Heat dome to topple records in drought-stricken Plains and Western states

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🗞️ Driving the news: A powerful heat dome is expected to bring record-breaking temperatures across drought-stricken parts of the Western and Central United States, increasing fire risks across millions of acres
• Temperatures could exceed 110°F in parts of Idaho, Montana and Wyoming

🔭 The context: The heat dome will first affect the Intermountain West before expanding toward the northern Plains and Upper Midwest
• Scientists link the pattern to atmospheric changes associated with a developing El Niño, while noting that rising global temperatures are increasing the intensity of extreme heat events

🌍 Why it matters for the planet: Extreme heat combined with drought creates conditions that accelerate wildfire risk, dry ecosystems and increase climate stress on landscapes
• More frequent and intense heat domes are becoming a growing indicator of how climate change is amplifying weather extremes

⏭️ What’s next: Forecasters expect the heat dome to peak over the weekend and move into the Central U.S. next week
• Monitoring will focus on potential record temperatures, lightning-triggered fires and whether increased moisture later in July can provide some relief.

💬 One quote: “I would not at all be surprised to see these risk areas expanded or upgraded from elevated to critical.” – Daniel Swain, climate scientist

📈 One stat: Around 33 million people are currently under heat and/or fire weather alerts linked to the developing heat dome