© Lianhe ZaobaoPUB said there was a flash flood in Wan Tho Avenue in Potong Pasir
Record rainfall fell in the northern part of Singapore, with two flash floods in Yishun and Potong Pasir that eased within 10 minutes, said national water agency PUB.
In a Facebook post, PUB said 127.7mm of rain was recorded between 2.15pm and 4.50pm in northern Singapore, which is more than half the average monthly rainfall in November.
PUB said: "This amount corresponds to 51 per cent of Singapore's average monthly rainfall in November, and lies within the top 1 per cent of maximum daily rainfall records since 1978."
Earlier in the day, the National Environment Agency issued an alert that said heavy rain was expected over many parts of the island in the afternoon.
From 2.50pm, PUB sent out flood risk alerts for 19 locations, mostly in the eastern and central parts of the island, including Paya Lebar, Serangoon, Aljunied and MacPherson, and asked people to avoid these areas.
At 3.10pm, PUB said there was a flash flood in Wan Tho Avenue in Potong Pasir, followed by an update 10 minutes later, saying waters had subsided.
The other flash flood in Yishun Avenue 7 at 3.30pm also eased 10 minutes later.
PUB said its Quick Response Team was deployed to both locations to help motorists.
"Sudden and intense storms can temporarily overwhelm our canals and drains and cause localised flash floods, which typically subside within an hour," it added.
The Meteorological Service, in a 6pm update on its website, said the lowest temperature for the day was 23.2 deg C, recorded at 4.14pm in Ang Mo Kio.
In a fortnightly forecast on Nov 15, the Met Service said frequent moderate to heavy thundery showers are expected for the second half of November as the north-east monsoon sets in.
Rainfall, often starting in the afternoon and sometimes lasting into the night, is likely to be above average, and temperatures can drop to as low as 23 deg C on some of the rainy days.
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