How Tuesday's storms unleashed violent winds in Maryland and Virginia
An arced-shaped storm, known as a bow echo, tore across the Washington area, leaving behind more than 100 reports of tree damage.
Hundreds of trees were toppled and hundreds of thousands of people lost power Tuesday afternoon and evening as three storm complexes roared across the Washington region. The storms were fueled by hot and humid air that surged into the region and were powered and sustained by strong high-altitude winds along an approaching cold front.
Two complexes in particular were responsible for the lion’s share of the damage. They were both arcing, bow-shaped lines that swept from west to east. The first plowed from Washington County to Cecil County in northern Maryland late in the afternoon. The second blitzed northern Virginia, the District and central Maryland during the evening. Both brought down scores of trees and wires — some on homes and cars.'>>>
https://www.washingtonpost.com/weather/2022/07/13/maryland-storm-olney-collegepark-damage/?