Weather News

Severe storms and heatwave to end the week in NSW

Ben Domensino, Wednesday December 19, 2018 - 11:24 EDT

Severe thunderstorms and a severe heatwave will affect parts of NSW during the second half of this week.

A large pool of hot air from central Australia will sweep over NSW during the coming days, ahead of a broad low pressure trough.

Wednesday is forecast to be the third consecutive day to reach the low to mid forties in Alice Springs. Their top of 44.1 degrees on Tuesday was the site's highest December temperature since 1990 and just 0.1 degree shy of its December record.

This mass of hot air will sweep across NSW between Wednesday and Friday, sending the mercury soaring in the state's north and west.

Bourke could reach the low to mid forties on these three days and may get close the Airport's December record of 46.3 degrees on Thursday.

The hottest day of the week for many parts of the state will be Thursday, with temperatures climbing 6-12 degrees above average in many areas.

Image: Forecast surface temperatures on Thursday December 20th, 2018 by ACCESS-R model.

Most of northern NSW will experience a severe heatwave between Wednesday and Friday as both maximum and minimum temperatures remain above average. While severe heatwaves are generally not life threatening, they can be challenging for vulnerable people, such as the elderly, pregnant women, young children and people with a chronic illness.

The passage of the trough across NSW will also help trigger showers and thunderstorms, some of which are likely to become severe.

Showers and thunderstorms are likely near the coast, ranges, western slopes and northern plains on Wednesday and Thursday. Severe storms are likely to develop in multiple districts and could produce heavy rain, flash flooding and large hail. Supercell thunderstorms are also possible in some areas.

Showers and storms will develop on and near the ranges again on Friday and Saturday, becoming more confined to northeastern parts of the state and less likely in the south and west.

By Sunday, the atmosphere will become more stable and storms less likely across most of the state.

More breaking news

Sydney Morning Herald
ABC News
National Nine News
News Limited

Display Your Local Weather

Weather News

Extreme weather red zones: Will you be slugged with higher insurance costs?

09:42 EDT

#headerlayered #endheader It's the lingering stench that stands out in Kym Blackwell's mind when she walks through the rotting remains of her Townsville apartment complex.

India just had its latest monsoon withdrawal on record, so what will it mean for Australia?

08:30 EDT

This year's Indian monsoon withdrawal was the latest on record by more than a week, meaning a delayed start to Australia's monsoon season is likely.

Farmers ask Scott Morrison to consider financial incentives to leave drought-affected land

08:25 EDT

The National Farmers' Federation says it has written to Prime Minister Scott Morrison, asking him to consider providing financial incentives for drought-affected farmers to leave the land.