Malaysian floods 2021–2022


January 20, 2022

The 2021 Malaysia Flood was a flood event that hit Peninsular Malaysia in December 2021. This flood was caused by heavy rains that continuously hit many areas in Peninsular Malaysia caused by a tropical depression called the 29W tropical depression that hit Peninsular Malaysia from the South China Sea. In addition to the monsoon season and high tides, flooding has started to hit several states, especially in the Klang Valley and East Coast areas. This caused thousands of people to be evacuated.


Climate Change Floods are a prime example of unpredictable weather from high carbon emissions, said Renald Sue, climate change advisor and ecologist at the Center for Government and Policy Research (CentGPS), a behavioral research and social science firm based in Malaysia. "Releasing carbon dioxide into the atmosphere usually has a global leakage effect where greenhouse gases trap heat, and in warmer conditions the atmosphere can hold more steam and water vapor." As reported by Channel News Asia on Wednesday (22 December 2021), Sue explained. “With increasing impact, the long term impact is sudden rain in an area. This is what we witnessed when there was a flood in Malaysia in the last few days,” he added. Also, the northeast monsoon, which occurs in Malaysia from November to March, usually affects the east coast of the peninsula. But this time, flooding also occurred on the central and western coasts of the peninsula. Dr. Meteorology at the University of Malaya. Azizan Abu Samah also explained the causes of flooding in Malaysia. The cause is the interaction between the cyclonic weather system, the northeast monsoon and Hurricane Paradise that hit the Philippines. "These three factors initially caused heavy rains to hit the east coast, and on Saturday they drifted inland and moved to other parts of Peninsular Malaysia," added Dr. Azizan. There has been an increase in the incidence of floods in recent years. An Environmental Lecturer at Putra Malaysia University, Haliza Abdul Rahman, explained about the flooding that occurred in Malaysia. He noted that recently there has been an increase in the incidence of flooding. For example, last August, there was a flash flood at the foot of Mount Jerai in Yan, Kedah which claimed six lives. Haliza also noted that in July and August, excessive rainfall was recorded in other countries, among them Henan province in China, Germany and Turkey causing massive flooding and landslides, costing hundreds of lives and serious damage to property. "Climate change brings about extreme changes in weather patterns, temperatures and rainfall," Haliza said. As of now, climate change is known to cause flooding in Malaysia. This flood occurred 100 years later. Weather Events Once in 100 Years In a press conference last Sunday (19 December), Malaysian Ministry of Environment and Fisheries (KASA) Secretary General Dr Zaini Ujang said on Friday (17 December) that heavy rain that lasted more than 24 hours was one month. it corresponds to the average rainfall in Malaysia. This event is a "once in 100 year weather event". “The annual rainfall in Kuala Lumpur is 2,400 mm, which means yesterday's rainfall exceeded the monthly average. This is beyond our estimate and 100. It only happens once a year,” he said.


Klang Valley

The Klang Valley area is an area affected by this flood, especially the Klang, Shah Alam, and Sepang areas. Due to the above factors, persistent heavy rains hit the Klang Valley from December 17 to December 18, with the state meteorology agency declaring a heavy rain warning period until December 19. By 18 December, around 4,000 people had to be evacuated

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