A relative of the desert haboob: The less predictable dust-channel
By MIKAYLA MACE Arizona Sonora News [UPDATED] Everyone in Arizona knows what haboobs are: A towering wall of dust, sometimes a half-mile high and a hundred miles wide, caused by summer monsoons rolling in over Tucson and southeast Arizona, and slamming the dry, loose dirt into the air. This monster sweeps across the desert northward…