The color of a horse has absolutely nothing to do with its ability to run in various weather conditions.....
because gray clouds roll in (they are gray because they are full of rain)
passing team has the advantage
There is no best rain footwear for running. If it is raining then you most likely should not be running. Running in the rain could cause an injury which is not good.
It turns grey because they get denser and heavier.
It is wise to rein in the horses when you get caught out in the rain.
rain cloud
Horses can be there, but they are not native to the rainforest.
Cumulonimbus clouds
Rain rot is a fungus that grows on a horses back due to wet weather, like rain!
no
A gray raincloud with rain and snow pouring from it
Nimbus clouds are dark gray cloud bearing rain. So, yes.