The San Francisco Chronicle reported in the last hour:
Typhoon Roke brought evacuation orders, downpours and fears of floods to southern Japan today as it began to traverse the country on a course towards the crippled Fukushima Dai-Ichi nuclear plant.
More than 400,000 people have been advised to evacuate because of Roke, public broadcaster NHK said.
Of primary concern are the efforts to mitigate damages at Fukushima from the March earthquake:
Roke, due in Fukushima prefecture in 48 hours, may hinder work to control leakage of water into the basements of the Dai- Ichi reactor buildings, which contained 102 million liters of radioactive water as of Sept. 13, according to Tokyo Electric estimates. Roke may drop 150 millimeters of rain on Fukushima within 24 hours, likely in short, heavy downpours, Kenji Okada of the Japan Meteorological Agency said by phone today.
The amounts of leaked water are significant:
…as much as 500 tons, or 500,000 liters, of underground water are leaking into Dai-Ichi buildings every day through cracks in walls and trenches, Tokyo Electric spokesman Hajime Motojuku said today.