Property damage and losses due to hurricane events are entered as casualty losses. There is special consideration for federally declared natural disasters and areas with Congressionally granted relief, so I am including that information below, as well as the second link which includes steps for how to enter the loss information:
https://ttlc.intuit.com/replies/6469982
https://ttlc.intuit.com/replies/3301959
How can I prove what I lost?
The IRS recognizes how difficult that can be. They have an extensive list of suggestions for how to establish what you lost.
Related Information: