A large number of dust storms (11 to be exact) have already impacted Colorado and other parts of the Southwest this year. The storms happen when vigorous centers of low pressure pass through the central Rockies. Typically, southern sectors of these storms are very windy with gusts sometimes greater than 65 miles per hour.

Obviously, the worst dust storm situations occur when there hasn't been much precipitation, which was the case through the Southwest this winter. When the soil is extremely dry, it is easily picked up by the wind and carted elsewhere.

This weekend, a storm will move from the central Rockies into the Great Plains. Winds manufactured by the storm will produce blowing sand and dust in southern Colorado, New Mexico and West Texas Saturday night into Sunday morning. Highway travelers should be prepared for locally poor visibility during that time.

Other effects of dust storms include poor air quality and a progressively bad environment for vegetation.

Story by AccuWeather.com Expert Senior Meteorologist John Kocet.