How to read the thermal charts
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I cant figure it out.
Color indicates altitude, but if its grey, does it mean thermals are on ground level? I assume not, but could anyone please explain it a little better?
Cheers -
@christer-dahl-2
Thermals are upward currents of air due to convection.
When Windy shows a grey colour, that just means there are no thermals, the atmosphere is stable.
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