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Why does wind die down at night and return at day

  • 02-05-2011 10:31am
    #1
    Registered Users, Registered Users 2 Posts: 7,138 ✭✭✭


    Noticed the last few days that the wind seems to dissapear in the evening and then return again at sunrise. Why is this? Wind is very strong today


Comments

  • Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    During the day, turbulence in the boundary layer increases, dragging down some stronger winds from above. Sea breezes also become established through the differential heating of the land and sea.

    At night, with no solar heating, the boundary layer becomes stably stratified, with cool layers near the surface. This setup keeps stronger winds several hundred metres above the surface.


  • Registered Users, Registered Users 2 Posts: 699 ✭✭✭glossy


    Su Campu when will the wind die down ?


  • Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    Doesn't look to be much end in sight, but the winds will veer more southerly as the week goes on, so the east may get a break from the chill.


  • Registered Users, Registered Users 2 Posts: 699 ✭✭✭glossy


    Su Campu wrote: »
    Doesn't look to be much end in sight, but the winds will veer more southerly as the week goes on, so the east may get a break from the chill.

    at least it will take the chill factor away,,thanks


  • Registered Users, Registered Users 2 Posts: 7,138 ✭✭✭snaps


    Thanks for your reply


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  • Registered Users, Registered Users 2 Posts: 425 ✭✭deecom


    Thanks for that, makes sense.


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