Those lighter areas are actually dry. Meanwhile my "waterproof" jacket was completely soaked, with the rain making inroads into the next layer underneath, and every time I bent over, water ran down inside my jeans.
I'm leaving the horses where they are for now as it's not that cold. I put their hay under the meagre canopy of some small leafless trees, on lower ground, so they could eat in relative shelter.
I wasn't looking forward to doctoring Rose in the fading light and the rain, but she let me catch her after only one or two tries. She took her banamine like a champ and visibly composed herself so I could administer the antibiotic ointment into her eye. She is a very dear creature.