NWS does not have any use for ham radio period. You cannot send video, voice, text, and GPS simultaneously in real time. Cell phone run circles around antiquated grandpas play radio.
I'm not sure where you got your information from. And it may not be the same in all geographic areas.
But on
https://www.weather.gov/cle/SKYWARN_About you can read what they say for yourself where it says,
<quote>
Skywarn™ and HAM radio operators?
HAM radio operators have a special place in the Cleveland SkywarnTM system. Our Cleveland weather office has HAM radio equipment on site. A Skywarn Net run by the volunteer amateur radio net control operators allow for reports from the field to be directly heard at the Weather Service.
<end quote>
I've been a Skywarn volunteer for over 40 years. Served as a coordinator, a net control operator, and
been a field spotter many times. My experience is that what our local NWS Forecast Office says
on their web site is pretty spot on.
Cell phones are great when they, and the underlying infrastructure they rely on works.
And it does work just fine 99+% of the time. Problem is, when something really goes sideways,
they don't. Our local NWS people know that. Most other NWS offices do too. With that being said,
our local office takes reports via cell phone too. They also gladly accept video after the
severe weather event is over.
73 de N8AUC
Eric