Cyclone Senyar

Cyclonic Storm Senyar, also referred to as Tropical Depression 34W over the northwest Pacific Ocean, was a weak but exceptionally rare and catastrophic tropical cyclone that brought heavy rains, causing widespread flooding and landslides to the Malay Peninsula and Sumatra in late November 2025. The thirteenth tropical depression and third cyclone of the 2025 North Indian Ocean cyclone season, Senyar developed over the Strait of Malacca from a low-pressure area that formed on 22 November. The disturbance headed westwards and intensified into a depression and then a deep depression on 25 November. It then further intensified into a cyclonic storm before making landfall on northern Sumatra near midnight on 26 November, and then paralleled the Sumatran coast as it weakened and made a second landfall in Peninsular Malaysia. It was the second tropical cyclone documented in the Strait of Malacca after Vamei in 2001, and the first to form at the area since the beginning of reliable records.

Senyar's remnants moved over Malaysia and entered the South China Sea on 28 November, after which the Japan Meteorological Agency began tracking it. The Joint Typhoon Warning Center also resumed advisories, stating that it had moved into the Western Pacific basin and regenerated, intensifying into a tropical depression before dissipating on 30 November.

Senyar caused heavy flooding and landslides across central and southern Thailand (especially Songkhla province), Peninsular Malaysia, and Sumatra, Indonesia, killing at least 1,501 people in the three countries and resulting in US$19.8 billion in damages. At least 1,201 deaths, over 7,000 injuries, and 142 missing persons were reported in Indonesia, all of them in North Sumatra, West Sumatra and Aceh provinces. Thailand also recorded at least 297 fatalities and 102 injuries across 14 provinces, including 229 deaths in Songkhla alone, although local sources claim a much higher figure. Malaysia reported 3 deaths.