ナショナルジオグラフィックのインスタグラム(natgeo) - 9月13日 09時30分

Photo by @Keith Ladzinski | A giant #supercell menacingly swirls above a small town outside Elk City Oklahoma. Supercell's commonly generate severe weather and can explosively build to nearly 70,000 feet tall. They're different from all other thunderstorms in that they contain a persistent rotating updraft called a mesocyclone, which can generate tornados when they become powerful enough.

[BIHAKUEN]UVシールド(UVShield)

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