Southeast Asia is facing one of its deadliest weather crises in recent years as two powerful cyclones, Senyar and Ditwah, struck the region within days of each other, killing more than 1,000 people and forcing tens of thousands to flee their homes across Indonesia, Thailand, Sri Lanka and parts of southern India.
The devastation began with Cyclone Senyar, an extremely rare storm that formed near the equator over the Strait of Malacca. Such formations are uncommon due to weak rotational forces at low latitudes, but unusually warm sea temperatures allowed the system to intensify rapidly. While the cyclone moved away from India, it struck Indonesia and nearby regions with relentless rain.
In Indonesia&rsquo;s Sumatra island, nonstop downpours triggered floods and landslides that wiped out entire settlements. Roads collapsed, communication networks failed, and several villages were completely cut off. Homes were submerged up to their rooftops, forcing aerial rescue missions and naval supply operations. Authorities described the flooding as among the worst in living memory.
Thailand also suffered heavily as storm-driven rainfall inundated southern provinces. Hundreds lost their lives, millions of households were affected, and economic losses ran into billions. Tourism infrastructure, hotels, restaurants, and key agricultural sectors such as rubber and palm oil faced severe damage.
Even as Senyar weakened, Cyclone Ditwah developed over the Bay of Bengal and moved toward Sri Lanka and southern India. The storm made landfall in Sri Lanka, unleashing catastrophic floods and landslides. The death toll rose sharply within days, with hundreds more reported missing, prompting officials to call it one of the most serious natural disasters the country has faced.
In India, Ditwah did not directly strike the coastline but brought intense rainfall to Tamil Nadu, Puducherry and parts of Andhra Pradesh. Flood-related incidents claimed lives and triggered emergency alerts in vulnerable districts.
Forecasters are also tracking another weather system near Vietnam, raising concerns of further rainfall in regions already weakened by repeated storms. While conditions are expected to gradually stabilize, the back-to-back cyclones have highlighted the growing threat of extreme weather in the Indian Ocean region.
The rare intensity and unusual paths of these storms have renewed warnings about climate volatility, as warming oceans continue to fuel stronger and more unpredictable cyclones.

Back-to-Back Cyclones Devastate Southeast Asia

Senyar and Ditwah storms kill over 1,000, displace thousands across Asia

Back-to-Back Cyclones Devastate Southeast Asia

Senyar and Ditwah storms kill over 1,000, displace thousands across Asia

December 1, 2025 | 17:06 IST