It can be, use common sense, travel in well lit areas, with frequent traffic, etc.
The adverbs are often (walks), quickly (walks), and always (late).
You are going to be late: Vas a llegar tarde. I'm going to be late: Voy a llegar tarde.
Coming late and going late is bad punctuality. Good punctuality is being on if not before the time set
really dangerous becauze people can go blind by the flashes.
Maybe, there is going to be!
probably not
It is not dangerous, it just means you are worried about something that has already happened. To late, its done.
The late afternoon and early evening are generally the most dangerous time for tornadoes.
dangerous
It is going to kill you.
You should contact your immediate supervisor as soon as you know that you are going to be late, and let that person know.
a bear