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Last updated on August 19, 2021.

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Prepare for heavy rains and typhoons

1.Daily preparation-Preparation in case of emergency

Let's check the situation around hazard map!

・Make sure there are no cliffs near your home (hazard map landslide)
・Make sure that there is no risk of flooding near your home. (Inundated hazard map)
・Let's check the evacuation route from home to refuge on a 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 thinking about evacuation route]
・Check multiple evacuation routes so that you can evacuate to two or more evacuation centers.
・Avoid roads that could be flooded by heavy rain or closed by landslide.

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 for disaster prevention information e-mail!

・disaster prevention information is provided to the e-mail addresses of registered PCs and mobile phones.
You can register from the link below.
http://www.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-shi disaster prevention information
Be especially careful if you receive earth and sand disaster warning information.
Click here for landslide alert information (Japan Meteorological Agency website) (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 is expected to continue rising due to rainfall in the upper reaches of evacuation water level.
・When minor water leakage, erosion, etc. is discovered
・When it is expected that the evacuation warning will be issued from night to dawn
  
[landslide]
・Warning Level 3 When a typhoon with strong rainfall that requires a warning level 3 evacuation of elderly people, etc. is expected to approach or pass at dawn from night.
・Even during the daytime, typhoons are expected to announce the landslide 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" refers to actions to avoid difficulties, and "Going to refuge 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 reaching flood risk water level
・When the water level is expected to continue rising due to rainfall in the upper reaches of flood risk water level.
・If the water level exceeds flood warning level and there is a risk of flooding due to a sudden rise in water level.
・When a typhoon approaches and passes at dawn from night and is expected to exceed the flood warning level,heavy rain warning and other events.
・When abnormal water leakage, erosion, etc. is discovered
  
[landslide]
・If landslide alert information is announced
・When record-breaking deluge in a short period information is announced in situations where heavy rain warning (earth and sand disaster) has been announced
・When a precursor of landslide 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" refers to actions to avoid difficulties, and "Going to refuge is not the only evacuation."
Consider evacuation to safe relatives' homes, acquaintances' homes, hotels, etc.
 
 
  
  
Please 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 measures for assuring 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 "flood information" is announced
・When malfunctions of facilities such as gutters and sluice gates are found
  
[landslide]
When requesting an action to ensure "emergency" safety, such as vertical movement to the other side of a cliff, etc.
・If the landslide alert information was announced and the record-breaking deluge in a short period information was released.
・If landslide occurs
・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 e-mails on registered PCs and mobile phones.
You can register from the link below.
http://www.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://www.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

As for landslide, there are many cases where there is no time to spare from precursors to collapse, so if you find unusual precursors, please start voluntary evacuation immediately without waiting for evacuation warning.

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 the evacuation warning along with the announcement of the landslide alert information.
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, be aware of the disaster prevention information and take evacuation actions 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 nameTELE-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

Phone: 045-930-2208

Phone: 045-930-2208

Fax: 045-930-2209

E-Mail address md-somu@city.yokohama.lg.jp

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Page ID: 430-295-156

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