“Red sky at morning, sailors take warning; Red sky at night, sailors’ delight.” This rhyme is an ancient rule of thumb for for weather forecasting, dating back over 2,000 years, based on the reddish glow of the morning or evening sky, caused by haze or clouds related to storms in the region. My grandmother would substitute the word fisherman instead of sailors and shepherds was one of the earliest phases used.
Well the red sunrise may not have brought a storm but it sure brought some frigid temperatures so the shepherd had better found shelter for his flock!
Red Sky Warning