Environment

Heavy rain on 22 Nov causes flash floods in Yishun & Potong Pasir, 127.7mm recorded in northern S’pore

Flash floods in Yishun Ave 7 & Wan Tho Ave subsided within 10 minutes, says PUB

On Friday (22 Nov), another heavy downpour in Singapore caused flood risk warnings to be issued across the island.

Two of the locations affected were Yishun and Potong Pasir, where flash floods occurred.

Source: PUB, Singapore’s National Water Agency on Facebook

Flash floods in Yishun & Potong Pasir subsided within 10 minutes

In a Facebook post on Friday afternoon, national water agency PUB said the flash flood along Wan Tho Avenue, which is near Potong Pasir MRT station, developed at around 3.10 pm.

Over at Yishun Avenue 7, another flash flood started at 3.30pm.

Both incidents subsided within 10 minutes, PUB said.

Nevertheless, PUB’s Quick Response Team provided immediate assistance to motorists at both locations.

PUB issued 19 flood risk warnings on 22 Nov

On Friday, PUB issued flood risk warnings for 19 locations across the island due to the heavy rainfall.

According to the PUB Flood Alerts Telegram channel, members of the public were advised to avoid Wan Tho Avenue near the junction of Pheng Geck Ave, and Yishun Avenue 7.

Other areas it warned against included Lorong Gambir (which is off Bartley Road), Mount Vernon Road, Choa Chu Kang Avenue 1, Bedok Avenue 4, and Jalan Nipah (which is off Bedok Road).

This is the third day in the past week that PUB issued flood risk warnings across Singapore due to heavy rain.

 

Ponding experienced at other places

Other places in Singapore also experienced high water levels despite no flash flood warnings being issued.

For example, a TikTok video showed cars driving through deep waters along Lentor Avenue.

Source: @addalee.sg on TikTok

In another TikTok video, a walkway next to a coffee shop in Tampines was seen inundated with water. A netizen identified it as Block 823 Tampines Street 81.

Source: @neoleechin on TikTok

Another walkway at the foot of an HDB block in an unidentified estate experienced even worse ponding, according to a third TikTok video.

Source: @mr.electronice_device on TikTok

A man was seen walking in ankle-deep water.

Source: @mr.electronice_device on TikTok

127.7mm of rain fell in northern S’pore over less than 3 hours

According to PUB, the heaviest rainfall recorded on Friday was 127.7mm in northern Singapore over less than three hours — from 2.15pm to 4.50pm.

“This amount corresponds to 51% of Singapore’s average monthly rainfall in November,” PUB said.

It also lies within the top 1% of maximum daily rainfall records since 1978.

Moderate to heavy showers expected in afternoons on most days

PUB also warned of moderate to heavy showers across Singapore in the afternoons on most days.

This is due to the onset of the Northeast Monsoon.

Last Friday, the Meteorological Service Singapore (MSS) made a similar forecast for the second half of November.

Localised flash floods typically subside within an hour: PUB

These “sudden and intense storms” may “temporarily overwhelm our canals and drains”, PUB added.

These may result in localised flash floods that typically subside within an hour.

PUB encouraged members of the public to use the MyENV app and subscribe to the PUB Flood Alerts Telegram channel to get alerts on heavy rain and flood risk warnings.

Also read: Bugis experiences ponding after heavy rain on 17 Nov, netizens say it’s like waterpark

Have news you must share? Get in touch with us via email at news@mustsharenews.com.

Featured image adapted from PUB, Singapore’s National Water Agency on Facebook.

Jeremy Lee

Analog person making do with a digital world.

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