Personally, work would take a very far distant second to being home with the family during a major storm. Got to have priorities, the job should understand. Not that I expect they would, but a decent place would.
Second, 4 calls in 15 months? I wish my record was that stellar. Don't sweat it.
Third, I commute, and never pay attention to the weather. It's not part of the equation when it comes to my commute. Granted, it's also not part of our commuter clause either. Good luck.