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Scorching conditions and intense wildfires have swept through the parched landscape of Western Australia. With mercury levels forecast to persist climbing above 40C (104F) over the coming days, a major alert for extreme heat has been declared across much of the south-west.

Widespread Heatwave Alerts Throughout Multiple States

This situation follow this month's fires in another state, which caused the loss of homes and fatalities. Severe heat alerts have additionally been activated for later this week in areas within SA and New South Wales, as a ridge of high pressure shifts eastward, bringing blazing sunshine to much of the area.

The mix of extremely dry land and relentless heat creates a dangerous situation for firefighters.

Global Climatic Events Cause Disruption

Elsewhere, a metropolis was plunged into darkness last week after strong winds damaged the urban power grid, with falling trees knocking out power lines. The weather conditions also led to major transport delays at a key airport, where hundreds of flights were cancelled. Substantial damage to electrical infrastructure is anticipated to cause further problems as utility companies scramble to restore power to over 1 million inhabitants.

Unusual Mist Covers Typically Clear Region

At the same time, a region famed for its sunny weather and plentiful sunlight has experienced one of its dullest and most overcast weeks on record. A specific type of low cloud, which typically lasts for only a few days, has been unusually extensive and long-lasting this year, keeping the mercury at a major airport under 8C for over a week – the longest such streak in more than three decades. The extended haze has been driven by unprecedented fall precipitation that resulted in the ground saturated.

• Primary Driver: Record fall rains soaked the soil.
• Outcome: Prolonged and dense fog development.
• Effect: Temperatures stayed below average for an lengthy period.

Storm Delivers Snow to Tourist Islands

Turning to another country, a powerful storm has ushered in heavy rain, powerful gales and even snow to a group of islands – weather many would not connect with this popular tourist spot. While wintry precipitation is not unknown at higher ground, the system delivered some of the deepest snow depths since 2016 to a national park, compelling its closure.

In addition to the snowfall, strong winds from the north buffeted the island chain, with wind gusts reaching 50mph recorded on several locations. The influence of the weather event is expected to diminish this week with more typical weather taking hold.