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Troughs in southeastern QLD & NSW are generating showers and rain. Lows & troughs are causing blustery winds, showers in NSW, VIC, TAS & SA and a few storms in western NSW and eastern VIC. A trough is bringing showers to southwestern WA. A high is keeping elsewhere dry.
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Today, 4:02AM UTC
Low pressure system gives Tasmania a blast
A low pressure system will strengthen off the east coast of Tasmania Sunday, giving the Apple Isle a gusty blast. Strong-to-gale force southeasterly winds will batter the southern coastline and Hobart Sunday morning. Winds could possibly reach 90km/h in Hobart and 100km/h in exposed and elevated areas. Wind gusts across Tasmania Sunday 14th, using ECMWF There will also be some significant rainfall with the low pressure system with the east expecting falls, possibly heavy at times, between 40-120mm over the 48 hours to 10pm Monday. The Bureau of Meteorology has issued warnings for heavy rainfall and damaging winds for Tasmania’s south east on Sunday. You can view the warning s live from here: https://www.weatherzone.com.au/warnings As the low moves slightly to the west and centres itself over Tasmania on Monday, clockwise winds will surround the southernmost state with westerly winds in the north and easterlies in the south. Winds will be stronger in Bass Strait. Wind speeds at 10m across Tasmania Monday 15th, using ECMWF The low will move away to the east late Tuesday and Wednesday, providing a brief respite to Tasmanians. However, the calmer conditions won’t hang around for long as another strong front approaches from the west Thursday.
Today, 2:57AM UTC
When will the rain give Adelaide a break?
A series of troughs, cold fronts, and low pressure systems have been bringing showers, rain, and strong winds to Adelaide since last Wednesday. Until now, Thursday 11th had the highest daily rainfall for August, with 10.4mm. The question most relevant for those who want to enjoy the outdoors or simply wash (and dry) clothes is: when will this rain give us a break? Lows and troughs will keep causing showers and rain until Monday 15th. Accumulating precipitation between Saturday 13th and Monday 15th, using ECMWF High pressure will build over the region and bring a brief relief in showers on Tuesday 16th and Wednesday 17th. So enjoy these days while you can, because another series of troughs and fronts will bring more showers and rainfall later in the week. Adelaide has an average total rainfall of 61.3mm for August and has so far recorded 36.4mm in the city. In the past 13 days, only two of them were rain-free. That's why those who live in Adelaide have the feeling of being moldy.
12 Aug 2022, 3:41AM UTC
Snow forecast for at least the next week
The good news for Aussie snow-lovers is that snow is in the forecast pretty much every day for at least the next week or so. The bad news is there is currently some rain in the mix, especially on the lower slopes. But if you were forced to choose between a glass-half-empty and glass-half-full view of the week ahead, you’d definitely pick glass-half-full. There are still up to eight weeks in the local snow season, so any snow that accumulates is good snow, even if it's on the wet side. So how much snow is coming? Snow actually arrived yesterday in NSW and Victoria, and around 10-15 cm of fresh stuff had accumulated by Friday morning on higher slopes, while areas below about 1600 metres copped a bit of a drenching. Image: Friday morning fun in the fresh snow. Source: Hotham Instagram. Friday afternoon looks mostly clear, but snowfalls should increase over the weekend as a low pressure system currently centred near Adelaide slowly makes its way east. The snow level will start around 1400 metres on Saturday morning, gradually lowering to around 1200 m as winds turn more westerly. The snowy conditions should then stick around for most of the new week, with a pair of cold fronts looking likely to make an appearance later in the week. At this stage, it appears likely that something in a range between 30 and 60 cm will fall at the higher mainland ski resorts. Let's move on to our weekly wrap of conditions in the Aussie snowfields: Should I go to the snow this weekend? Go. Dress for snowy weather, but go. It won't be as windy as it can be when a really vigorous cold front rips through the moutnains, so that's one positive. Gloomy weather often keeps people off the slopes, so there's another reason to get amongst it. VICTORIA Mt Hotham, Falls Creek and Mt Buller all have most of their lifts open, so check the highlighted links for more info. Australia's lowest mainland resort, Mt Baw Baw, is suffering from limited snow, and really needs the weather to turn just a degree or so colder for this current system to deliver snow. That may happen by Sunday or Monday. Six of its seven lifts are open, but expect cutbacks if no fresh snow comes. More info here. NSW Thredbo, Perisher, and Charlotte Pass all have all or most lifts spinning despite the rain, so check the highlighted links for updates. Tasmania Still not such great news at Mt Mawson and Ben Lomond, where the patchy snow cover remains suitable only for snow play, however things may change by later week. As ever, please check the Weatherzone snow page for the latest cams, forecasts and other info.
Weather in Business
11 Jul 2022, 3:11AM UTC
Record month for wind power in Australia's National Electricity Market
New data shows June was one of the best ever months for renewable energy in Australia’s National Electricity Market and a record-breaking month for wind power. June 2022 was a relatively dry and cool month for much of eastern and southeastern Australia, with frequent periods of strong winds and clear skies. NSW registered its driest June since 1986, while Sydney and Brisbane had their sunniest June since 2004. This abundance of sunshine and wind created an ideal month for renewable energy generation in the National Electricity Market (NEM). The combined generation of solar (rooftop and utility), wind and hydropower across the NEM in June 2022 was 5,969 Gigawatt hours (GWh). This is the third highest monthly volume of renewable energy generation in the NEM in records dating back to 1998. Wind power Wind power had a record-breaking month in the NEM, with 2,527 GWh of generation in June 2022 beating the previous monthly record of 2472 GWh from July 2021. Victoria also set a new record for wind power in June this year, with 1,073 GWh easily surpassing the state’s previous record of 922 GWh from July 2021. Solar Power Solar power also had a strong month, with rooftop generation in June outperforming May 2022, despite May usually being the sunnier month. This was the first year on record where June rooftop solar generated more power than May. Utility solar also continued to see strong growth, producing 589 GWh in the NEM during June 2022, which was a big step up from 445 GWh in June 2021. Hydropower While June was a very dry month for large areas of eastern and southeastern Australia, an abundance of rain earlier in the year ensured that there was plenty of water available for hydropower. The NEM received 1,885 GWh of electricity from hydropower in June 2022, which was the 8th highest monthly value in 283 months of records dating back to 1998. The combination of favourable weather and continued growth in the sector caused June 2022 to be an exceptional, and in some cases record-breaking month for renewable energy in the NEM.
21 Jun 2022, 3:53AM UTC
La Nina floods make NSW ports too fresh for ships
La Niña has had a surprising impact on shipping operations in NSW this year, with increased freshwater outflows from flooded rivers affecting the behavior of ships entering some ports. Ships entering tidal ports in NSW are affected by local weather conditions, tides and waves, which can all affect a vessel’s ability to enter and operate safely within a port. One of the important things to consider when allowing larger vessels to enter NSW ports is the tide, which needs to be high enough to allow deep drafted vessels to enter, navigate and exit a port safely. This year, the window of time where water levels are high enough for ships to enter some NSW ports has been reduced by enhanced freshwater inflows from heavy rain and flooding. Image: Rainfall between January and May 2022 was in the top 10 percent of historical records for most of eastern NSW, with some areas receiving their highest rainfall on record for this period. Source: Bureau of Meteorology Freshwater is less dense than salt water, which allows ships to sit lower in the water. The prolific flooding seen in parts of eastern NSW earlier this year caused huge injections of freshwater into the coastal zone, which decreased salinity and affected shipping operations. According to Philip Perkins, Meteorologist and Sales Executive of Ports, Offshore and Safety at Weatherzone, "port users and operators at river-based terminals have been impacted by summer and autumn rainfall. “During high river flows water salinity is reduced. This means vessels can behave differently, resulting in elevated risk to vessels even at berth. Even when secured properly, berthed vessels can be impacted by passing traffic in the terminal.’’ In addition to the safety of ships, decreased salinity at river-based terminals can also reduce the window of time where larger vessels can enter these ports. In some cases, this may force ships to wait for the next high tide before entering or departing the port. Fortunately, river levels and discharge rates have now returned to more normal levels in eastern NSW. However, the ongoing influence of La Niña and a developing negative Indian Ocean Dipole increases the risk of more flooding in the months ahead. With the ground still holding a lot of water, any periods of heavy rain this winter and spring are likely to cause flooding, which may have immediate impacts on shipping operations.
