The reason MIGHT 😉 be that the orthos (which of course aren't default XP) were made in summer 🤷‍♂️.

I am not sure if it's due to the Orthos , but I had snow using this plugin and Autoortho at Crouchlevel.  It's possible that the plugin is looking for snow in the METAR, correct me if wrong.

As I understand it, snow is placed on ground, independent if it is default textures or orthos. That's the advantage of the "X-Plane way" producing snow, namely not by replacing default or ortho textures by snow textures, but simply placing snow (whatever technique) on top of "everything" - e.g. buildings, cars, ... (but not on their roofs, windscreens, ... depending on the angle of the surface).

With this plugin, snow is created based on snow coverage data by NOAA, not from METAR. With or without the plugin, snow is generated and builds up slowly if the weather is set to precipitation and below 0°C (either manually or real weather). Above 0°C snow and ice will melt.

 

Edited January 23, 20242 yr by flying_carpet

2 hours ago, flying_carpet said:

As I understand it, snow is placed on ground, independent if it is default textures or orthos.

Yes for default textures, but orthos need to be modified to support the snow shader (unless Ortho4XP was updated accordingly lately).

54 minutes ago, Bjoern said:

Yes for default textures, but orthos need to be modified to support the snow shader (unless Ortho4XP was updated accordingly lately).

Yep.. to get snow to appear on the orthos, it needs the season maps adding. But the orthos will also change colour as well, e.g. greens become more brown