I had a craving to make a big print from a big file this morning so I went looking for IQ180 files. Under ideal conditions the Teton range would be visible in the background but we got socked in by clouds from the storm system in the area that morning. However as the morning went on I noticed very subtle layers to the clouds that covered the sky. Curious to see if my camera could pick it up I made this image; turns out it could.
Storm Blue - Alpa STC, IQ180, 32 HR, ~f/11, 1s, ISO 35