wham-cam Dark Grey Clouds Dark grey clouds are a sure sign of rain, or are they? Joe Snedeker dispels this common misconception in Wham Cam. More Videos Next up in 5 Example video title will go here for this video Next up in 5 Example video title will go here for this video Dark grey clouds are a sure sign of rain, or are they? Joe Snedeker dispels this common misconception in Wham Cam.