province, on August 11.

The dry leaves eventually drifted back down as the whirlwind faded away.

Dust devil tornadoes are types of whirlwinds that form when the sun heats a patch of land and the air above becomes warmer and rises quickly.

Cooler air then moves into the low-pressure gap left by the rising warm air. The new drafts of cooler air also heat up and rise and the cycle continues, picking up dust and debris and making the spiral visible.

They are not as dangerous as supercell tornadoes, which can cause severe damage.