20°F Above Normal: Dome Bakes West, Fueling 115°F Days and Fire Risk
An unprecedented heat dome pulses across the Western US, driving temperature anomalies up to 20°F above normal, with Phoenix hitting 115°F and Las Vegas above 110°F for days. The prolonged event amplifies wildfire danger and strains energy grids, illustrating the accelerating frequency of climate‑fueled extreme heat.
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