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10 Cards in this Set
- Front
- Back
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Sky condition |
State of the sky in terms of such parameters as sky cover, layers and associated heights, ceiling and cloud types |
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Sky Cover |
The amount of sky which is covered by clouds or obscurations in contact with the surface |
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Layer |
Array of clouds and/or obscurations whose bases are at approximately the same level |
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Summation Layer Amount |
Categorization of the amount of sky cover at and below each reported layer |
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Ceiling |
lowest layer aloft reported as broken or overcast; or the vertical visibility into an indefinite ceiling |
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Vertical Visibility |
Subjective or instrumental evaluation of the vertical distance into a surface-based obscuration that an observer would be able to see |
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Indefinite Ceiling |
the ceiling classification applied when the reported ceiling value represents the vertical visibility upward into a surface-based obscuration |
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VV |
Vertical visibility 8/8 Summation Amount of Layer Announced “indefinite ceiling” |
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SKC/CLR |
Clear Summation Amount of Layer: 0 Announced: “Clear” (SKC), “Clear below one two thousand” (CLR) |
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FEW |
Few Summation Amount of Layer: 1/8 — 2/8 Announced: “Few clouds at ___” |
