Spasi- id. The last few days, the North Sumatra region was hit by extreme weather in heavy rain, high winds, floods, and long hashsor — The impact of tropical cyclone activity and cyclone seeds around Indonesian waters. Between News + 2 Between News + 2
Background: Why can a cyclone occur in the North Sumatera? · Global Voices
- Meteorology, climatology, and Geophysics (BMKG) and the National Catastrology Agency (BNPB) calls that the direct cause of this extreme weather is the Tropical Cyclone Senyar — came from a cyclone seed called Cyclone Bibit 95B in Malacka Straits, plus the influence of Tropical Cyclone KOTO in the Sullu Sea. Between News + 2 Bengculu Between News + 2
- According to the BMKG description, the strait in the Strait of Malacca is "not common," because the tropics near the equator are rarely limited by tropical cyclones. Between News + 1
- However, over the past few years, these phenomena have been happening more and more frequently. — Pressing that change in global weather patterns and climatology could enlarge the possibility of tropical cyclone "strange" near the equator. RCCC University Parang + 1
Impact on Sumut, Damage, and Evacuate
- Extreme rainfall during November 2025 caused a number of areas in Sumut — Especially in the western region and Tapanlaya. — There's flooding and avalanche. Between News + 2 Murianews + 2
- According to BNPB, at least four counties are severely affected: Sibolga, North Tapantuk, Central Tapanlun, and South Tapankankan. Until the latest reports, eight residents were killed, hundreds of injured, and massive infrastructure damage reported. Between News + 2 Murianews + 2
- The daily rainfall is also very high — The BMKG records the intensity of extreme rain at a number of rain stations in Sumut for 2425 November 2025. Banten Between News + 1
- In addition to casualties of life and destruction, many residents must evacuate, and access to transportation and public infrastructure is compromised. The BNPB combined teams and local governments have been deployed for emergency response and evacuation. Between News + 1
Why is it important: great potential risks and lessons to come forward
Phenomena such as Tropical Cyclone Senyar shows that Indonesia — Including areas that have been considered "safe" from tropical cyclones such as North Sumatera — It can affect tropical cyclones if atmospheric conditions support. Between News + 1
- Meaning, necessary disaster readiness. Not just in classic cyclone-prone areas, but also in areas that have been unpredictable.
- The increase in extreme weather intensity also undermines the importance early watch (early warning) and education the public about potential disaster.
- Government and local communities need to strengthen the mitigation system — drainage, warning system, infrastructure alert — In order to deal with this kind of weather anomaly.
Current Emergency Action and Supplement
- BMKG & BNPB forces citizens throughout the Northern Sumatra region — Especially in Tapanlaya, Sibolga, and coastal / mountain areas — for Beware of potential heavy rains, high winds, high waves, floods and landslides in the next few days. Between News + 2 seconds
- To residents in the disaster zone: prepare evacuation route, in case of local authorities' information, and avoid any activity in the avalanche or near the river / cliff during heavy rain.
- For local authorities and related agencies: immediately do Emergency handling, impending victims, aid distribution, and infrastructure repair — Especially drainage and levees.
Conclusion
Tropical cyclone and cyclone storms such as SLIP and KOTO have brought extreme rain, high winds, floods, and landslides to North Sumatra — Proving that changes in weather patterns make the threat of disaster even greater. Citizens and governments must increase caution and readiness, in order for the endless disaster to be greater.
