Facebook Rolling Out Local Emergency Alert Tool Across The Country

The video discusses Facebook's emergency alert tool, which sends alerts to users' feeds and allows local authorities to target specific users. Tested since 2018, it has been used during emergencies like Hurricane Berry. A survey showed 73% of users learned something new, and 43% took action. The tool will be rolled out across the US by year-end. However, the National Oceanic Atmospheric Administration emphasizes the importance of weather radios, which don't rely on electricity and can function during power outages, as seen in Puerto Rico after Hurricane Maria.

Why does the National Oceanic Atmospheric Administration emphasize the importance of weather radios?

What happened to Puerto Rico's power grid during Hurricane Maria?