How autumnal high pressure brings on the dark doldrums
With no wind to disperse the low cloud, mist and fog and less sunlight to burn it off, anticyclonic gloom can set in In summer, a high-pressure system over the UK usually means fine weather. But in the colder months it can result in anticyclonic gloom, characterised by grey skies, mist, fog and drizzle. A settled high-pressure system brings stable conditions and impedes the usual vertical movement of air. This is a recipe for sunshine when humidity is low, but can act like a lid, trapping atmospheric moisture near the surface. Continue reading...
Published on RocksNews
Updated
Language
English
How autumnal high pressure brings on the dark doldrums — Image credit: Photograph: Gary Calton/The Guardian
With no wind to disperse the low cloud, mist and fog and less sunlight to burn it off, anticyclonic gloom can set in In summer, a high-pressure system over the UK usually means fine weather. But in the colder months it can result in anticyclonic gloom, characterised by grey skies, mist, fog and drizzle. A settled high-pressure system brings stable conditions and impedes the usual vertical movement of air. This is a recipe for sunshine when humidity is low, but can act like a lid, trapping atmospheric moisture near the surface. Continue reading...
