We see weather headlines year round from winter to severe weather in the summer, but there is a set hierarchy to them.

PDS warnings were first used to warn of tornado ... Johns, in conjunction with a tornado watch. Smoke from the Palisades Fire rises over a ridge as seen from the Encino section of Los Angeles ...

A tornado watch was posted for 24 counties in east Texas, with the National Weather Service warning: “This is a particularly dangerous situation with the possibility of very damaging tornadoes.” ...

PDS warnings were first used to warn of tornado ... Johns, in conjunction with a tornado watch. That came after a “failed attempt in the late 1970s," Johns said in an interview in the Electronic ...

A tornado watch was posted for 24 counties in east Texas, with the National Weather Service warning: “This is a particularly dangerous situation with the possibility of very damaging tornadoes.” ...

A tornado watch was posted for 24 counties in east Texas, with the National Weather Service warning: “This is a particularly dangerous situation with the possibility of very damaging tornadoes.” ...

PDS warnings were first used to warn of tornado ... Johns, in conjunction with a tornado watch. That came after a “failed attempt in the late 1970s,” Johns said in an interview in the ...

tornado watches where there is a risk of multiple EF2 or stronger tornadoes or alongside a tornado warning meaning the tornado is on the ground has been spotted or confirmed.The PDS is currently ...