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Extreme heat and raging bushfires have devastated the dry landscape of Western Australia. As mercury levels forecast to persist soaring above 40C (104F) over the coming days, a severe heatwave warning has been issued across a large portion of the southwestern region.

Broad Heatwave Warnings Across the Region

This situation follow this month's bushfires in New South Wales, which resulted in the loss of homes and loss of life. Severe heat alerts have additionally been issued for the coming days in areas within SA and NSW, as a system of high pressure shifts to the east, delivering intense sunshine to a broad swath of the area.

The combination of tinder-dry land and unbroken high temperatures creates a dangerous scenario for emergency crews.

Worldwide Weather Extremes Trigger Chaos

Elsewhere, a metropolis was left in darkness last week after strong winds compromised the urban electrical network, with toppled trees bringing down electricity cables. The stormy weather also led to major travel disruption at a key airport, where hundreds of flights were cancelled. Severe impact on power systems is anticipated to create further problems as service providers work urgently to reconnect electricity to more than 1 million inhabitants.

Unusual Mist Covers Typically Clear Area

At the same time, a valley famed for its sunny weather and plentiful sunshine has experienced one of its grayest and foggiest periods on record. A specific type of low cloud, which usually lasts for only a short time, has been remarkably extensive and long-lasting this year, holding temperatures at a major airport under 8C for more than a week – the longest such streak in more than three decades. The extended haze has been driven by unprecedented autumn precipitation that resulted in soils waterlogged.

• Primary Driver: Record autumn rainfall soaked the ground.
• Outcome: Extended and thick mist formation.
• Effect: Temperatures stayed unseasonably low for an lengthy period.

Storm Delivers Wintry Weather to Tourist Destination

And in another country, a powerful storm has ushered in heavy rain, powerful winds and even snowfall to a set of islands – conditions many would not associate with this popular holiday destination. While snow is not unknown at higher ground, the system brought some of the heaviest accumulations since 2016 to a national park, forcing its temporary shutdown.

Alongside the snowfall, fierce winds from the north swept across the archipelago, with gusts exceeding 50mph observed on multiple locations. The influence of the storm is forecast to ease this week with more seasonal weather returning.