Incorrrect radar data
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Location: Chennai, Tamil Nadu, India
Issue: Satellite layer does not match real-time radar observations
Time of observation : 17:00 hrs IST
Windy Data
Actual Radar Image
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@idefix37 or @Suty will have to confirm this after my slip up earlier.
My theory is that the picture you attached is the MAX amount of dbz that the radar got back while I have attached the image showing Surface Rainfall Rates compared to what windy is saying, but Just a theory.
I think windy is shows your chart not the rainfall rate that I attached. Playing through the last 24h, the rain over the city does not move with the clouds so I think it is noise generated by structures such as tall buildings and hills, but I don't live there so can not confirm that.
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Hi @Sarvesh-Bhuvanakumar and @WeatherMan10. For Chennai, we are using combination of PPI (long range reflectivity scan) and CMAX (short-range composite reflectivity):
