Mark Bould

In mid-summer 2013, Hurricane David swept up the west coast of Mexico, driving unprecedented numbers of sharks north into unfamiliar waters. On 11 July, the storm approached Santa Monica, forcing the disoriented predators into the shallows, where they attacked surfers and swimmers. Just minutes later, the hurricane hit. A prodigious storm surge raced inland, through West Los Angeles and beyond, spewing the voracious fish into the flooded streets. At the same time, the first of three massive water-spouts that would tear through the city formed and hurled sharks at unsuspecting Angelenos.
It was the first recorded sharknado.