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Sometime between Thursday morning and Friday morning, the Brunswick Nuclear Reactors were powered down: https://www.nrc.gov/reading-rm/doc-collections/event-status/reactor-status/2018/2018PowerStatus.txt

On Saturday afternoon a report was sent to the US NRC, apparently due to inaccessibility of the Brunswick nuclear power station site, starting midnight Friday/Saturday, due to flooding of local roads. Flooding of area roads should not be a surprise. As can be seen on the top map, the nuclear power station is surrounded by water:
UNUSUAL EVENT DUE TO SITE CONDITIONS PREVENTING PLANT ACCESS
“A hazardous event has resulted in on site conditions sufficient to prohibit the plant staff from accessing the site via personal vehicles due to flooding of local roads by Tropical Storm Florence.”

Notified DHS SWO, FEMA OPS, and DHS NICC. Notified FEMA NWC, NuclearSSA, and FEMA NRCC via email.
Notification Date: 09/15/2018
Notification Time: 15:45 [ET]
Event Date: 09/15/2018
Event Time: 00:00 [EDT]
Last Update Date: 09/15/2018
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2018/20180917en.html

https://www.nhc.noaa.gov/archive/2018/al06/al062018.public.063.shtml?

There is no reason to believe, based on the information availiable, that the site itself flooded – though if the hurricane had been stronger and come in further south it could have flooded. There is always the risk of a sump pump failure, too, leading to flooding from rainfall. Additionally, the workers have been stuck sleeping on cots, and are probably sleep deprived. We also don’t know what lack of water to flush toilets means? Or did they really mean lack of sanitary sewers? For reactor cooling, intake is from the Cape Fear River, and outfall to the ocean. Is there a water intake issue due to flooding? If so, how are they cooling the reactors and spent fuel? There should be documents at the NRC gov web site discussing the design, etc., for Brunswick. But, as long as the occupant of the White House is someone who will say of a nuclear accident that his nuclear accident was the most beautiful of all, we will leave more indepth research to those who think that Putin has been unjustly demonized and blah, blah, blah.

https://miningawareness.wordpress.com/2018/09/13/brunswick-nuclear-power-stations-cliff-edge-barriers-appear-to-fall-almost-8-feet-short-of-required-storm-surge-protection-level/

Floods limit access to Duke’s Brunswick nuclear plant; crews use porta-potties, cots” BY JOHN MURAWSKI, NewsObserver/The Herald Sun, http://archive.is/y4pUM

The following is an excerpt from a document about problems and lessons supposedly learned from Hurricane Andrew: “Adequacy of Timing of Plant Shutdown in Anticipation of a Hurricane: Turkey Point procedures for timing of a plant shutdown in anticipation of a hurricane require that the plant be in at least Mode 4 (i.e., hot shutdown) 2 hours before the onset of hurricane-force winds at the site. Estimating 8 hours to complete an orderly shutdown, the licensee began a plant shutdown approximately 12 hours before the predicted landfall of the hurricane. As a result, both units were in Mode 4 when Hurricane Andrew struck. However, the licensee commitments in response to the station blackout rule only require the licensee to commence shutdown at least 2 hours before the onset of hurricane-force winds. Therefore, starting a plant shutdown strictly in accordance with the licensee commitments could have resulted in the plant being in the midst of a dual-unit shutdown when offsite power was lost. Additionally, at Turkey Point (and at other commercial reactors susceptible to hurricane damage), important equipment (e.g., auxiliary feedwater) is located outside and likely would not be accessible during a hurricane.” https://www.nrc.gov/reading-rm/doc-collections/gen-comm/info-notices/1993/in93053.html

Florence flooding limits road access to Duke nuclear plant
 Posted:Mon, 17 Sep 2018 17:23:28 -0400
Duke Energy Corp said on Monday that its Brunswick nuclear power plant in North Carolina remained safely shut down despite limited road access to the site due to flooding from storm Florence“. http://feeds.reuters.com/~r/reuters/environment/~3/6ZjhBDn5jfs/florence-flooding-limits-road-access-to-duke-nuclear-plant-idUSKCN1LX25N

Great explanation about midnight: http://www.npl.co.uk/reference/faqs/is-midnight-12-am-or-12-pm-faq-time


https://www.nrc.gov/reading-rm/doc-collections/cfr/part050/part050-0002.html
https://www.npr.org/2018/09/13/647358237/hurricane-florence-weakens-a-bit-as-it-closes-in-on-north-carolina-coast