Sydney summer weather prediction

T his year saw some of the hottest temperatures ever recorded over a sustained period in the northern hemisphere, with stories of intense rainfall and flood, drought, wildfires and heat-induced illness — even death — abounding.

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Sydney summer weather prediction

The Bureau of Meteorology BOM has declared two major climate drivers linked to hot, dry conditions are officially underway in Australia, prompting further warnings that extreme heat could hit this spring and summer. At a press conference on Tuesday afternoon, BOM also announced the lesser known, but also significant, climate driver, known as a "positive" Indian Ocean Dipole IOD , has also developed. The onset of the two major climate events means the remaining months of in Australia are likely to be hot and dry, particularly in the eastern states. Combined with the background warming of climate change, climate scientists have warned Australia could be in for a summer of severe heat. The announcement came as parts of New South Wales were put on alert for "catastrophic" fire danger , with strong winds combining with unusually hot temperatures in the south-eastern parts of the state. That criteria has now been met, meaning BOM has confidence the event will influence Australia's weather for a prolonged period of time. Events typically last between nine months and a year, with the effects over Australia peaking during winter and spring. The major climate driver is characterised by a shift in warm waters and cloud from the western Pacific to the central Pacific, which leads to a reduction in rain over Australia and increased temperatures. This means it is often associated with drought, extreme heat and bushfires. The dry influence is particularly strong for Queensland and New South Wales.

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So, what has happened to our summer, and will we see a return to hotter and drier conditions? This is related to a weakening of the easterly winds near the equator called the trade winds. When we have these conditions, we also see a shift in weather patterns with low pressure moving further east in the Pacific and a tendency for higher atmospheric pressure nearer Australia. High pressure is associated with air sinking rather than rising in the atmosphere, and this promotes clear skies and drier weather. In contrast, when we have low pressure, air rises and cools causing condensation of water vapour, cloudy skies and rainfall to occur. If we cast our minds back to the start of spring, Australia experienced a warm and record-dry September. As spring progressed, we saw the rain take hold, first in Eastern Victoria in October and then more widely in November and December, particularly in parts of eastern Australia.

Auto news : City council votes on higher parking fees for 'idiot' SUV and ute owners. Your web browser is no longer supported. To improve your experience update it here. News National. Tweet Facebook Mail. There's lot of trees about, so if it did get hot and dry there's lots of load there for fires. This takes the energy for rainfall with it, causing drier and hotter conditions across much of the globe - and Australia.

Sydney summer weather prediction

The figure below shows you a compact characterization of the hourly average summer temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. A wet day is one with at least 0. To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding day period centered around each day. The average sliding day rainfall during the summer in Sydney is increasing , starting the season at 2. The highest average day accumulation is 4. The lowest average day accumulation is 2.

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Climate Outlook Rainfall Outlook. Weatherzone Business Leverage precise weather intelligence and decision-making solutions for your business Tick Icon in Circle Aviation. The national mean temperature was 1. The onset of the two major climate events means the remaining months of in Australia are likely to be hot and dry, particularly in the eastern states. Climate anxiety is distress related to worries about our changing climate. In contrast, around western Australia, the sea surface temperatures are not notably higher than normal and many regions in the west have been dry so far this summer, with one example being no rain in Perth at all during December. Source: Bureau of Meteorology. Stay hydrated. If you develop symptoms related to extremely poor air quality or severe heat and are concerned about your health, please call the hour HealthDirect helpline on or in an emergency call triple zero for an ambulance. Mow your lawn regularly. Temperatures will generally be warmer than average for most of Australia this summer, with an increased risk of heat extremes. This means that parts of Australia will likely experience warmer and drier conditions with minimal rainfall, increasing the risk of heatwaves and fire danger.

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Consider your own health. Our Central Operations Services team has reviewed the available air-conditioning systems across our campuses, and where the best indoor locations on campus are for offering respite from the high temperatures outdoors. This vegetation has been drying out this year after a record-breaking dry spell in the first two months of spring and unusually warm temperatures in recent months. But these 'double whammy' events do not guarantee dire outcomes. Warmer weather can affect everyone; however, some people are at greater risk than others. You can also visit Air Quality NSW , a new dedicated air quality website from the government with real-time air quality data and information. Share Copy link Facebook X formerly Twitter. For opening times outside of the shutdown period at each library, please check the Library website. According to the State of the Climate report, the past decade has seen record-breaking extremes leading to natural disasters, all exacerbated by human-caused climate change. Weatherzone Business Leverage precise weather intelligence and decision-making solutions for your business Tick Icon in Circle Aviation. Consider your general health and know if you are at higher risk from bushfire smoke due to pre-existing health conditions, like asthma. Extreme weather events Stay up to date on our campus operations.