... will result a heat wave.
I think, cloud top temperature scale must be visible only in conjunction with INFRA+.
It has no use with VIS nor INFRA.
... BTW, is there any free source for AMDAR (or ACARS) data?
You are comparing forecast data (Windy) with observed data
(I supose Flightradar24 shows measurments from aircraft's AMDAR system (Aircraft Meteorological Data Relay).
This is one reason explaining the difference.
In my opinion there is no signifficant diference in wind speed (60-70 vs 50-60).
Differences in wind direction may be due to jet stream afecting the area.
Furthermore, errors can occur when the aircraft is maneuvering (roll angles > 5).
After all, we don't know if the instrument is well-maintained.
Firstly, I must let you know that I'm not Windy's personnel.
So, I can't answer all of your questions.
I don't know Windy's plans for the future.
About sky condition, NOAA uses the following definitions :
Turkish State Meteo. Service uses the following symbols:
(cloud coverage in octas as I interpret them)
My question to you:
What is the usefulness if Windy adds a "mostly sunny" icon?
"Partly cloudy" is not enough?
Do you think that the average reader
can see any difference between the following icons?
I would like to raise the matter of showing model's altitude into meteograms
as I proposed here