Once the Mid-Atlantic goes under a Hurricane Watch, insurance companies suspend writing for all new homeowner's policies until the status clears. If you do not already have your insurance binder in place before you settle, the lender will not allow you to go to settlement.
If you don't settle due to lack of a written insurance policy and your home is in the area of the Hurricane, the lender may demand a lender inspection. This lender inspection is to protect their interest before lending you the purchase money on the home. They will verify that the property still exists and has not been damaged by the Hurricane.
Meanwhile, the seller can't move on and you can't move in. Plus, any delay in settlement that is your fault as the buyer could be costly under performance in your purchase contract. Be sure that you have your coverage in place. Talk with both your real estate and insurance agents regarding your position now before it's too late. This way, every one can move according to plan.