8 Official Information Sources to Check During Heavy Rain, Typhoons, and Heatwaves
Collection Disaster Safety 2026.08.27

8 Official Information Sources to Check During Heavy Rain, Typhoons, and Heatwaves

A public information checklist organized by the type of extreme weather to determine what to check first and how to respond.

When heavy rain, typhoons, or heatwaves are expected, quickly finding official information tailored to the situation is more important than skimming through various search results. For heavy rain, you need to consider weather alerts and radar cumulative precipitation; for typhoons, not only the path but also the radius of strong winds and region-specific risk timings; and for heatwaves, you should check temperature figures along with the level of impact in health and industry sectors to determine when to take action.

This list connects the Korea Meteorological Administration's heavy rain alerts, radar, current typhoon information, risk timings, and heatwave impact forecasts along with the National Disaster Safety Portal and safety maps. It’s organized to help you check 'Where is dangerous right now?', 'When should preparations be completed?', and 'How should you act?' If your family members have different routes, check each area separately.

Heavy Rain Advisory Status

Current Heavy Rain Alerts

Check not only the alerts for your current location but also for areas you plan to travel to. Preliminary notices indicate the possibility of future announcements and can be used as a signal to adjust your schedule before long-distance travel.
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Radar Rainfall Accumulation Images

Radar Cumulative Precipitation

Distinguish whether it's a brief heavy rain or continuous incoming rainfall. For routes sensitive to cumulative precipitation, such as rivers and underground passages, on-site control information takes precedence.
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Typhoon Information

Do not focus only on the centerline of the predicted path; check the forecast range and radius of strong winds together. The path may change with each announcement, so use the latest data.
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Typhoon Risk Timing Information

Use this information to determine when to tidy up windows and outdoor items and when to cease movement. Make sure preparations are completed before the winds and rain intensify and follow local disaster guidance.
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Heatwave Impact Forecast

Beyond just the temperature figures, check the impacts on health and work environments. Seniors, children, and those with chronic illnesses should adjust their schedules more conservatively than usual.
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Korea Meteorological Administration Feels-Like Temperature

Korea Meteorological Administration's Perceived Temperature

Check the maximum temperature along with it when planning outdoor activities during the day. The actual burden may vary depending on whether there's shade or indoor cooling, so plan for breaks and hydration separately.
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National Disaster Safety Portal Guidelines

National Disaster Safety Portal Action Guidelines

Separate your review of preparations and actions during heavy rain, typhoons, and heatwaves. Sharing evacuation locations and contact methods with your family in advance can reduce decision-making time during actual situations.
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Living Safety Map

Safety Map

It serves to frequently review information about rivers, underground spaces, and evacuation plans around your home and workplace. During a disaster, prioritize on-site control by the police, fire department, and local governments along with disaster texts.
판단 의미 지역별 재난·치안·교통 등 생활안전 공간정보 확인 시점 평상시 함께 확인 대피시설 우선 행동 침수 흔적과 대피시설을 다른 지도와 함께 비교하는 것 피해야 할 행동 서로 다른 기준의 지도 색상을 같은 위험등급으로 해석하는
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Alerts serve as official signals to indicate potential dangers; however, the actual evacuation and cessation of movement will vary depending on the terrain and on-site conditions of your residence, workplace, and school route. During heavy rain, avoid underground passages and river access, and before a typhoon, make sure to tidy up outdoor items before strong winds begin. For heatwaves, adjust outdoor work hours and check on vulnerable family members based on the perceived temperature and impact forecasts.

Don't determine safety by just checking the map colors or one cyclone center line; you should read the announcement timing and forecast range together. If flooding or strong winds have already started, do not go outside to check conditions. When there are differences among the latest announcements from the meteorological administration, local disaster texts, police, fire department, and facility managers, prioritize the most specific and immediately applicable on-site guidance based on your location.

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