If they say today that it will be 60 on Wed and then tomorrow change it to 55. Count on it being 50 because they will only half admit how wrong they were.
I would say they exaggerate with their warnings but not really. There's always a chance that the worst of it will hit some small sub-part of the forecast area.
We don't have TV so if the internet's down so I can't watch the radar and we're having extreme weather, I break out the scanner with weather radio.
To this day, my adult autistic son is soothed by that mechanical sounding voice on the Wx system.
There is no better system for finding out a tornado was just spotted two counties over and the system is or isn't headed your way.
A weather radio really is a must for anyone living in tornado alley.
We have a weather radio, get notifications on our phones and have two of the hand-crank radios.
So, I’d recommend having a hand-cranked radio, too. They make some now that can also re-charge your phone if needed.
https://gearjunkie.com/technology/best-emergency-radio