08. December 2021

Wet, gloomy forecast for Sydney as summer flood risk looms large


Sydneysiders will not see a lot solar this week, with the climate bureau forecasting cloudy circumstances and rain for the following seven days.

Parts of the town obtained as much as 15 millimetres of regular rain on Sunday.

A tourist passes the Sydney Opera House on Sunday.

A vacationer passes the Sydney Opera House on Sunday.Credit:Jacky Ghossein

Bureau of Meteorology climatologist Agata Imielska mentioned there’s “no sunshine on the forecast in the week ahead for Sydney”.

“[Sunday] was the main big rain day,” she mentioned. “We’re not expecting this to continue [on Monday but] having said that we don’t have that wonderful sunny day we’re all hoping for on the forecast.”

Monday is predicted to be 23 levels with as much as 10 millimetres of rain. Thursday seems set to be the wettest day with as much as 20 millimetres, however it would even be a heat and sticky 27 levels.

Thunderstorms are doable on Wednesday and Thursday.

“We’d love to see some sunshine but, in some ways, there’s some good news that the rain isn’t that really heavy, flood-producing rainfall,” Ms Imielska mentioned.

Sunday’s inclement climate resulted in some Sydney ferry companies being cancelled. Buses changed the brand new, smaller Emerald-class ferry companies, however the bigger Freshwater-class ferry companies had been capable of proceed crusing.

Despite main flooding within the NSW Central West city of Forbes final week, this week’s rainfall is “not expected to aggravate that flooding”.

“The flood peak has moved past Forbes,” she mentioned. “It does take quite a bit of time for the water to move through the river system.”

About 1800 residents from 800 households had been ordered to evacuate on Tuesday when the Lachlan River approached main flood ranges, though the risk eased by Wednesday night.

Sydney’s extended damp spell is leaving climate gurus anxious about heightened flood dangers forward of summer as dams are already full.

Sydney’s Warragamba Dam is 99.2 per cent full ahead of a wet summer.

Sydney’s Warragamba Dam is 99.2 per cent full forward of a moist summer.Credit:Brook Mitchell

The metropolis’s principal water catchment, Warragamba Dam, is 99.2 per cent full heading into what’s predicted to be a wetter than common summer.


This time final 12 months, Warragamba Dam was 96.4 per cent full. A couple of months later, the dam overflowed through the main flooding in March within the Hawkesbury-Nepean area in western and north-western Sydney.

“What this rain is doing is keeping catchments wet across much of the state, Sydney included. Water storages are full, it’s speaking to that increased flood risk this severe weather season,” Ms Imielska mentioned.

“With saturated soils and storages being full, there’s no capacity for rivers and the broader environment to soak up that rainfall. It just means we don’t need as much rain for flooding to occur.”

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