Flash flood warnings are common ... alert will trigger your smartphone to screech loudly, known as a wireless emergency alert. If you're in a flash flood emergency: Move to higher ground immediately.

and Flash Flood Warning. There is also an alert called a Flash Flood Emergency, but this is very rare. I'll explain what each of these alerts mean in this week's Weather Wisdom segment using 3D ...

Los Angeles County is the focus of a flash flood warning issued at 6:09 p.m. on ... For “considerable or catastrophic” hazards, emergency alerts will be sent to all enabled mobile phones ...

San Bernardino County is under an updated flash flood warning which was released by ... For “considerable or catastrophic” hazards, emergency alerts will be sent to all enabled mobile phones ...