It is for getting food and supplies to market. A large crippling storm has a major effect on transportation and logistics, and at a time when it's critical to get (and try to keep) food and necessary items on the store shelves, a disruption could cause major problems. Then there are the first responders, as well as other essential business workers, who could be impacted by delays, or not being able to otherwise, under normal conditions, make it into work or wherever they need to be.
I know "Mother Nature" will do what she's going to do regardless of how it impacts us, but I really and sincerely hope for mild and benign weather right now while we battle this medical, and budding financial, crisis.