Coordinate input
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| Category | Ceiling | Visibility | |
|---|---|---|---|
| Low Instrument Flight Rules LIFR* (magenta sky symbol) |
below 500 feet AGL | and/or | less than 1 mile |
| Instrument Flight Rules IFR (red sky symbol) |
500 to below 1,000 feet AGL | and/or | 1 mile to less than 3 miles |
| Marginal Visual Flight Rules MVFR (blue sky symbol) |
1,000 to 3,000 feet AGL | and/or | 3 to 5 miles |
| Visual Flight Rules VFR+ (green sky symbol) |
greater than 3,000 feet AGL | and | greater than 5 miles |
| *By definition, IFR is ceiling less
than 1,000 feet AGL and/or visibility less
than 3 miles while LIFR is a sub-category of IFR. +By definition, VFR is ceiling greater than or equal to 3,000 feet AGL and visibility greater than or equal to 5 miles while MVFR is a sub-category of VFR. |
|||
| Symbol | Description |
|---|---|
| Cloud information not reported | |
| Clear sky, reported by automated stations | |
| Sky clear, reported by human observer | |
| Few clouds, 1-2/8 | |
| Scattered clouds, 3-4/8 | |
| Broken clouds, 5-7/8 | |
| Overcast, 8/8 (i.e. full cloud coverage) | |
| The sky is obscured which is the case when a METAR reports vertical visibility and no cloud information |
Note: CAVOK and NSC are mapped to SKC (sky clear).
Briefing
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