Date: 2021-09-03 09:15:18
Australia’s warm start to spring is set to evaporate before the weekend as a very severe weather warning is issued for the east coast.
Australia’s warm start to spring Friday is set to evaporate as a strong cold front in the country’s southeast.
Heavy rains, thunderstorms and possible hail will wreak havoc on the east coast, along with severe weather warnings for harmful winds and flooding.
Meteorologist Jackson Brown said heavy rains and possible flash floods would develop in the country’s southeastern states on Friday.
He said a significant cold front that tapped into a band of tropical moisture moved overnight in eastern Victoria, Tasmania and western NSW.
A severe weather warning has been issued for Victoria’s alpine areas, including the Dandenong and Yara Mountains, Mount Buller, Mount Bau Bau, Mount Hotham and Falls Creek.
Flood warnings have also been issued for the northeastern, central and Gippsland regions of Victoria, with 22 rivers and catchments in the catchment likely to be slightly different from Saturday morning.
It started raining early in the morning in Melbourne on Friday afternoon, with gray skies signaling the end of the beautiful sunny spring season earlier this week.
Matthew Thomas, a senior forecaster at the Bureau of Meteorology, said temperatures would drop sharply over the weekend, with rain likely to continue and thunderstorms expected.
“Once that push through the change we will see temperatures drop significantly over the weekend, and temperatures in mid-teens are more likely through the weekend,” he said.
“It will be raining in Melbourne on Friday and there is a possibility of heavy rain for some time in the afternoon with heavy rain till noon.
“We’re usually looking around 20-30mm, but we can see some isolated high totals, especially if there’s lightning.”
The rains and dry weather are likely to continue to blanket the state till the middle of next week and the sky is likely to be warm till Wednesday.
Mr Thomas said it would still rain but would be comfortable for isolated rain throughout Monday and Tuesday.
In NSW, a severe weather warning has been issued for harmful winds in some parts of the Snow Mountains, while a moderate to moderate flood warning has been issued for the Lachlan River.
“In Victoria and the NSW, winds of 110km / h with 120km / h are possible in hazardous alpine areas, with gusts of 0km / h expected in the northern suburbs of Melbourne and Dandenongs,” Mr Brown said.
“Preliminary progress continues on the NSW ahead Saturday and Sunday, and a low pressure system could be formed over the weekend east of Bass Strait – this will increase rainfall in the Gippsland area.”
Mr Brown said 10mm to 25mm of rain was expected in the southeast by Sunday, with 50mm to 100mm expected in the alpine areas of both Gipssland and NSW and Victoria.
He said melting snow from “relatively hot rains” would cause secondary flooding and prolonged flooding.
Senior meteorologist Tom Delmotte said the storm would gradually narrow across Victoria by Friday.
He said the “unseasonal” hot start to spring, where Thursday reached 32.5 degrees in Mildura in the northwest of the state and was not “hot soon after the winter” on record, would pave the way for colder temperatures ahead. Has arrived
“The combination of a southwest wind change and a band of rain is going to cause the temperature to drop very significantly,” he said.
Mr Delamote said maximum temperatures would reach 13 degrees Celsius in southwest Victoria on Friday, while Melbourne would drop from 23 degrees Celsius to 1pm to 5pm.
He said cooler temperatures are hovering around on weekends, with maximum temperatures in Victoria ranging from low to mid-teens.
“We can see some winter hail around the western parts of Victoria, so it’s really a cold wind coming from behind this rain band and is definitely going to return to winter conditions over the weekend,” Mr Delamote said.
Originally published Heavy rains, hurricanes and flash floods hit Victoria, NSW, ACT and Tasmania