Disaster Preparedness | Heavy Rain Warning Levels and Evacuation Decisions, Set 3
Problem 1
You live in a projected flood zone with your grandfather, who needs extra time to walk. The city issues Warning Level 3, “Evacuation of the Elderly, Etc.” What is the most appropriate action?
View explanation
At Level 3, people in dangerous areas who need more time to evacuate, together with those assisting them, should begin moving. Leaving the helper behind does not provide a safe evacuation. Others should also suspend activities as needed, prepare, or evacuate voluntarily.
Problem 2
Your home is in a projected river flood zone and receives a Warning Level 4 evacuation instruction. Roads are still passable and you can reach a safe destination selected in advance. What is the most appropriate action?
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At Level 4, everyone in a dangerous area should evacuate. Move while the route remains safe. Level 5 is not a target to wait for; a disaster may already be occurring or imminent, making evacuation outside unsafe.
Problem 3
Warning Level 5, “Emergency Safety Measures,” is issued, and the road outside your home is already deeply flooded. Your upper floor is not flooded. What is the most appropriate action?
View explanation
Level 5 is an extremely dangerous stage when evacuation outside may no longer be safe. Under these conditions, stay out of the flooded road and immediately move upstairs or take another action most likely to protect life. Safe evacuation should normally be completed by Level 4.
Problem 4
Your home is in a flood-risk zone, but relatives outside the zone agree to receive you early and the route is safe. Which advance evacuation plan is most appropriate?
View explanation
Evacuation destinations are not limited to designated shelters. A relative’s home or hotel outside the risk zone can be used when the route and reception arrangements are confirmed beforehand. Waiting for intense rain may eliminate the safe travel window.
Problem 5
Which condition best supports a plan to remain in the building and move upstairs during heavy rain?
View explanation
Remaining indoors is an option only when the building is safe and has a floor above the projected flood depth. It is unsuitable where landslides, structural failure, or flooding above the safe floor may occur.
Problem 6
The municipality has not issued evacuation information, but Kikikuru shows risk rising rapidly around your home and the evacuation route is currently safe. What is the most appropriate approach?
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Kikikuru and other warning-level-equivalent information support residents’ own evacuation decisions. You do not have to ignore them until a municipal instruction arrives. Consider acting early based on the local and household risk while a safe route remains available.
Problem 7
You want a map showing the danger that intense short-duration rain may flood low roads and basements in a city with no nearby river. Which information best fits that purpose?
View explanation
Inundation Kikikuru shows the risk of rainwater flooding low ground, roads and buildings during intense short-duration rain. Landslide Kikikuru addresses slope failures, while Flood Kikikuru mainly addresses rising and overflowing rivers.
Problem 8
At a home in a landslide warning zone, Landslide Kikikuru turns purple, meaning “Danger.” The outdoor evacuation route remains passable. What is the most appropriate decision?
View explanation
Purple on Landslide Kikikuru means Danger, equivalent to Warning Level 4. In a landslide warning zone, evacuation should begin no later than this stage. Waiting for black, which indicates an imminent disaster, may make evacuation outside unsafe.
Problem 9
The JMA issues information on record-breaking short-duration rainfall. What is the most appropriate interpretation?
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The information means exceptionally intense short-duration rain is occurring and may lead to landslides, inundation, or flooding of smaller rivers. It does not confirm one particular damage outcome everywhere. Check Kikikuru and municipal information and choose an appropriate action immediately.
Problem 10
During heavy rain, you want to check slope failure, surface-water inundation in low areas, and rising water in a nearby small river. Which combination is most appropriate?
View explanation
Although all three are heavy-rain hazards, slope failure, surface-water inundation and river flooding develop differently. Use the corresponding Landslide, Inundation and Flood Kikikuru displays, together with municipal evacuation and river information where appropriate.