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Prepare for heavy rains and typhoons

Last Updated August 19, 2021

1.Daily preparation-Preparation in case of emergency

Let's check the familiar situation on the hazard map!

・Check that there is no cliff near your home (earth and sand disaster hazard map)
・Make sure that there is no risk of flooding near your home. (Inundation Hazard Map)
・Check the evacuation route from your home to the evacuation center on the map.
・Going to evacuation sites is not the only evacuation action. Consider evacuation behavior and evacuation sites in advance, such as keeping safe relatives, friends' homes and hotels in evacuation sites.
[Be careful when considering evacuation routes]
・Check multiple evacuation routes so that you can evacuate to two or more evacuation centers.
・Avoid roads that may be closed due to flooding due to heavy rain or landslides.

Let's check the items to be taken out during evacuation!

・Prepare items to be taken out during evacuation on a daily basis so that you can take them out immediately.
・Let's keep the items to the minimum necessary. (Radio, drinking water, flashlights, pharmaceuticals, baby supplies, etc.)
・Prepare masks, alcohol, thermometers, etc. as a countermeasure against infectious diseases.

Let's work together to protect our town!

・In the event of an emergency, cherish your relationship with your neighbors on a daily basis so that you can help each other.
・Create a system that can cooperate in the community in order to protect the safety of people who are difficult to respond flexibly, such as evacuation behavior in the event of a disaster due to disability or elderly people.
・Let's talk about the cooperation system in the event of a disaster with nearby social welfare facilities in the community on a daily basis.
・disaster drill, evacuation drill, and lectures will be held to acquire knowledge about disaster prevention.
・If evacuation warning or the like comes out, call out to the neighborhood and take the initiative in evacuating.

Let's register in the disaster prevention information e-mail!

・We provide disaster prevention information to registered e-mail addresses of PCs and mobile phones.
You can register from the link below.
http://translate-en.city.yokohama.lg.jp/somu/org/kikikanri/email/

2.When it rains~ Let's be careful about this point

Let's try to collect information frequently on your own!

Please check the information frequently on the Japan Meteorological Agency website and the Yokohama City website.
・Japan Meteorological Agency website (weather information) (outside site)
・Yokohama City Disaster Prevention Information
Be especially careful if you receive earth and sand disaster warning information.
Click here for earth and sand disaster alert information (Japan Meteorological Agency homepage) (outside site)

Let's be careful about the condition of the cliff!

A phenomenon of a landslide
・Pebbles fall from the cliff.
・New spring water is generated on the slope.
・The spring water is muddy.
・There is a crack on the slope.
If there is such a precursory phenomenon, take evacuation action as soon as possible.
In addition, there may be no time from the occurrence of a precursory phenomenon to the occurrence of a landslide, or there may be no precursory phenomenon and a landslide may occur.
If you feel danger, take early evacuation actions.

Let's try to evacuate safely without overdoing it!

When evacuating, wear comfortable clothes and try to act with two or more people.
If the surroundings are dark and the flooding has already begun, do not force yourself to go out and stay in a high place where you can secure safety, such as the second floor of your home.

Let's evacuate on a safe route!

・At the time of evacuation, avoid roads along rivers and cliffs and underground roads.
・Heavy rain may cause gutters and manholes on the road to come off, so be careful not to approach them.

3.When evacuation information comes out-Evacuation actions to save lives

Evacuation Information

Evacuation Information
Evacuation InformationEstimated announcementYour actions

Alert level 3
Evacuation of elderly people, etc.
  
From dangerous places
Evacuate elderly people!

[River flooding]
・When the water level reaches the "evacuation judgment water level" and the water level is expected to continue to rise due to rainfall in the upstream area.
・When minor water leakage, erosion, etc. is discovered
・When it is expected that the evacuation warning will be issued from night to dawn
  
[Landslide Disaster]
・Warning level 3 When a typhoon with strong rainfall that requires evacuation of the elderly, etc. is expected to approach or pass at dawn from night.
・Even in the daytime, typhoons are expected to announce "earth and sand disaster alert information", which may hinder evacuation due to the effects of wind and rain, and it is necessary to call on citizens to evacuate as soon as possible.

If you need time to evacuate, such as the elderly, children, people with disabilities, or people with illness, please start evacuation voluntarily as soon as possible.
Those who support evacuation should also start supporting actions.
   
"Evacuation" means an action to avoid difficulties, and "Going to an evacuation center is not the only evacuation."
Consider evacuation to safe relatives' homes, acquaintances' homes, hotels, etc.

Alert level 4
evacuation warning
  
From dangerous places
Everyone evacuates!

[River flooding]
・When the flood danger water level is reached
・When the water level reaches the “flood danger water level” and the water level is expected to continue to rise due to rainfall in the upstream area.
・When there is a risk of flooding due to a sudden rise in water level when the water level exceeds the "inundation caution water level"
・When a typhoon approaches and passes at dawn from night when it exceeds the "flood warning water level", and a large amount of rainfall is expected, such as the announcement of a heavy rain warning, etc.
・When abnormal water leakage, erosion, etc. is discovered
  
[Landslide Disaster]
・When earth and sand disaster alert information is announced
・When a heavy rain warning (earth and sand disaster) has been announced and record short-term heavy rain information is announced.
・When a precursor to a landslide disaster is discovered

Start evacuation at evacuation sites and other places.
Evacuate and evacuate to a safe place outside the inundation area and start evacuation.
  
"Evacuation" means an action to avoid difficulties, and "Going to an evacuation center is not the only evacuation."
Consider evacuation to safe relatives' homes, acquaintances' homes, hotels, etc.
 
 
  
  
Evacuate and evacuate to a safe place outside the landslide warning area and start evacuation.
If it is difficult to evacuate to evacuation sites, evacuate to the second floor or higher of the building (the room opposite the slope).

Alert level 5
Emergency safety

[River flooding]
・Koshimizu, when there is a risk of flooding
・When the risk of collapse increases due to abnormal water leakage, erosion progress, cracks, slides, etc.
・Rupture, outbreak of Koshimizu and flooding
・When "Inundation Information" is announced
・When malfunctions of facilities such as gutters and sluice gates are found
  
[Landslide Disaster]
When requesting an action to ensure "emergency" safety, such as vertical movement to the other side of a cliff, etc.
・When landslide warning information has been announced and record short-term heavy rain information is announced.
・In the event of a landslide disaster
・Evacuation and evacuation by evacuation warning is not enough, and it is necessary to encourage residents to evacuate and evacuate again.
If necessary
・When a mountain ringing or driftwood spill is confirmed

Please evacuate to evacuation sites immediately and evacuate.
If it is already dangerous outside and it is difficult to evacuate to evacuation sites, please ensure your safety immediately as the danger of life is imminent, such as moving to a high place that is less likely to be flooded at home or in a nearby building.
 
  
  
  
Please evacuate to a safe place immediately and evacuate.
If it is already difficult to evacuate to evacuation sites because it is already dangerous outside, evacuate to the second floor or higher of the building (room opposite the slope).

Information gathering

In Yokohama City, when communicating evacuation warning, etc. to citizens, the following means are used.
・Disaster prevention information e-mail
We provide disaster prevention information to registered e-mails on PCs and mobile phones.
You can register from the link below.
http://translate-en.city.yokohama.lg.jp/somu/org/kikikanri/email/
・Provision of information via "Emergency Bulletin Mail"
Information will be delivered to mobile phones that support emergency bulletin emails in the target area. Please check below if your mobile phone is compatible.
http://translate-en.city.yokohama.lg.jp/somu/org/kikikanri/kinkyumail/
・Information provision via the “Homepage”
evacuation warning and others will be distributed through the Midori Ward website.
・Information provision by public relations vehicles, etc.
Depending on the situation, we will carry out calls by public relations vehicles and fire trucks.

voluntary evacuation

For sediment-related disasters,voluntary evacuation should be immediately started without waiting forevacuation warning, etc., if a different precursor is confirmed.

Based on the lessons learned from Typhoon No. 18 in October 2014, Yokohama City decided to extract cliffs that could cause significant damage to houses in the event of a landslide, and to issue a "evacuation warning" with the announcement of "Earthquake Disaster Warning Information" to the surrounding area.
It does not mean that the area where evacuation warning has not been issued is safe. In the event of a heavy rain or typhoon, pay attention to disaster prevention information and take evacuation actions as soon as possible at your own discretion.
Areas subject to evacuation warning and selection criteria are as follows:
◇List of target areas (list of text format and map)
◇Target area (ArcGIS Online) (external site)
The target area map may be difficult to browse, such as when a large number of access is concentrated.
If you are unable to browse, please contact the Midori Ward Office General Affairs Division below for more information about the area within Midori Ward.
Selection criteria for the target area

[Contact]
ContentsDepartment namePhone numberE-mail address

Details of areas subject to evacuation warning
About it

Midori Ward Office General Affairs Division045‐930‐2208

md-somu@city.yokohama.jp

To evacuation warning, etc.
Things related to

General Affairs Bureau Emergency Response Division045-671-2064
(Weekdays from 9:00 to 17:00)

so-kinkyu@city.yokohama.jp

Thing about field investigation of cliff ground

Housing and Architecture Bureau Building Disaster Prevention Section045-671-2948

kc-kenchikubousai@city.yokohama.jp

Inquiries to this page

Midori Ward General Affairs Department General Affairs Division

Telephone: 045-930-2208

Telephone: 045-930-2208

Fax: 045-930-2209

Email address: md-somu@city.yokohama.jp

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Page ID: 430-295-156

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