Residents along Glencannon Drive were expecting rain. But instead they got a tornado that downed trees and damaged several homes.

An EF0 tornado touched down in Los Angeles County early Thursday morning, causing damage to a Pico Rivera neighborhood, the National Weather Service said.

But why wasn't a major alert sent to all the residents nearby?According to Doctor Ariel Cohen with the National Weather Service, the tornado hit at about 3:15 a.m. It touched down in Pico Rivera and barreled along a one-mile path with a width of approximately 80 yards.