This Will Be The Most Dangerous Fourth Of July Yet - Here's What's Coming

Описание: Two heat domes are merging over the United States — and the seam where they join is set to park over the eastern half of the country on the Fourth of July. That single setup is about to drive dangerous, record-threatening heat over tens of millions of people, with feels-like temperatures reaching as high as 114°F and daily records in jeopardy all along the East Coast. But the heat is only half the story. The same stalled ridge is acting as a racetrack for severe storms along its northern edge, with damaging winds up to 85 mph, baseball-sized hail, and tornadoes threatening the northern tier for days — right through the holiday.

In this briefing, we break down exactly how a heat dome forms, why "ring of fire" storms wrap around its edge, and the compounding nightmare of a grid-crippling derecho striking during peak heat — the exact disaster that played out on June 29, 2012. We also revisit the 1911 heat wave that began on the Fourth of July and still holds Boston's all-time record, cover the storm threat timed to the fireworks hours, and look at what comes after the holiday, including early signs of tropical development off the Southeast coast.

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This video is for educational and informational purposes. Forecasts and figures are based on publicly available data and outlooks and are subject to change; any speculation is clearly labeled as such.

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