Latest news with #JonathonHow


Daily Mail
2 days ago
- Climate
- Daily Mail
Sydney, Melbourne weather: How cold it will get as high-pressure system strikes
A powerful high-pressure system parked over southeastern Australia has triggered a week of icy temperatures, just ahead of the year's shortest and darkest day of the year. Clear skies have spread across New South Wales and Victoria, with the system expected to keep clouds away into the weekend. While the days are sunny and mild, the nights have turned bitterly cold, leading to widespread frost and sub-zero temperatures. The Bureau of Meteorology's Jonathon How explained the system can cause cool mornings. 'We've got high pressure sitting on top of us which basically means sinking air, sinking air generally clears skies, number one,' he told Daily Mail Australia. 'Number two, it brings dry air down to the surface and that can mean cold nights.' Dry air, which contains less water vapor, traps less heat, allowing temperatures to plunge overnight. On Thursday morning, regions along the Great Dividing Range - from Victoria to Queensland - recorded temperatures below -4C. Marrangaroo, west of Lithgow in NSW, saw the coldest reading at a bone-chilling -7.7C. Frosts are forecast to continue across NSW, Victoria, Tasmania's highlands, eastern South Australia, and parts of Queensland and the Northern Territory, including Roma and Alice Springs. The cold snap is expected to ease slightly over the weekend as the high-pressure system begins to move offshore. 'Overnight temperatures will gradually start to climb again and it won't be as icy,' Mr How said. Sydney's overnight lows could rise from 6C to 13C by late next week, thanks to a front bringing warmer northerly winds. The timing coincides with the winter solstice on Saturday, marking the darkest and shortest day of the year. 'You've got long nights and the longer the darkness the more that heat can leave the Earth's surface,' he said. 'And you've got less daytime to warm it up again. So we've really been approaching the coldest time of the year.' Hobart will see the least daylight of all capital cities - just nine hours and one minute. Sydney will get 9 hours and 54 minutes, while Darwin, being furthest north, will enjoy 11 hours and 24 minutes. Meanwhile, in the west, Perth braces for wet and windy weather as another cold front rolls in from the ocean, bringing rain, thunderstorms, and gusty winds. Canberra Friday: Morning frost. Mostly sunny. Min -5C. Max 13C. Saturday: Morning frost. Sunny. Min -4C. Max 15C. Sunday: Morning frost. Mostly sunny. Min -4C. Max 14C. Sydney Friday: Mostly sunny. Min 6C. Max 17C. Saturday: Sunny. Min 7C. Max 18C. Sunday: Sunny. Min 8C. Max 19C. Brisbane Friday: Partly cloudy. Min 13C. Max 23C. Saturday: Partly cloudy. Min 14C. Max 23C. Sunday: Partly cloudy. Min 15C. Max 24C. Melbourne Friday: Sunny. Min 6C. Max 16C. Saturday: Sunny. Min 5C. Max 16C. Sunday: Sunny. Min 6C. Max 16C. Hobart Friday: Partly cloudy. Min 8C. Max 17C. Saturday: Mostly sunny. Min 7C. Max 17C. Sunday: Mostly sunny. Min 7C. Max 15C. Adelaide Friday: Sunny. Min 9C. Max 19C. Saturday: Sunny. Min 9C. Max 19C. Sunday: Shower or two. Min 10C. Max 22C. Darwin Friday: Sunny. Min 20C. Max 31C. Saturday: Mostly sunny. Min 21C. Max 31C. Sunday: Mostly sunny. Min 20C. Max 30C. Perth Friday: Rain increasing. Min 13C. Max 21C. Saturday: Showers. Min 8C. Max 17C. Sunday: Showers. Min 9C. Max 19C.


Daily Mail
12-06-2025
- Climate
- Daily Mail
Coldest night in more than 40 years: Aussies shiver through temperatures as low as -4C
Millions of Australians shivered through freezing temperatures overnight with some parts of the country recording their coldest night in decades. Mt Isa, in north-west Queensland, recorded its coldest June night in 44 years after temperatures plunged to -0.7C. Further east, in Richmond, a minimum temperature of -0.1C was the first sub-zero night in 13 years. Oakey on the Darling Downs reached a low of -4.2C. 'What we're seeing is a very stubborn high pressure system sitting over the east coast,' the Bureau of Meteorology's Jonathon How told Daily Mail Australia. 'It's made up of light wind, clear skies and cool air; the clear sky does mean that temperature can drop overnight. 'We are expecting another frosty night across Queensland tonight.' In NSW, the cold snap blanketed the Central Tablelands in snow and temperatures sank below freezing. Sydneysiders have been warned to expect scattered showers and tops of 16C. A southerly airstream has continued dragging cold air up the east coast, likely to bring wetter weather into the weekend. Showers are expected to develop from Thursday night along the exposed eastern NSW as a trough sits offshore. A low pressure system in the Tasman Sea and a high over the Great Australian Bight combined to push the south-westerly air over Queensland and New South Wales. 'Showers along the coastal fringe, couple thunderstorms though most of it is sort of offshore,' he said. The eastern suburbs could see possible showers today, before light showers become more widespread on Friday. Melbourne will remain drier heading into the end of the week after multiple rounds of showers fell across Victoria, South Australia and Tasmania. Many of the areas to receive the dampening had endured a record dry start to the year, with farmers saying more rain was needed to break the drought. 'Southern and south-eastern Australia will need to see more healthy rain-bearing systems this winter to further reduce or wipe out the longer-term rainfall deficiencies,' Weatherzone wrote at the time. Gusty showers and potential storms developing across southern Western Australia on Friday as a cold front clips the bottom of the state. The front is tipped to reach Adelaide on Saturday, bringing showers to some of the driest regions of the state. The Mid North of the state looks likely to miss out on the much-needed rain, but the upper Eyre Peninsula –which has seen the least rainfall all year– should receive some of the showers. 'That cold front will track across South Australia and reach Adelaide on Saturday, in terms of rainfall, any is welcome,' Mr How said. The bureau is expecting about 10mm of rain in the SA capital on Saturday before the system moves over Victoria and weakens on Sunday. 'There is another coming on Monday from the same direction,' Mr How said. Sydney Friday: Shower or two. Min 10C. Max 16C. Saturday: Shower or two. Min 11C. Max 17C. Sunday: Partly cloudy. Min 9C. Max 18C. Perth Friday: Showers. Min 11C. Max 21C Saturday: Partly cloudy. Min 6C. Max 20C Sunday: Shower or two. Min 10C. Max 20C Adelaide Friday: Mostly sunny. Min 7C. Max 18C. Saturday: Showers. Min 8C. Max 16C. Sunday: Shower or two. Min 8C. Max 16C. Melbourne Friday: Mostly sunny. Min 3C. Max 14C. Saturday: Partly cloudy. Min 3C. Max 13C. Sunday: Possible shower. Min 7C. Max 15C. Hobart Friday: Mostly sunny. Min 3C. Max 14C. Saturday: Mostly sunny. Min 4C. Max 15C. Sunday: Partly cloudy. Min 4C. Max 15C. Canberra Friday: Morning frost. Partly cloudy. Min -1C. Max 13C. Saturday: Morning frost. Partly cloudy. Min -1C. Max 14C. Sunday: Morning frost. Partly cloudy. Min 1C. Max 13C. Brisbane Friday: Sunny. Min 8C. Max 19C. Saturday: Sunny. Min 8C. Max 21C. Sunday: Sunny. Min 10C. Max 23C. Darwin Friday: Sunny. Min 19C. Max 30C. Saturday: Sunny. Min 19C. Max 30C.


West Australian
25-05-2025
- Climate
- West Australian
Severe weather warning in place for millions as floodwaters recede in NSW
Millions of Australians are now bracing for potentially wild weather as the recovery effort begins in NSW, with floodwaters still receding in the wake of devastating rains. Severe weather warnings were in place for swathes of southeast Australia on Sunday night, including Adelaide and southern parts of Victoria. The 'significant weather event' could bring widespread damaging to destructive winds and hazardous coastal conditions from Sunday. The Bureau of Meteorology's Jonathon How said conditions would likely peak on Monday, as the most powerful cold front of the year swept through. 'A severe weather warning is current from damaging or destructive winds across three states, and parts of the ACT,' including NSW, Mr How said. Across the warning area – from western South Australia to the Snowy Mountains in NSW and the ACT – winds gusts of up to 120km/h were forecast. Damaging winds are expected to ease into Tuesday across the warning area, but could instead then spread into parts of eastern NSW. 'With these winds coming through, we are expecting significant impacts,' Mr How said. 'Trees are weak across southeastern Australian due to how dry it's been over the past autumn. 'So we could see high numbers of fallen trees and branches causing damage to property.' Mr How said the winds could also lead to damaging driving conditions and disruptions to utilities, including power infrastructure. Snow falling late Monday and into Tuesday could also result in blizzard-like conditions across the Australian Alps. While the weather front bears down on the country's southeast, the Bureau also warned of unseasonal widespread rain and winds in the northeast. Flood watch warnings were in place in parts of the country's north, including the West Kimberley and Fitzroy Rivers, on Sunday night. An initial flood watch was also in place for the Sturt Creek District, Tanami, Central, and Western Desert catchments in the Northern Territory. The northeast of the country is expected to see below average temperatures and heavy rains in the coming days and into next week. A final flood warnings were still in place at Eyre Creek in Queensland and a marine weather warning was in effect in Tasmania.


Perth Now
25-05-2025
- Climate
- Perth Now
Millions bracing for more extreme weather
Millions of Australians are now bracing for potentially wild weather as the recovery effort begins in NSW, with floodwaters still receding in the wake of devastating rains. Severe weather warnings were in place for swathes of southeast Australia on Sunday night, including Adelaide and southern parts of Victoria. The 'significant weather event' could bring widespread damaging to destructive winds and hazardous coastal conditions from Sunday. The Bureau of Meteorology's Jonathon How said conditions would likely peak on Monday, as the most powerful cold front of the year swept through. 'A severe weather warning is current from damaging or destructive winds across three states, and parts of the ACT,' including NSW, Mr How said. Across the warning area – from western South Australia to the Snowy Mountains in NSW and the ACT – winds gusts of up to 120km/h were forecast. Weather warnings across multiple states and territories on Sunday. BOM Credit: NewsWire Damaging winds are expected to ease into Tuesday across the warning area, but could instead then spread into parts of eastern NSW. 'With these winds coming through, we are expecting significant impacts,' Mr How said. 'Trees are weak across southeastern Australian due to how dry it's been over the past autumn. 'So we could see high numbers of fallen trees and branches causing damage to property.' Mr How said the winds could also lead to damaging driving conditions and disruptions to utilities, including power infrastructure. Snow falling late Monday and into Tuesday could also result in blizzard-like conditions across the Australian Alps. While the weather front bears down on the country's southeast, the Bureau also warned of unseasonal widespread rain and winds in the northeast. Flood watch warnings were in place in parts of the country's north, including the West Kimberley and Fitzroy Rivers, on Sunday night. An initial flood watch was also in place for the Sturt Creek District, Tanami, Central, and Western Desert catchments in the Northern Territory. The northeast of the country is expected to see below average temperatures and heavy rains in the coming days and into next week. A final flood warnings were still in place at Eyre Creek in Queensland and a marine weather warning was in effect in Tasmania.
Yahoo
25-05-2025
- Climate
- Yahoo
Millions bracing for more extreme weather
Millions of Australians are now bracing for potentially wild weather as the recovery effort begins in NSW, with floodwaters still receding in the wake of devastating rains. Severe weather warnings were in place for swathes of southeast Australia on Sunday night, including Adelaide and southern parts of Victoria. The 'significant weather event' could bring widespread damaging to destructive winds and hazardous coastal conditions from Sunday. The Bureau of Meteorology's Jonathon How said conditions would likely peak on Monday, as the most powerful cold front of the year swept through. 'A severe weather warning is current from damaging or destructive winds across three states, and parts of the ACT,' including NSW, Mr How said. Across the warning area – from western South Australia to the Snowy Mountains in NSW and the ACT – winds gusts of up to 120km/h were forecast. Damaging winds are expected to ease into Tuesday across the warning area, but could instead then spread into parts of eastern NSW. 'With these winds coming through, we are expecting significant impacts,' Mr How said. 'Trees are weak across southeastern Australian due to how dry it's been over the past autumn. 'So we could see high numbers of fallen trees and branches causing damage to property.' Mr How said the winds could also lead to damaging driving conditions and disruptions to utilities, including power infrastructure. Snow falling late Monday and into Tuesday could also result in blizzard-like conditions across the Australian Alps. While the weather front bears down on the country's southeast, the Bureau also warned of unseasonal widespread rain and winds in the northeast. Flood watch warnings were in place in parts of the country's north, including the West Kimberley and Fitzroy Rivers, on Sunday night. An initial flood watch was also in place for the Sturt Creek District, Tanami, Central, and Western Desert catchments in the Northern Territory. The northeast of the country is expected to see below average temperatures and heavy rains in the coming days and into next week. A final flood warnings were still in place at Eyre Creek in Queensland and a marine weather warning was in effect in Tasmania.