Megastorm

Extreme weather events examined from the inside out, including Hurricane Helene, the December Tennessee tornado outbreak and the vicious Black Summer of Australian wildfires, charting how and why they happen and the devastation left behind using first-hand survivor and witness accounts and adrenaline-fuelled footage captured on the ground.

Nat Geo TV · Nature · Streaming on Disney+ · 2 episodes

Episodes: S1 E2 Tennessee Tornado Outbreak — In one day in December 2023, three supercells, nature’s most violent storms, travel through Tennessee, triggering a rare winter tornado outbreak. Local news meteorologist Danielle and storm chaser Caleb broadcast warnings of potential disaster as the supercells unleash deadly twisters striking Clarksville and the surrounding areas of Nashville.; S1 E1 Hurricane Harvey — Hurricane Harvey explodes into a violent Category 4 storm, the first to strike the U.S. mainland since Hurricane Katrina. When two strong weather fronts block Harvey, it stalls over Houston and unleashes billions of tons of rain. The flooding is catastrophic, leaving thousands in danger, including Iashia, a Katrina survivor.