Nubes de sal
Does it have a hidden meaning (nor nubes, nor sal in the dictionary doesn't have such phrase) or as I guess it is just a poetic expression? Gracias
3 Answers
From various google sites I think that the meaning is literal and not figurative.
See the picture at this site:

Out of context, it's just "salt clouds" to me.
Clouds of salt. I've never heard this as an idiom, so I'm guessing it's just as you thought, poetic expression. Of course having the context would tell you for certain.