UK Autumn High Pressure Brings Grey Skies, Not Sunshine — SkimNews
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- High-pressure systems persist over the UK in autumn, leading to stagnant air that traps low cloud, mist, and fog instead of dispersing them.
- Anticyclonic gloom develops when reduced sunlight fails to burn off the accumulated moisture and cloud cover, resulting in prolonged dull conditions.
- Autumn weather patterns differ from summer high pressure, which typically brings clear skies, because cooler temperatures and shorter days limit atmospheric mixing.
- Low wind conditions during autumn highs prevent the dispersion of fog and mist, allowing them to linger for days over large areas.
Why it matters: This shift explains why UK residents face extended periods of dreary weather in autumn despite stable high pressure—typically a sign of good weather—altering expectations for seasonal forecasts and affecting mood and visibility over weeks. The phenomenon directly impacts transportation and mental well-being during a season already marked by reduced daylight.
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