Occurred on October 26, 2019 / Virginia Beach, Virginia, USA
Info from Licensor: "At approximately 2:00 PM, my fiance and I were on the beach, when we saw the roll cloud formation. The day was clear and windy with few clouds. This is the southernmost area of the beach before the border, located on the Atlantic Ocean. The cloud appearance lasted about 20 minutes, then started to dissolve. However, another was forming behind it. The result was several roll clouds forming, one after another. It seemed to continue forever, ending at the point on the horizon. The beach was pretty deserted, with several small groups surf fishing along the shore."