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East Central Illinois Weather - Sample Blank Page
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Visible Satellite Image Animation


Visible Image - This image is the equivalent of taking a black and white photo of the earth. The bright areas show where the sun is being reflected back into space as a result of clouds or snow cover. Clouds and snow show up white. The thicker the cloud, the brighter the color. Land surfaces show up as gray and water surfaces nearly black. The major limitation to visible imagery is that it is only valid during daylight.