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Can anyone explain what is driving such an off-the-scale Greenland high in GFS models on Saturday night. The contours are so close together it’s difficult to read them but it looks like pressure could reach 1110 - which I think is beyond all previous records. what is going on? Is model wrong? Is there something exceptional happening? https://max.nwstatic.co.uk/gfsimages/gfs.20210402/12/39/h850t850eu.png
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- high pressure
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From the album: Boring Weather - February 2015
Look at the size of that! Bigger than usual high. -
An anticyclone is a strong area of high pressure centered over a large area, under this the weather is dry with clear blue skies during the day and starry nights but sometimes with mist and fog, usually the wind is light or calm in general, although sea breezes can develop during the day. We are having high pressure there is dry and sometimes calm conditions but it seems that there is always cloud and quite often windy, this is because the high pressure is either in weaker form or being on the edge or the high pressure making things more windy, the cloud is probably stratus and flat cumulus, the cumulus is not allowed to build up high is squashed into a thin layer and as this happens the cloud becomes more flat and wide instead of going up and rising. There's my explanation of an anticyclone and the changes we have and are experiencing especially over the last several years. Below is some info from an article. http://www.coolgeography.co.uk/A-level/AQA/Year%2013/Weather%20and%20climate/British%20Isles/British-Anticyclones.htm So that's what an anticyclone is and it's affects on our weather, but why is there less of these, what could be the causes and are they going to return?
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- more cloudy highs
- not much clear sky
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