Storm chasers on Friday released stunning footage of a massive "mothership" storm cloud hovering over the Northwest part of the United States. The video was captured near Lansford, North Dakota, a little before 9 p.m. local time by storm chaser Shelly Heinrichs, who is based in the neighboring province of Manitoba, Canada. Heinrichs shared the footage on Twitter where it has been viewed a little over 186,000 times as of Monday afternoon.