For the first time in recorded history, downtown San Francisco was issued a tornado warning on Saturday as severe storm ...

Less than two weeks after a tsunami warning, residents were jolted awake before 6 a.m. to consider a new potential disaster ...

San Mateo County emergency officials are developing a new method of communication to reduce misinformation and confusion ...

Douglas McIntyre, editor-in-chief of Climate Crisis 24/7, highlights San Francisco’s first-ever tornado warning, reflecting a ...

For the first time in recorded history, downtown San Francisco was issued a tornado warning on Saturday as severe storms swept through the city, just one week after a tsunami warning triggered ...

Last week's earthquake off the coast of Humboldt County triggered a tsunami warning urging people across a huge swath of California and Oregon to evacuate. Why aren't tsunami warnings more precise?

A tornado warning jolted cellphones in San Francisco but not Scotts Valley, where a severe thunderstorm was forecast. Now ...