Update: 45.3C Richmond smashes the previous record of 1982 42C - Time will tell whether such heat can be matched or bettered in the middle of summer given we still are officially in late spring!
After temperatures soared to 40C today in western Sydney, models seem to be pointing to a brief respite before extreme heat returns Sunday including Sydney. A southerly change moved through Sydney this evening cooling temperatures. On Sunday, temperatures are once again expecting to top 40C across western Sydney and the Hunter Valley region! Thunderstorms may develop across the region but these are expected to be very high based and more of a Lightning" href="http://www.extremestorms.com.au/weather-glossary/lightning/" data-tooltip="Any form of visible electrical discharges produced by thunderstorms.">lightning producers. Such conditions may be ideal for the spakring up of fires due to the relatively low rainfall from these Storm" href="http://www.extremestorms.com.au/weather-glossary/storm/" data-tooltip="In marine usage, winds 48 knots (55 mph) or greater. Storm is also used as a shortened term for thunderstorm which represents clouds that produce lightning, thunder and precipitation.">storm cells!