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Scorching conditions and intense bushfires have swept through the parched landscape of Western Australia. As temperatures expected to continue soaring above 40C (104F) over the next few days, a major heatwave warning has been issued across much of the south-west.

Broad Extreme Heat Warnings Across the Region

This situation follow recent bushfires in another state, which resulted in the loss of homes and loss of life. Intense heat alerts have additionally been activated for later this week in areas within SA and NSW, as a ridge of atmospheric pressure shifts eastward, delivering blazing heat to much of the region.

The combination of extremely dry land and relentless heat creates a dangerous situation for emergency crews.

Worldwide Climatic Events Trigger Chaos

In another part of the world, a major city was left in darkness recently after powerful gusts compromised the urban power grid, with falling trees knocking out power lines. The stormy weather also led to significant travel disruption at a key airport, where numerous flights were cancelled. Severe damage to power systems is expected to cause further issues as service providers scramble to restore power to over 1 million inhabitants.

Atypical Mist Blankets Typically Clear Region

Meanwhile, a region famed for its clear skies and plentiful sunshine has experienced one of its dullest and most overcast weeks on recorded history. A specific type of low cloud, which typically lasts for only a short time, has been remarkably extensive and persistent this year, holding the mercury at a key transport hub below 8C for more than a week – the most prolonged period in more than three decades. The extended fog has been driven by unprecedented autumn rainfall that resulted in the ground saturated.

• Key Factor: Exceptional autumn rainfall saturated the ground.
• Outcome: Prolonged and dense fog development.
• Effect: Temperatures stayed below average for an lengthy period.

Storm Brings Wintry Weather to Tourist Islands

And in Spain, a weather system has ushered in heavy rain, powerful gales and even snow to a group of islands – weather many would not connect with this popular holiday destination. While snow is not unknown at elevated areas, the storm delivered some of the deepest accumulations since 2016 to a national park, forcing its closure.

In addition to the snow, fierce northerly winds swept across the island chain, with gusts exceeding 50mph observed on multiple locations. The influence of the storm is forecast to ease this week with more seasonal conditions taking hold.