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

Widespread Heatwave Warnings Across the Region

This situation come after this month's fires in another state, which caused the loss of homes and fatalities. Intense heatwave warnings have also been issued for later this week in areas within SA and NSW, as a system of atmospheric pressure moves eastward, delivering intense heat to much of the region.

The combination of tinder-dry vegetation and unbroken heat creates a volatile situation for emergency crews.

Worldwide Weather Extremes Trigger Disruption

Elsewhere, a major city was plunged into darkness recently after strong gusts compromised the urban electrical network, with toppled trees knocking out power lines. The weather conditions also led to significant travel disruption at a major airport, where hundreds of air services were cancelled. Severe damage to power systems is anticipated to create further problems as service providers work urgently to restore power to over 1 million inhabitants.

Unusual Mist Covers Sunny Area

Meanwhile, a valley known for its sunny weather and abundant sunshine has endured one of its dullest and foggiest weeks on recorded history. A specific type of low cloud, which typically lingers for only a short time, has been unusually widespread and persistent this year, holding temperatures at a key transport hub below 8C for more than a week – the longest such streak in more than three decades. The extended haze has been driven by unprecedented autumn rainfall that resulted in the ground waterlogged.

• Primary Driver: Exceptional fall rains soaked the soil.
• Result: Extended and thick mist formation.
• Effect: Thermal readings remained below average for an lengthy time.

Storm Delivers Wintry Weather to Holiday Destination

Turning to another country, a weather system has brought intense rainfall, strong gales and even snowfall to a set of islands – conditions many would not connect with this popular holiday destination. While snow is not unheard of at higher ground, the system delivered some of the heaviest snow depths since 2016 to a protected area, compelling its temporary shutdown.

Alongside the snow, fierce northerly winds buffeted the island chain, with gusts exceeding 50mph observed on multiple islands. The effect of the storm is expected to diminish this week with more seasonal weather taking hold.