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Scorching conditions and intense bushfires have devastated the parched landscape of Western Australia. With mercury levels forecast to continue soaring above 40C (104F) over the next few days, a severe heatwave warning has been issued across a large portion of the south-west.

Widespread Heatwave Alerts Throughout the Region

These conditions follow this month's fires in another state, which resulted in the loss of properties and fatalities. Severe heatwave warnings have additionally been activated for later this week in parts of South Australia and NSW, as a ridge of atmospheric pressure moves to the east, delivering blazing heat to a broad swath of the region.

The combination of tinder-dry land and relentless high temperatures presents a dangerous situation for emergency crews.

Global Weather Extremes Trigger Disruption

In another part of the world, a major city was plunged into blackout last week after strong winds damaged the urban electrical network, with falling trees knocking out power lines. The stormy weather also led to major transport delays at a key airport, where numerous air services were cancelled. Severe damage to electrical infrastructure is anticipated to create further issues as utility companies scramble to reconnect electricity to more than 1 million residents.

Unusual Mist Blankets Typically Clear Region

Meanwhile, a valley famed for its sunny weather and abundant sunshine has endured one of its grayest and foggiest weeks on record. A specific type of low cloud, which usually lingers for only a short time, has been unusually widespread and long-lasting this year, keeping the mercury at a key transport hub under 8C for more than a week – the longest such streak in more than three decades. The prolonged fog has been driven by exceptional autumn precipitation that left the ground waterlogged.

• Primary Driver: Record fall rains saturated the soil.
• Result: Extended and thick mist development.
• Effect: Temperatures stayed below average for an extended time.

Severe Weather Brings Wintry Weather to Tourist Islands

And in Spain, a powerful storm has brought intense rain, strong gales and even snowfall to a group of islands – weather many would not associate with this favored holiday destination. While snow is not unheard of at elevated areas, the system delivered some of the heaviest accumulations since 2016 to a national park, compelling its temporary shutdown.

Alongside the snowfall, fierce winds from the north swept across the island chain, with gusts exceeding 50mph recorded on several islands. The effect of the weather event is expected to ease this week with more typical conditions taking hold.