The National Weather Service (NWS) issued dozens of alerts on Tuesday ... Upon receiving a warning, it's imperative to take immediate action by seeking shelter in a safe location.

A watch means a tornado is possible, while a warning means a tornado has been spotted. Knox County doesn't use outdoor tornado sirens because alerts can provide more specific information ...

MARIN COUNTY — A red flag warning in Marin County has residents in the region on high alert. Leah Curran has been a Marin County resident for four years since moving from Oakland with her family.