Winter winds around here are generally from the North, and light in the morning (so no factory), only picking up in the pm, by which time they tend to blow me home.
Weather forecasters here are so gunshy about weather, I think they always overestimate to worst case and beyond. I guess my Murphy's input would be
#6: If you cancel your commute due to a scary forecast, it will end up being the most beautiful day of the year.