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Howie

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Posts posted by Howie

  1. 8 minutes ago, bumpydogz said:

    50% of them maybe? 

     

    4 minutes ago, Jason M said:

    Yes. Actually a good number of easterlies in amongst them from day 9 onwards. Not many 'beasterlies' but certainly a good few that would be cold enough. 

    -6 at 850 level in a continental airmass is a different story completely. Can achieve an ice day with that (especially in late Dec early Jan), whereas in a day 2 PM airmass 5-6c is often achievable. 

    Looking good

  2. Just now, nick sussex said:

    It’s important to build sufficient heights into Greenland so we do need the amplification but timing could be crucial .

    So more about when that happens . The key feature is that shortwave you see over the eastern seaboard .

    That pivots, to its right warmer air pushes north into west Greenland which promotes heights building by WAA.

    As the jet amplifies upstream heading north , downstream the jet goes south taking that low near Greenland s/se.

    The coldest air will be on the nw and west flank of the low so that needs to get to the se of the UK and not just fill over the country .

    Fingers crossed! The mean is much further east with the low so hopefully the operational run was an outlier

    • Like 1
  3. 1 minute ago, nick sussex said:

    Ironically the UKMO which wasn’t good this morning but which has improved this evening might provide a better evolution post day 6 .

    The GFS is too amplified at the wrong time , the UKMO is flatter but as that shortwave in the eastern USA amplifies the drop down point for the low near Greenland should be further to the east .

    Interesting! So hopefully a halfway house would be decent?

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