Flash floods in Hougang Avenue 8, Punggol Way after heavy morning rain

The water level in the canal along Punggol Park in Hougang on Aug 30, 2021.
The water level in the canal along Punggol Park in Hougang on Aug 30, 2021.PHOTO: LIANHE ZAOBAO
A woman crosses Hougang Avenue 8 on the morning of Aug 30, 2021.
A woman crosses Hougang Avenue 8 on the morning of Aug 30, 2021.ST PHOTO: ONG WEE JIN
Flooding in Hougang Avenue 8 on Aug 30, 2021.
Flooding in Hougang Avenue 8 on Aug 30, 2021.ST PHOTO: ONG WEE JIN
Flooding in Hougang Avenue 8 on Aug 30, 2021.
Flooding in Hougang Avenue 8 on Aug 30, 2021.ST PHOTO: ONG WEE JIN
Toa Payoh (above) photographed on the morning of Aug 30, 2021.
Toa Payoh (above) photographed on the morning of Aug 30, 2021. PHOTO: LIANHE ZAOBAO

SINGAPORE - Flooding occurred in Hougang Avenue 8 and the Punggol Way slip road to the Tampines Expressway (TPE) on Monday morning (Aug 30), while several areas around Singapore are at risk of flash floods, the PUB warned.

The national water agency said in a social media post that PUB officers have been deployed to the two flooded areas to render assistance. 

Flooding at the two sites subsided, the agency informed in an update later in the day.

Separately, PUB said water levels in a number of drains and canals were at or near full capacity following heavy morning showers.

These included those along Balestier Road, Thomson Road, Upper Paya Lebar Road, Puay Hee Avenue, Sime Darby Centre and Siang Kuang Avenue as at around 10am.

Flood risks were also identified in the central area of Singapore, in Toa Payoh, Bishan and Novena, based on PUB’s interactive map of water-level sensors around the island. 

Other places that were at risk of flooding included Sengkang, Yio Chu Kang and Choa Chu Kang.

Shortly before 11am, PUB said water levels had subsided in many of the places it had flagged.

The Meteorological Service Singapore (MSS), a unit under the National Environment Agency, said on Aug 28 that the public should brace themselves for heavier rains over the next two months, due to the Indian Ocean Dipole entering a negative phase.

This weather phase is expected to persist till October, MSS said.

In the negative phase, winds blowing towards the eastern end of the Indian Ocean are intensified.

This sets up a temperature gradient across the tropical Indian Ocean, with cooler-than-normal water in the west, and warmer-than-normal water in the east.

The warmer pool fuels the formation of rain clouds and results in heavier-than-usual rainfall over Singapore. 

According to the MSS website, the lowest temperature recorded on Monday was 21.8 deg C at Pasir Panjang at 6.17am.

Temperatures also dipped below 23 deg C on Monday morning in Clementi, Newton and Pulau Ubin, and dropped below 24 deg C in other parts of Singapore, such as Jurong Island, Marina Barrage, Changi, East Coast Parkway, Admiralty and Choa Chu Kang South. 

Thundery showers are expected to continue for the rest of the week.