Highstorm
A highstorm is a particularly fierce weather system on the planet of Roshar. They happen every few days and move from east to west,starting at the Origin and continuing across the entire continent, though they weaken gradually as they cross,and are mostly broken by the mountains east of Shinovar. A highstorm has three general stages, the leading edge is called the stormwall and is the most dangerous part of the storm, being a wall of water, dust and other debris picked up by the storm, and extremely high winds, the main section of the storm has less debris although the powerful gusts of winds can still pick up large rocks on occasion, as the storm passes by it gradually calms until the trailing edge, called the riddens is simply light rain mixed with occasional relatively mild gusts of wind. At some point during the main part of the storm spheres left outside, usually in baskets secured to the undersides of roofs, are infused with Stormlight.