I was observing a group of men stripping the clothes off several women. The group seemed to be preparing to engage in casual sex. I saw another man wearing a yellow cap over his erected genitals, and I could see yellow liquid covering his lips and pouring out of his mouth. I was warning the people that a storm was coming and that they should leave the area. They ignored me and continued with their acts. I then looked at the horizon, and it turned black with storm clouds that were so dark that no light shone through. It looked terrifying. I warned the group again, but they ignored me. I left the area quickly for fear of the storm.