We get occasional blizzards where I live. Also, where I live (resort area) are many senior citizens barely able to live alone.
Some of these folks travel daily for things like dialysis treatments, etcetera. Others are on 24 hour oxygen provided by plug-in concentrators or use machines for apnea, COPD, etcetera. Furnaces for heating require electricity, as do water pumps.
Also, where I live we have electricity provided by a local rural electric cooperative with most of the power lines supported by wooden poles. The area is heavily forested and power lines are difficult to access in the best of conditions.
Fragile people have letters from doctors placing them on a priority list when electric service goes down, but it’s no sure thing that power will be restored soon.
I have a police/fire/emergency (including electric utility workers) scanner that allows me to monitor activities continuously, even during blizzards (provided I fire up my stand-by generator). Ambulance runs are quite common.
Travel by emergency vehicles becomes impossible or nearly so during a blizzard. It sometimes takes days, not hours for all roads to be opened.
Trust me. Blizzards can kill day or night. They are inconvenient for me and are often quite scary, but for the vulnerable they are deadly.