Local winds, unlike global winds, are significantly influenced by the immediate landscape features like mountains and bodies of water, creating unique microclimates over relatively small areas.
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Upper air observations, crucial for weather forecasting, are often taken using weather balloons that can reach altitudes of over 100,000 feet.
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Mammatus clouds, despite their ominous appearance, don't usually indicate severe weather is *directly* imminent. They're more often associated with the aftermath of a storm.
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The sky appears blue during the day due to a phenomenon called Rayleigh scattering, where shorter wavelengths of light (blue and violet) are scattered more by the atmosphere than longer wavelengths (red and orange).
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