Explainer: Cold spells, heatwave, rain — what's behind Singapore's erratic weather and how to brace for 'extreme' changes ahead

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Explainer: Cold spells, heatwave, rain — what's behind Singapore's erratic weather and how to brace for 'extreme' changes ahead
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WATCH: ☀️Just a few days ago, the temperature in Singapore soared to 37°C. Then there was heavy rain on Tuesday (May 16) morning. ☔️What's causing Singapore 's erratic weather? 🌦️ wesanderson sgweather

TODAY takes a closer look at the causes of erratic weather changes, what is to be expected and what Singaporeans can do.A heatwave is caused by a system of high atmospheric pressure that moves into an area, Professor Benjamin Horton said.

Dr Wang Jingyu, an assistant professor of physical geography at the National Institute of Education , noted that “it was the hottest April in Asia”. Prof Horton said that “2016 was an El Nino year, and mainland Southeast Asia encountered its warmest monthly mean surface air temperatures in April 2016, surpassing national temperature records in mainland Southeast Asia”.

, which brought a lot of rain, Dr Sri said, adding that there were also other “climate variability phenomena” that contributed to the shifts.. We need to monitor the El Nino forecast and outlook in the coming months to see if this is really the case.”Singapore has two main monsoon seasons, the northeast monsoon season from December to March and the southwest monsoon season from June to September.

“In a normal climate, the probability for extreme events can be visualised like a traditional bell curve. Moderate weather events are much more common than extreme events.IS THE SUDDEN HEAVY RAIN CAUSED BY CLIMATE CHANGE?"It is too early and too short an event to attribute to climate change, though in general, scientists agree that such warming trends could be both due to global warming and urbanisation.

He also said that people should brace themselves for the return of El Nino weather patterns and events because it will “result in unprecedented heatwaves, making this year even hotter than 2022”.Dr Elaine Chua, a general practitioner at Bedok Medical Centre, emphasised the importance of having “easy access to fluids to remain hydrated, and to avoid diuretics like coffee, tea and alcohol”.

“When working in hot conditions, it's helpful to eat light meals frequently to ensure you maintain your energy levels while refraining from causing discomfort or stomach aches,” he added.Singapore’s recent heatwave has hit outdoor workers hard, but doctors interviewed by TODAY have not seen a significant rise in cases of heat-induced sickness or injury.

A part-time GrabFood delivery rider who gave her name as just Gloryz, 19, told TODAY how the heatwave has caused her to work slower on Saturdays, leading to a loss in income.

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TODAYonline /  🏆 1. in SG

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