Turbulence has risen across the board
Measured in hours of turbulence (hr) per flight
1979
2020
0
100
200
300
400
500
466.5
546.8
152.7
195.4
70
96.1
35.5
51.8
17.7
27.4
Light or greater turbulence
Light-moderate or greater turbulence
Moderate or greater turbulence
Moderate-severe or greater turbulence
Severe or greater turbulence