How Much of Our Neighborhood Could Be Flooded? Flood Risk Map and Water Level Service
An official service to check expected flood areas along with real-time weather, water level, and road control.
The question of how much of our neighborhood could be flooded often comes to mind during heavy rainfall, but by then, there might be little time to decide. Typhoons and heavy rainfalls increase danger not just due to rainfall amounts but also because of terrain, drainage systems, river levels, and movement paths.
This guide organizes official action plans step-by-step, focusing on using preemptive risk maps and real-time alerts for evacuation strategies. It avoids repeating general typhoon preparedness lists and inspections around the home and instead emphasizes what signals to look for in specific locations and at specific times to stop moving or evacuate.
Relying on a single source for safety information is insufficient. Weather advisories and radar give current conditions, flood risk maps offer preemptive scenarios, and disaster text alerts and on-site controls inform you of actions you need to take right now. Since they serve different purposes, it's essential to check them all together.
The most crucial consideration is the preservation of human life over vehicles and belongings. Don't test water depth after it has risen or descend back underground; instead, plan high grounds, stairways, and detours in advance. During an actual event, always follow the guidance of fire departments, police, and local governments first.
Flood Risk Map Information System
Flood Risk Map Information System is a tool for assessing expected ranges and depths of river flooding and urban flooding. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize identifying the flood depth scenarios and high movement directions around your address. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you conclude that there is absolutely no flooding outside the map. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Flood Alimi
Flood Alert System
Flood Alert System is a tool for assessing the water levels of major rivers nationwide and corresponding flood advisories. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize observing changes in water levels and advisories from nearby observation stations together. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you ignore flooding risks considering only one observation station's value. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Living Safety Map
Safety Map
Safety Map is a tool for assessing disaster, security, and traffic-related safety information by region. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize comparing signs of flooding and evacuation facilities with other maps. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you misinterpret different criteria's map colors as the same risk level. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Meteorological Administration Weather Nuri
KMA Weather Nuri
KMA Weather Nuri is a tool for checking heavy rain advisories, radar, and ultra-short-term precipitation information. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize assessing the current rainfall flow against the flood risk map. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you only review daily forecasts and miss updates on advisories and radar. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Korean Safety 24
National Safety 24
National Safety 24 is a tool for providing disaster texts, action guidelines, and evacuation information. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize confirming regional alerts and local government evacuation guidance. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you solely focus on map searches and delay following on-site evacuation instructions. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Disaster Safety Data Sharing Platform
Disaster Safety Data Sharing Platform is a tool for assessing public data and related materials by disaster type. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize confirming the timing and descriptions of the regional data provided. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you use research and analysis data as real-time field alerts. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Seoul Safety Nuri
Seoul Safety Nuri is a tool for assessing disaster situations, disaster maps, and safety information in the Seoul region. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize viewing the local guide for the Seoul address along with national maps. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you assume the same information is provided for different regions. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
National Traffic Information Center
National Traffic Information Center is a tool for assessing traffic communication and control information on highways and major roads. Since the risks during typhoons and intense rain can change depending on time and terrain even in the same area, do not assume safety based on just one map or one advisory.
When checking, prioritize setting detours to avoid flooding sections before departure. Set defined paths and high places before signals of danger appear, and when on-site control lines or evacuation guidance from officials begin, prioritize the movement of people over vehicles and belongings.
Especially avoid situations where you rely solely on navigation routes and cross on-site control lines. Do not test the depth and speed of water on your own; instead, follow the latest disaster texts, weather advisories, and guidance from fire departments, police, and local governments.
Responding to typhoons and floods is more about acting decisively when danger signs appear than memorizing a lot of information. If water enters underground spaces or roads become obscured and on-site controls begin, you should abandon vehicles and belongings and move to a higher location.
Once you've checked how to use preemptive risk maps and real-time alerts for evacuation planning, take a look at the higher roads, emergency stairs, and evacuation facilities near your home and workplace. Even routes that appear safe on the map can be blocked by construction, restrictions, or actual flooding, so it's better to decide on multiple paths to take.
Weather forecasts and risk maps are tools for ensuring preparation time, not guarantees of absolute safety. Strong winds and downpours can occur outside of predicted ranges, and small underground spaces or alleys not shown on maps can become dangerous quickly.
Make sure to briefly agree with your family on who will help whom and where to meet again. It's helpful to have disaster alert notifications on your mobile phone and to familiarize yourself with the address and nearby landmarks to report when calling 119. In actual disasters, the latest information and instructions from on-site rescue agencies take precedence over this list.
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