Earth famously possesses three distinct circulation cells per hemisphere.
Now out of curiosity one could use a weather app, like windy, to display the wind structures at ground level globally, and the supposed return winds at around 250 hPa height.
When I do that, the picture is very messy and I cannot see any clear circulation cells.
I suppose, that all the other messy physics of the Earths atmosphere will overlap with the cells, but is there a time in the year or variable I can use to see the circulation cells in wind maps?
Or are they in the end just an idealised time-average, that we use to model the winds / (trade winds, famously..) and don't exist at any given time?