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Scorching conditions and raging bushfires have devastated the dry landscape of Western Australia. As mercury levels forecast to persist climbing above 40C (104F) over the next few days, a major alert for extreme heat has been declared across a large portion of the southwestern region.

Broad Extreme Heat Warnings Across Multiple States

These conditions follow recent bushfires in another state, which resulted in the loss of properties and loss of life. Intense heatwave warnings have additionally been issued for later this week in areas within South Australia and New South Wales, as a ridge of atmospheric pressure shifts eastward, bringing blazing heat to a broad swath of the area.

The mix of tinder-dry land and relentless heat presents a volatile scenario for firefighters.

Global Weather Extremes Trigger Chaos

Elsewhere, a major city was plunged into darkness last week after powerful gusts damaged the city’s electrical network, with falling trees knocking out power lines. The stormy weather also led to major travel disruption at a key airport, where numerous air services were cancelled. Severe damage to power systems is anticipated to create further problems as service providers work urgently to reconnect electricity to over 1 million residents.

Unusual Fog Covers Typically Clear Region

At the same time, a region known for its clear skies and abundant sunlight has endured one of its grayest and most overcast weeks on recorded history. A specific type of low cloud, which usually lasts for only a short time, has been unusually extensive and persistent this year, keeping temperatures at a key transport hub under 8C for over a week – the most prolonged period in more than three decades. The extended haze has been fuelled by exceptional autumn precipitation that resulted in the ground saturated.

• Key Factor: Exceptional fall rains soaked the ground.
• Outcome: Prolonged and dense fog formation.
• Impact: Thermal readings remained unseasonably low for an lengthy period.

Severe Weather Brings Wintry Weather to Tourist Islands

And in Spain, a powerful storm has ushered in heavy rainfall, strong gales and even snowfall to a set of islands – weather many would not connect with this favored holiday destination. While snow is not unheard of at higher ground, the storm brought some of the heaviest accumulations since 2016 to a national park, compelling its temporary shutdown.

Alongside the snow, fierce winds from the north buffeted the archipelago, with wind gusts exceeding 50mph recorded on several locations. The effect of the weather event is forecast to diminish this week with more typical conditions taking hold.