Another reminder....
Walkie-talkie apps on smartphones, like Zello, still require working
Internet access. They don't work without cell or wifi service and
internet access. Zello keeps reminding people, it REQUIRES internet
access; but people don't get it.
https://www.reuters.com/article/factCheckNew/idUSL1N2Q31SN
Only about 5% of households have a NOAA/Weather radio with battery backup
(slightly higher in tornado alley).