Thunderstorms and heavy rainfall are forecasted to occur starting from 11 November 2026, 17:20 WIB in parts of Riau especially in: BAGAN SINEMBAH, BANGKINANG, BONAI DARUSSALAM, BUKIT BATU, BUKIT KAPUR, DAYUN, GUNUNG SAHILAN, KABUN, KAMPAR, KAMPAR KIRI HULU, KAMPAR TIMUR, KAMPAR UTARA, KANDIS, KEPENUHAN, KEPENUHAN HULU, KERINCI KANAN, KERITANG, KOTO KAMPAR HULU, KUOK, MANDAU, MARPOYAN DAMAI, MEMPURA, PELALAWAN, PENDALIAN IV KOTO, PERHENTIAN RAJA, PINGGIR, PINGGIR, PUJUD, ROKAN IV KOTO, RUMBIO JAYA, SALO, SIAK HULU, SIMPANG KANAN, SINGINGI HILIR, TAMBANG, TAMPAN, TANAH PUTIH, TAPUNG, TAPUNG HILIR, TAPUNG HULU, TELUK MERANTI, UJUNG BATU, UKUI, XIII KOTO KAMPAR. 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 11 November 2026, 20:00 WIB.