Sky Conditions

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Ever wonder what the "Sky Conditions" are when the weatherman says partly to mostly cloudy just exactly what that means? In a never-ending effort to keep the Skywarn community abreast of what's what in weather, here's what they're talking about.

Sky Condition Cloud Coverage
Clear / Sunny 0/8 - - None
Mostly Clear / Mostly Sunny 1/8 to 2/8
Partly Cloudy / Partly Sunny 3/8 to 4/8
Mostly Cloudy / Considerable Cloudiness 5/8 to 7/8
Cloudy / Overcast 8/8 - -Total
Fair (mainly for night) Less than 4/10 opaque clouds
  • Courtesy of the National Weather Service