Hurricane Helene unleashed over 40 trillion gallons of rain on the southern United States after making landfall in Florida as a powerful category 4 storm on Thursday. The staggering volume of rainfall is sufficient to fill Lake Tahoe, which has a depth of 1,645 feet and a surface area of 191 square miles, or to fill 60 million Olympic-sized swimming pools. Additionally, this amount of water could fill the Dallas Cowboys' 80,000-seat stadium a remarkable 51,000 times.