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Extreme heat and intense bushfires have swept through the parched landscape of Western Australia. As temperatures expected to persist climbing above 40C (104F) over the coming days, a major alert for extreme heat has been declared across a large portion of the south-west.

Widespread Heatwave Alerts Across the Region

This situation come after this month's bushfires in New South Wales, which resulted in the destruction of properties and loss of life. Severe heatwave warnings have additionally been activated for later this week in areas within SA and NSW, as a system of atmospheric pressure shifts to the east, bringing intense heat to much of the area.

The mix of tinder-dry vegetation and relentless high temperatures presents a dangerous scenario for emergency crews.

Worldwide Climatic Events Cause Chaos

In another part of the world, a metropolis was left in blackout last week after strong gusts compromised the urban electrical network, with toppled trees bringing down power lines. The stormy weather also caused significant travel disruption at a key airport, where hundreds of flights were cancelled. Severe impact on electrical infrastructure is expected to create ongoing issues as utility companies scramble to restore power to more than 1 million residents.

Atypical Fog Covers Sunny Region

Meanwhile, a valley known for its sunny weather and abundant sunlight has experienced one of its dullest and foggiest weeks on record. A particular form of low cloud, which usually lasts for only a short time, has been unusually widespread and persistent this year, holding the mercury at a key transport hub below 8C for over a week – the longest such streak in more than three decades. The prolonged haze has been fuelled by exceptional autumn precipitation that left soils saturated.

• Key Factor: Exceptional autumn rainfall soaked the soil.
• Result: Prolonged and thick fog formation.
• Impact: Temperatures stayed below average for an extended period.

Severe Weather Delivers Snow to Tourist Destination

And in Spain, a powerful storm has brought heavy rainfall, strong winds and even snow to a group of islands – conditions many would not associate with this popular holiday destination. While wintry precipitation is not unknown at elevated areas, the system brought some of the deepest accumulations since 2016 to a protected area, compelling its closure.

Alongside the snow, strong northerly winds buffeted the island chain, with gusts reaching 50mph recorded on several islands. The effect of the weather event is forecast to ease this week with more seasonal weather returning.