@Ansar-khan
Windy visualises weather models from Meteorological centres as ECMWF, NOAA, DWD… and others.
https://wxguys.ssec.wisc.edu/2019/03/04/models/
So Windy cannot modified the data or analyse it for modification. Windy does NOT forecast any weather parameter as you seem to think.
Have you tried using all the weather models available in your area?
When you have convective rain it is very difficult for global models with a medium or low resolution to predict such rain. But concerning the atmospheric pressure I doubt that ECMWF, GFS and ICON are not able to forecast the right pressure variations.

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