The Sahara dust, also called the Saharan Air Layer (SAL), forms over the Saharan desert every spring, extending one to three ...

If it's high enough, air quality alerts may be issued this week. "The Saharan Air Layer is a mass of very dry, dusty air that forms over the Sahara Desert during the late spring, summer ...

Dust coming off the Sahara into the Atlantic is a common occurrence and is known as the Dry Air Saharan Layer. Later in the hurricane season it can inhibit the growth of tropical storms developing ...