If the storm strikes to the east very much at all, they will be OK.
The wind circulation will mean, if the storm is to the east, that the winds will be northeasterly, and blow most of the water away from NO.
The lake would tend to 'slosh' over from the north, but that is minor compared to what a direct or just-westerly glance would do.
Someday, NO will be no more.
Ed