World location_Snow

welcome
I'm interested in a topic about weather
can you help me ?
I want it to snow in some areas (hidden village) for example
I did some unsuccessful experiments.. where I modified a table World location without result

Like snow on the island ,, :D

Can you guide me to do that?
thank you all

Did you make the corresponding RDB for the client db_worldlocation.rdb?

Or just modified the database table?

Yes my friend I did
I also tried calling the command to change the weather within the script

-- get_current_weather_theme()
-- set_current_weather_theme( theme_id, theme_property )

in weather_script.lua

something is missing !?