Precipitation (snow) trouble

Hi all, I woukd like to send my question to Activesky technicians or everyone that can help me.In this season many, many, many places (north latitude!) report snow on metar, without cloud coverage indications (frequently in very short visibility cases). On flight simulator we don't see any snowflake because there are no cloud layer (where put snow condition).It's a pity that great software like this wrong FS weather setting!What do you suggest for this?I wish all a happy new year!Paolo