What is the difference between the dust storms of the 1930s and the haboobs we experience in The Valley?
1930s Dust Storm = Synoptic Scale - horizontal length of 1,000 kilometers or more
1930s Dust Storm = generated by a strong cold front passing through
Haboob = Mesoscale - horizontal length of 5 kilometers to a few hundred kilometers
Haboob = thunderstorm collapses as winds move against the path of the storm