Typhoon Lan and Japan Nuclear Power Stations.
“Powerful typhoon drenches Japan, soaks voters as they trudge to polls
Posted:Sun, 22 Oct 2017 03:39:46 -0400
TOKYO (Reuters) – Tens of thousands across Japan were advised to evacuate, hundreds of flights were canceled and rail services disrupted as heavy rain and wind lashed a wide swathe of Japan on Sunday, a national election day, as a powerful typhoon neared“. http://feeds.reuters.com/~r/reuters/environment/~3/si-9SOj0Ex4/powerful-typhoon-drenches-japan-soaks-voters-as-they-trudge-to-polls-idUSKBN1CR02N
Apparently the Fukushima area may get 10 meters (32 ft) waves.
Typhoon Lan offshore: “MAXIMUM SIGNIFICANT WAVE HEIGHT AT 220000Z IS 41 FEET” http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/warnings/wp2517web.txt
Sendai Nuclear Power Station and Ikata are apparently back in operation: https://en.wikipedia.org/wiki/Nuclear_power_in_Japan. Hamaoka and others not operating almost certainly have spent fuel still onsite, which still requires energy for cooling.
Source: Japan Meteorological Agency website