These flight rules are not a substitute for the offical FAA approved weather briefing.
Flight Rules Category Definitions:
| Category |
Ceiling |
|
Visibility |
Low Instrument Flight Rules
LIFR* (red sky symbol) |
below 500 feet AGL |
and/or |
less than 1 mile |
Instrument Flight Rules
IFR (orange sky symbol) |
500 to below 1,000 feet AGL |
and/or |
1 mile to less than 3 miles |
Marginal Visual Flight Rules
MVFR (yellow 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 |
* IFR is ceiling less than 1,000 feet AGL and/or visibility less than 3 miles while LIFR is a sub-category of IFR.
+ VFR is ceiling greater than or equal to 1,000 feet AGL and visibility greater than or equal to 3 miles while MVFR is a sub-category of VFR. |
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