Dear work,
I cannot come in today because I have broken my legs or one of my siblings has become gravely ill and I need to attend to them or maybe I can't get to the office because it is snowing too much I am not sure I haven't looked.
It will take an approximate 60-100 hours for my legs or sibling to recover, or for the snow plow to come clear the road.
If anything needs my urgent attention, it doesn't.
Regards, Me