Friday 30th of August 9.34a.m. Cold and sunny. 14.8 / 18.5kph NE, Hg 41%, 19C / 66.2F top pf 27C / 82F. Sunny. Marine wind warning + severe weather warning for more damaging winds.
Moon is 15.6%
Bureau issues multiple warnings as fierce winds over southern Australia brings potential record heat to Sydney and Brisbane
15 hours ago
By ABC meteorologist Tom Saunders
A ferocious jetstream is blowing up to 350kph from west to east. (ABC News)
Multiple wind warnings have been re-issued for south-east Australia as another powerful cold front approaches from the Southern Ocean.
The quick turnaround between systems is due to a tight gradient between record heat over the mainland and polar air near Tasmania – a pattern leading to a ferocious jetstream up to 350 kilometres per hour.
Additional bursts of damaging winds will then follow from Saturday to Monday as the battle between the two opposing air masses continues.
The powerful westerlies bring the ongoing risk of downed trees and power outages into the weekend, while simultaneously to lifting maximums as much as 12 above average on the east coast – warm enough to threaten winter records from Sydney to Brisbane.
Cyclone force winds to return overnight
After a brief spell of calmer weather early on Thursday, winds are now re-strengthening across south-east Australia — triggering warnings for four states as gusts rise from 90kph to 125kph along the coast and ranges.
This second round of damaging winds, like the first, will arrive near the passage of a cold front, set to sweep through SA, Tasmania and Victoria overnight then reach eastern NSW on Friday morning.
While winds during the next 24 hours are forecast to reach speeds just below Wednesday's heights, peak gusts will still comfortably exceed the threshold for downed trees and powerlines, along with possible minor property damage.
As the front moves into the Tasman Sea later on Friday winds will again ease, however yet another front will bring a renewed burst of windy weather and warnings through Saturday, followed by a fourth front for the week and further potential gales on Sunday and Monday.
