Sagamihara City, Kanagawa Prefecture, issued an "evacuation order" to more than 280,000 people in 140,000 households in the city, saying that heavy rain could cause a landslide disaster.
The breakdown by region is that Chuo Ward has 58,236 households and 98,646 people.
Midori Ward has 46,833 households and 103,101 people.
Minami Ward has 38,399 households and 82,402 people.
The "evacuation order" is information on alert level 4 out of 5 alert levels, and the city is calling for everyone to evacuate from dangerous places.