A 5 by 5 matrix of pixels around the MOBY site is extracted from GOES visible images. The GOES visible images are gray scale and the pixels values range from 0 (black) to 255 (white). High pixel values indicate the presence of clouds. The first graph shows only the center pixel value, which is directly over the MOBY site. The second graph shows all 25 pixel values. No adjustments have been made to the pixel values for seasonal changes in lighting conditions.