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Scorching conditions and intense wildfires have devastated the dry landscape of Western Australia. As mercury levels expected to persist climbing above 40C (104F) over the coming days, a severe heatwave warning has been declared across a large portion of the south-west.

Widespread Heatwave Alerts Throughout the Region

These conditions follow this month's bushfires in another state, which resulted in the destruction of properties and loss of life. Severe heat alerts have additionally been activated for the coming days in areas within SA and NSW, as a ridge of atmospheric pressure shifts eastward, bringing blazing heat to a broad swath of the region.

The combination of extremely dry vegetation and relentless heat presents a volatile situation for emergency crews.

Worldwide Climatic Events Cause Chaos

In another part of the world, a metropolis was plunged into darkness recently after strong winds compromised the urban power grid, with falling trees knocking out power lines. The stormy weather also caused major transport delays at a key airport, where numerous air services were cancelled. Substantial impact on electrical infrastructure is expected to cause further problems as service providers work urgently to reconnect electricity to more than 1 million inhabitants.

Atypical Fog Covers Typically Clear Area

Meanwhile, a region famed for its sunny weather and abundant sunshine has experienced one of its dullest and foggiest periods on recorded history. A specific type of fog, which typically lingers for only a few days, has been remarkably extensive and persistent this year, holding the mercury at a key transport hub under 8C for more than a week – the most prolonged period in over three decades. The prolonged fog has been driven by unprecedented fall precipitation that resulted in the ground waterlogged.

• Primary Driver: Record autumn rainfall soaked the soil.
• Result: Extended and dense fog formation.
• Impact: Thermal readings remained unseasonably low for an lengthy period.

Storm Delivers Wintry Weather to Tourist Islands

Turning to another country, a powerful storm has ushered in heavy rainfall, strong gales and even snow to a group of islands – conditions many would not associate with this popular holiday destination. While snow is not unknown at elevated areas, the system delivered some of the heaviest accumulations since 2016 to a protected area, forcing its closure.

In addition to the snowfall, strong winds from the north swept across the island chain, with wind gusts exceeding 50mph observed on several islands. The effect of the storm is expected to ease this week with more typical conditions taking hold.