From my understanding of what goes on during and after a hurricane, I think that duty is pretty rough for a flashlight.
First is the "event" itself -- certainly chaotic and possibly downright violent. You will have to grab-and-go to safety, wherever that is. 300 miles out of town, a local shelter, your attic. I read one account of a person calling from a cell as he was preparing to chop through his roof from the inside as the water was rising. Your light will have to both serve and stay with you during this time.
After the storm there will be a long period without power, during which you will be busy working. Repairs will need to be made, people will require assistance, all your daily routines will involve dealing with cleanup. It will be hot, wet, and stinky. I understand that it is common for people to spend the days working on their homes, "commuting" from the shelters until their spaces are suitable for sleeping. This is generally a week or more.
The way I look at it, this requires a kind of EDC-able light system. I would want a good lanyard and a light that was pocketable for the event. Afterward, during recovery, I would think a work light would be good -- something that can tailstand or can be used as a headlamp.
About runtime, if you are getting, say 6 hrs of sleep a night, that means maybe up to 6 more hours of activity by flashlight per night. Over 2 weeks that would be up to 84 hours of runtime required.
So here's what that translates into for me:
- pocketable size
- lanyard
- water and impact resistant
- long runtime, say more than 40 hrs
- easily available batts
Of my lights, my Princeton Tec XL comes closest to meeting those criteria. It is bright enough to work by, AA batts, tough as nails, and runs something like 50 hrs before you are in the dark. You could potentially "do" a hurricane without changing batts.
Scott