Thunderstorms and heavy rainfall are forecasted to occur starting from 15 June 2026, 15:30 WITA in parts of Kalimantan Utara especially in: Lumbis Ogong, Malinau Barat, Mentarang Hulu, Peso, Sebuku, Sembakung, Sembakung Atulai, Sungai Tubu, Tulin Onsoi. 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 15 June 2026, 19:00 WITA.