By the time the tornado siren sounded one week ago, the roof of Sydney Moore’s mobile home in Clarksville, Tennessee, had been sheared off and her 4-month-old son Lord sucked up by the twister.

“There was no warning,” said Moore, 22, who immediately moved to shield her 1-year-old son, Princeton, with her body.

Moore’s boyfriend, Aramis Youngblood, 39, rushed to protect Lord, who was sleeping in a bassinet swept up in a swirl of wind and debris Saturday evening as a series of powerful tornadoes and storms tore through the state.