Riyadh: Dust devils, locally known as dust whirlwinds, are common summer weather phenomena in deserts and open areas. They form when intense surface heat creates rising, rotating columns of warm air that lift sand and dust.

According to Saudi Press Agency, Afaq Society for Astronomy member Burgis Al-Fulaih explained that these short-lived phenomena vary in size and intensity depending on terrain and soil conditions. They typically occur in the afternoon, when surface temperatures are highest, and weaken in the evening.

He noted that the frequency of dust devils has declined in recent years due to improved vegetation cover through protected reserves, afforestation efforts, restrictions on illegal woodcutting, and better grazing management.

Al-Fulaih advised caution on open roads, in desert areas, and at outdoor sites, noting that although dust devils generally have a limited impact, they can temporarily reduce visibility, raise dust, and displace lightweight objects.