Evacuation orders issued for 400,000 as torrential rains hit Chiba prefecture as flooding risks remain high despite rainfall easing

At least four people died in eastern Japan after “unprecedented” heavy rain that left nearly 7,000 stranded at Tokyo’s Narita airport, and forced thousands to take refuge in government buildings.

The torrential rains hit Chiba prefecture, east of Tokyo, on Thursday night, triggering landslide warnings and power outages. Evacuation orders were issued for more than 400,000 people in Chiba and other areas, and about 45,000 homes lost power, as 115mm of rain fell hourly, approximately the same amount usually recorded for the whole month of August.