||below 500 feet and/or
||less than 1 mile
||500 to below 1,000 feet and/or
||1 to less than 3 miles
||1,000 to 3,000 feet and/or
||3 to 5 miles
||greater than 3,000 feet and
||greater than 5 miles
* By definition, IFR is ceiling less than 1,000 feet and/or visibility
less than 3 miles, LIFR is a sub-category of IFR (ceiling less than 500 feet and/or
visibility less than 1 mile). The Aviation Weather Center distinguishes LIFR from IFR
for the purposes of this graphic.
** By definition, VFR is ceiling greater than or equal to 1,000 feet and
visibility greater than or equal to 3 miles, MVFR is a sub-category of VFR (ceiling
1,000 - 3,000 feet and/or visibility 3 to 5 miles). The Aviation Weather Center
distinguishes MVFR from VFR for the purposes of this graphic.