The Japan Meteorological Agency has issued the highest-level heavy rain emergency warnings to Tokyo and 11 other prefectures.
Earlier, the officials issued warnings for Tokyo and six prefectures, namely, Shizuoka, Kanagawa, Saitama, Gunma, Yamanashi and Nagano. Later they added five more prefectures, Ibaraki, Tochigi, Niigata, Fukishima and Miyagi..
Agency officials are urging people to take all necessary precautions to protect their lives, telling them to stay in strong buildings nearby or go to higher floors avoiding any slope, if it is dangerous to go to emergency facilities.
A record-level downpour of nearly 1,000 millimeters fell on Hakone Town in Kanagawa Prefecture during a 48- hour period to 8 p.m.
The agency forecasts rainfall of 400 millimeters for the Hokuriku region, 300 millimeters for Tohoku region and 250 millimeters for Kanto-Koshin area until Sunday evening.
Hagibis is also expected to bring violent winds to some areas. A maximum wind speed of 162 kilometers per hour is forecast for Izu Islands, 144 kilometers for the Kanto area, and 126 kilometers for the Tohoku region.