This is the breathtaking moment a thick mass of orographic clouds spilled over a mountainside.<br /><br />Locals were amazed by the sight, with the dense clouds resembling heavy white smoke.<br /><br />Resident Wansiri Pangchanud was returning home when the stunning waves of clouds flowed over the imposing mountains in her hometown in Sa Kaeo province on May 11.<br /><br />Footage shows the white mass slowly drifting over the top of the mountains amongst the panoramic rural scenery.<br /><br />Wansiri said that although she lives in the area she rarely sees such cloud formations.<br /><br />She said: "After the rain, I was riding back home on the local road when I noticed the clouds. They reminded me of the magnificent scenery in Switzerland."<br /><br />Orographic clouds are normally shaped from mountains and hills. They are formed when the air warm air is forced to lift and move over the cooler surface.