'Ominous' Shelf Cloud Looms Over NASCAR Track in Tennessee

An impressive shelf cloud loomed ominously over Tennessee’s Bristol Motor Speedway on Saturday, March 27, shortly before NASCAR postponed its Cup and Camping World Truck Series at the track due to the wet weather.

This video was recorded from the speedway’s campground prior to the scheduled start of the race, which ended up being postponed first to Sunday, and then again to Monday due to continuing heavy rainfall. Credit: Alan M Levine via Storyful