About -1 degrees
no you cannot be outside during a blizzard
You can, but it is not a good idea. During a blizzard you should not go outside unless you absolutely must.
cold
a warm air and a cold air forms a blizzard
It mean cold.
Rain, blizzard, thunderstorm, tornado, hurricane, very cold temperature.
Cold
Blizzard since it it is so cold and strong winds
This is would be a cold front.
Probably.
No, it is not a good idea. If there is a blizzard stay inside unless it is absolutely necessary to go out.
I'm not sure but I'm guessing it has to be at about freezing (32 degrees Fahrenheit) for a blizzard to form.