"We don't want to be lighting phones up every 10 minutes."

As dark clouds and lightning bore down on Central Florida last weekend, countless cellphones in the region vibrated and sounded off with a dire message: "Tornado Warning in this area. …Take shelter now."

Many cell owners were surprised and wondering how the alert showed up on their phones.

Phones from Sanford to Walt Disney World sounded off as part of the federal government's Wireless Emergency Alerts system set up in 2012 for Amber Alerts and warnings about terror threats, chemical spills, tsunamis and potentially deadly weather.

Read more at the Orlando Sentinel.