Should I reschedule

So I live in KY and tonight and tomorrow morning there’s suppose to be a ice storm. Well I have a growth scan scheduled for tomorrow morning. I’ll be 33w1d. The office is about a 20 minute drive from where I live and I’m worried about driving on the road. But my doctors office is always booked with ultrasounds. Like I tried to reschedule this one last week and they said the next one won’t be for two more weeks.

So I feel like if I ask to reschedule this I won’t get a growth scan until like 36 weeks. I’m not high risk, but I don’t want to wait until 36 weeks to make sure the baby is okay, especially if something is wrong with him you know?