It had its origin in Tucson then progressed northward to Phoenix. The “haboob” arrived in Phoenix late afternoon with winds in excess of 50 mph and a vertical height of 5,000 to 6,000 ft. The picture to the left was taken at the National Weather Service Phoenix office. The storm even shut down Phoenix SkyHarbor Airport for 45 minutes with visibility near zero. While this haboob was one of the largest in history, Phoenix averages about 3 per year during June through September.