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Upslope fog

(Section 3.2.1.1.1)
  • Upslope fog is formed when air flows upwards over rising terrain and is adiabatically cooled to its saturation temperature. Upslope fog is a type of hill fog. When viewed from below it will be seen as Stratus. As one ascends into the cloud, the visibility will appear as fog. When viewed from clear air above, the observer will look down on the top surface of the cloud.

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