SINGAPORE: Rainy and cold weather has been the talk of the town recently, following a monsoon surge on Friday (Jan 10), which is expected to return this weekend. Such “sweater weather” is projected to continue for the next few months, with more wet days and heavier rainfall predicted for Singapore.
Experts told CNA that the nation is now experiencing northeast monsoon conditions that could worsen during a La Nina event, which could occur as early as this month and persist until April.
The La Nina weather phenomenon, which causes wetter and cooler conditions, involves tropical Pacific sea surface temperatures that typically last for months to a year. According to the Meteorological Service Singapore’s website, the world is now on “La Nina watch.
This happens when the trade winds over the Pacific Ocean strengthen, pushing warm water further west towards Southeast Asia. The water subsequently evaporates, forming clouds that provide heavy rain to the region. This cycle of warming and cooling in the tropical Pacific Ocean is referred to as the El Nino Southern Oscillation (ENSO), a periodic climate trend.
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