Sydney is once again under storm threat as the remnants of a 1500km storm band continue to plague NSW and Victoria.
Severe storm warnings littered the coast on Wednesday from Queensland to the NSW border with Victoria, and despite the storm fronts moving south, there’s a possibility it could return to more populated areas.
The Bureau of Meteorology (BOM) has warned of possible thunderstorm’s in NSW’s southeast and central east on Thursday afternoon and evening.
This warning included Sydney and Canberra.
“Some thunderstorms in the southeast may become severe, with a risk of localised heavy falls leading to flash flooding,” the BOM warned residents.
Clouds are beginning to gather and turn grey across metropolitan Sydney, threatening to bring more showers to the city.
The BOM predicts that there will be a 60 per cent chance of showers across Sydney and radar photos show clouds in the west.
Heavy rainfall and damaging winds are expected in parts of eastern parts of Victoria including Gippsland and the north east according to the Bureau of Meteorology (BOM).
The rain threat in eastern Victoria means the likelihood of flash flooding will increase through Thursday morning as south-easterly driving winds ramp up before slowly easing late in the afternoon and into the night.
Up to 80mm of rain is predicted to fall over the area in just six hours with isolated falls likely to creep up to 100mm.
Areas of particular flooding concern include Dargo, Mallacoota, Chandlers Creek, Combienbar, Gelantipy and Mt Baw Baw.
“A broad low pressure system near the southeast coast of New South Wales will slowly move offshore tonight, developing in response to a strong upper level low,” the BOM warns.
“A strong easterly flow south of the low over eastern Victoria drawing in rich moisture from the Tasman Sea will gradually tend more south-easterly over Gippsland during Thursday.”
Average winds of 40 to 60km/h will also impact the area with gusts of around 90km/h possible in Gippsland on Thursday evening.
The rain threat may have retreated south, but parts of NSW along the border with Victoria will continue to be impacted.
Heavy rainfall and damaging winds could lead to flash flooding on the South Coast and Snowy Mountains on Thursday, with particular concern for Eden, Bega, Narooma and Merimbula.
“The far south of the South Coast may see continued heavy rain well into Thursday, though there is uncertainty on this due to the movement and positioning of the low and trough,” the BOM warned.
Six-hour rainfall totals of up to 100mm are likely in the affected areas with isolated falls of up to 150mm.
The huge storm band continues to draw from a “warm blob” of moisture from the Tasman Sea.
The “warm blob” of water that’s six degrees higher than usual has moved down the NSW coast over the past month according to WeatherZone meteorologist Ben Domensino.
Sydney will get a break from the rain on Friday with only 1mm likely to fall, while up to 3mm is expected from showers in Melbourne.
Both cities will continue to see rain over the next few days as the tail of the large stormfront continues to roll through, with Melbourne to get 5mm on both Friday and Saturday and Sydney to receive 10mm on the weekend.
Queenslanders copped a lot of rain over the past week, with showers to still continue to fall over the weekend, and now there’s another threat.
A heatwave has been predicted for the state with particular concern for those on the Central Coast, Whitsundays and Capricornia.
The heat warning has been cancelled for areas in the southeast but Brisbane and Gold Coast residents are still set to sweat.
Thursday will reach a maximum of 33C degrees in Brisbane before the heat ramps up to a high of 35C degrees on Sunday.