There was some concern about how Hurricane Sandy would impact on the safety of nuclear power plants on the US East Coast.
So far, though, so good. Only one report of water rising high enough to trigger an alert (from the US Nuclear Regulatory Commission):
The NRC continues to monitor impacts of Sandy on nuclear power plants in the Northeastern U.S., including an Alert declared at the Oyster Creek nuclear power plant in New Jersey. The plant, currently in a regularly scheduled outage, declared the Alert at approximately 8:45 p.m. EDT due to water exceeding certain high water level criteria in the plant’s water intake structure.