The National Building Research Organization (NBRO) has issued Landslide Early Warnings to eight districts across Sri Lanka, effective from 10:00 hrs on September 20, 2026, through 10:00 hrs on September 21, 2026. The affected districts include Colombo, Galle, Kalutara, Kandy, Kegalle, Matara, Nuwara Eliya, and Ratnapura — regions that are historically vulnerable to landslide activity during periods of intense or prolonged rainfall. Residents, local authorities, and travelers in these areas are strongly urged to remain vigilant and follow all official safety guidelines issued by relevant government bodies.
NBRO Issues Level II Amber Warnings Across Key Districts
Among the warnings issued, Level II (Amber) landslide early warnings have been specifically directed to Divisional Secretariat Divisions and their surrounding areas, including Nagoda and several other identified high-risk zones within the listed districts. A Level II Amber warning is a significant alert that indicates a heightened probability of landslides occurring in the designated areas. This level of warning calls for increased caution and preparedness among communities situated in landslide-prone terrain, particularly those living on or near hillsides, slopes, and areas with loose or unstable soil conditions.
The NBRO, which operates under the Ministry of Urban Development and Housing, is the primary government authority responsible for landslide risk assessment and early warning systems in Sri Lanka. The organization continuously monitors rainfall data, soil conditions, and geological factors to determine when and where landslide risks are elevated. When conditions meet the threshold for concern, the NBRO coordinates with Divisional Secretaries and local authorities to ensure that warnings are promptly communicated to at-risk communities.
Why These Districts Are at High Risk
The eight districts named in this warning share several geographical and climatic characteristics that make them particularly susceptible to landslides. Colombo, Kalutara, Galle, and Matara are located in Sri Lanka's wet zone along the southwestern coast, where heavy monsoon rainfall is common. Meanwhile, Kandy, Kegalle, Nuwara Eliya, and Ratnapura are situated in the central highlands and their foothills — regions characterized by steep terrain, significant elevation changes, and soils that can become rapidly saturated during heavy rain events.
Nuwara Eliya and Ratnapura, in particular, are among the most landslide-prone districts in the country due to their mountainous topography and the frequency of intense rainfall they receive during both the southwest and northeast monsoon seasons. Kegalle has also witnessed several devastating landslide events in recent history, making early warning systems in that district critically important for community safety.
What Residents Should Do During an Amber Warning
When a Level II Amber landslide early warning is in effect, residents in affected areas should take the following precautions to protect themselves and their families:
Stay informed: Monitor official updates from the NBRO, the Disaster Management Center (DMC), and local Divisional Secretariat offices. Information can change rapidly depending on rainfall intensity and soil conditions.
Avoid high-risk areas: Stay away from steep slopes, hillsides, riverbanks, and areas that have experienced landslides or ground movement in the past. Do not attempt to cross flooded roads or streams, as floodwaters can carry debris and increase instability in surrounding terrain.
Prepare an emergency plan: Ensure that all household members know what to do in the event of a landslide. Identify the safest evacuation routes and the nearest emergency shelters in your area. Keep important documents, medications, and emergency supplies in an easily accessible location.
Watch for warning signs: Be alert to signs that a landslide may be imminent, including unusual sounds such as cracking trees or boulders, sudden changes in water flow in nearby streams, new cracks appearing in the ground or on walls, and tilting of trees or utility poles.
Contact authorities: If you observe any signs of ground movement or instability, report it immediately to your local Divisional Secretariat, the NBRO, or the National Disaster Management Center hotline.
The Importance of Landslide Early Warning Systems
Sri Lanka's landslide early warning system has played a vital role in reducing casualties and property damage in recent years. By providing advance notice to communities and local authorities, the NBRO enables timely evacuations and emergency responses that can save lives. The system relies on a network of rain gauges, ground sensors, and meteorological data to generate accurate risk assessments in near real-time.
Collaboration between the NBRO, the Department of Meteorology, the Disaster Management Center, and local government bodies is essential to the effectiveness of these warnings. Community awareness and public cooperation are equally critical components — warnings are only effective when residents take them seriously and act accordingly.
Stay Safe and Follow Official Guidance
As the warning period runs from 10:00 hrs on September 20, 2026, to 10:00 hrs on September 21, 2026, all residents in the districts of Colombo, Galle, Kalutara, Kandy, Kegalle, Matara, Nuwara Eliya, and Ratnapura are urged to exercise extreme caution. Prioritize personal safety above all else, heed the advice of local authorities, and do not underestimate the destructive potential of landslides. Staying informed, prepared, and responsive to official guidance remains the most effective way to stay safe during this warning period.