Thunderstorms and heavy rainfall are forecasted to occur starting from 24 October 2026, 20:50 WIB in parts of Sumatera Utara especially in: AEK SONGSONGAN, AFULU, AIR JOMAN, AIR PUTIH, ALASA, AMANDRAYA, ANDAM DEWI, ARAMO, BAJENIS, BANDAR HULUAN, BANDAR KHALIFAH, BANDAR MASILAM, BANDAR PASIR MANDOGE, BANDAR PULAU, BARUS, BATAHAN, BATANG NATAL, BERAMPU, DATUK BANDAR, DOLOK BATU NANGGAR, DOLOK MASIHUL, DOLOK MERAWAN, FANAYAMA, GUNUNG SITEMBER, HABINSARAN, JUHAR, KOTA KISARAN BARAT, KOTA KISARAN TIMUR, KOTANOPAN, KUALA, KUALUH HULU, KUALUH SELATAN, LAE PARIRA, LAHEWA, LAHEWA TIMUR, LIMA PULUH, LINGGA BAYU, LOTU, LUAHAGUNDRE MANIAMOLO, MANDREHE BARAT, MANDUAMAS, MANIAMOLO, MEDANG DERAS, NATAL, ONOLALU, PADANG HILIR, PADANG HULU, PAGINDAR, PAKANTAN, PAKKAT, PANTAI CERMIN, PARBULUAN, PARMAKSIAN, PEGAGAN HILIR, PERBAUNGAN, PINTU POHAN MERANTI, PULO BANDRING, RAMBUTAN, RAWANG PANCA ARGA, SEI BAMBAN, SEI DADAP, SEI KEPAYANG BARAT, SEI KEPAYANG TIMUR, SEI SUKA, SEI TUALANG RASO, SEI. RAMPAH, SIDIKALANG, SIEMPAT NEMPU, SIEMPAT NEMPU HILIR, SIEMPAT NEMPU HULU, SILAEN, SILAU LAUT, SILIMA PUNGGA PUNGGA, SIMPANG EMPAT, SINUNUKAN, SIPISPIS, SIRANDORUNG, SIROMBU, SITELU TALI URANG JEHE, SITINJO, SOSOR GADONG, TANAH PINEM, TANJUNG BALAI, TANJUNG BERINGIN, TANJUNG TIRAM, TAPIAN DOLOK, TARABINTANG, TEBING SYAHBANDAR, TEBING TINGGI, TEBING TINGGI KOTA, TELUK DALAM, TELUK MENGKUDU, TELUK NIBUNG, TIGALINGGA, TOMA, TUGALA OYO, ULU PUNGKUT, ULUSUSUA. These conditions may lead to reduced visibility, strong winds, and localized flooding. The public is strongly advised to remain vigilant during this period, limit outdoor activities, and take all necessary precautions to ensure safety. Conditions are expected to gradually improve by 24 October 2026, 23:40 WIB.