Briefing: Historic March heatwave in US west shatters high-temperature records

The recent heatwave across the US southwest has resulted in unprecedented temperature anomalies, with highs reported at 25-35F above seasonal norms.

States including California, Nevada, and Arizona have issued widespread alerts and closures, indicating the strain on local infrastructure and emergency services.

This extreme weather event not only poses immediate operational challenges but also raises questions about long-term capacity planning and resilience in the face of climate variability.