Aviation Flight Categories (AFC)
* 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. |