A double whammy of treacherous rain systems is destroying much of Australia causing dangerous showers and a possible descent from the east coast.
Two heavy rain events have begun to devastate large parts of Australia, with the potential to produce a rainy season in just five days.
Sydney will be one of the hardest hit areas in the next few days, as the NSW coastline between the central coast and the Ilwarwarra is expected to shift between 200 and 300 mm of rain.
Meteorologists have warned that the systems, including a treacherous low east coast in Sydney, as well as torrential rains in much of Queensland, are likely to be “intense”.
The weather Sky News Senior meteorologist Tom Saunders said Katherine could record 25mm of rain as the event unfolds. This compares with the usual 1 mm that the city of the Northern Territory receives in July.
“That’s more than 10 times the average rainfall.”
Saunders said a higher level was the cause of the weather drama rising from South Australia.
“This trough will interact with tropical moisture to produce unusual rains (beat) even July records.”
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Intense shock for Queensland
The first system, which crosses northern Australia, is already in full swing.
Darwin caught 8mm of rain on Thursday while Katherine saw more than 10mm.
After cleaning up on Saturday, the system is likely to move to Queensland.
“Falls are expected to intensify on Sunday with heavy falls likely Monday and Tuesday in northern and eastern Queensland,” Saunders said.
Between Friday and Tuesday, Rockhampton is observing between 100 and 175 mm of rain. Mackay could push 200mm.
“Mackay, Rockhampton: They only average about 35mm throughout the month of July. So you’re talking about a rainy season that falls in a week.”
Cairns could see up to 30 mm on Friday, a respite for the weekend, then between 10 and 50 mm more on Monday and Tuesday with highs of 27 ºC.
Brisbane will also be soaked. On Friday they could go down 10-20 mm and on Saturday 15-25 mm. A rain or two on Sunday will bring up to 10 mm plus on Monday and 35 mm possible for Tuesday.
The capital of Queensland should see highs between 17 and 21ºC and lows in low teens.
Lower East Coast dangerous for NSW
Further down the coast and down the east coast is possible on weekends.
These systems have many of the characteristics of cyclones, but are not classified as such, as they are found in subtropical waters. That’s not to say they can’t punch, though.
“The shores of the east coast can produce torrential rains and flooding, sudden flooding and river flooding, damaging winds, power outages and coastal erosion,” Saunders said.
Right now it looks like southern Sydney and the Ilwarwarra could see up to 200mm of rain with 100mm for the north coast. 300mm insulated patches are a possibility.
The Meteorological Office causes rain to rise over Sydney from Friday, when it could fall about 15mm relatively modestly. Then, on Saturday, the forecast is 20-40 mm and on Sunday 45-80 mm.
Heavy falls over Sydney continue early next week. Temperatures in the port city should be around 17ºC with lows of 11-13ºC.
In northern NSW, Kempsey could see 20mm or more of rain every day from Saturday to Tuesday. Ballina is expected to reach 30mm on Saturday.
Canberra could escape the worst weather. But it will not completely escape the rain. A few showers on Friday will be followed by up to 25mm throughout the weekend.
It will also get colder with a maximum of 12 ° C sinking to 1 ° C on Friday morning.
Just looking through another place
The rain will hardly bother Melbourne. You may only see one or two showers on Friday and Saturday and otherwise it will be cloudy with some sun.
Mercury will peak in mid-adolescence with lows of 6ºC over the next few days and weekends.
Thursday it could rain in Hobart, but that’s all for the next few days. Partly cloudy conditions with highs of 11-14 ºC and dawn lows of 3 ºC are expected during the weekend.
A dry weekend of mid-teen temperatures in Adelaide and nights dropping around 7ºC. Sunday could see some sun.
Happy blue winter skies are ready for Perth during and over the weekend with pleasant highs of 20 ºC but colder mornings of 7 ºC. The rain will return around Tuesday.
Read related topics: BrisbaneSydney