We had orange-red snow in Greece a few days back but it was from the sand that reached Greece through the winds from Africa. It was totally cool because the clouds were orange-red and it reminded the pictures of the Mars atmosphere! Could it be something like that in Bulgaria too?


They said it was from Sahara sands but who knows ?


The days that we had rain with sand from Africa was in the previous week, so your case might be different. As you said, who knows