Winter Storm Enzo brings rare snowfall to the Gulf Coast, Arctic Blast intensifies

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The powerful Arctic Blast is underway across Canada and the United States, spreading south across the continent. This is the most significant this season, thanks … Read more

Red sprites, gigantic jets, elves: Captivating upper-atmosphere lightning

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If ordinary lightning seems pretty ordinary, upper-atmosphere lightning is something else – an entire zoo of various upper-atmosphere electrical discharges. Red sprites, gigantic and blue … Read more

Understanding severe thunderstorms: criteria and impact

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During storm season, there is increasing talk about severe thunderstorms. What does “severe” in severe thunderstorms mean? When does a thunderstorm become severe? What criteria … Read more