An Analysis of Anomalous Winter and Spring Tornado Frequency by Phase of the El Niño/Southern Oscillation, the Global Wind Oscillation, and the Madden-Julian Oscillation

Table 1

Minimum, mean, and maximum values of global atmospheric angular momentum (AAM; kg·m²·s⁻²) anomalies during the active EN and inactive LN seasons.

Seasons	Minimum	Mean	Maximum
Active EN seasons
DJF 1983	1.3	2.6	4.4
DJF 2016	0.4	1.9	4.0
MAM 1982	−1.3	0.1	1.4
MAM 1983	0.1	1.8	3.5
Inactive LN seasons
DJF 1985	−2.0	−0.9	0.1
DJF 1986	−1.1	0.1	1.3
MAM 1985	−1.0	0.1	1.1
MAM 2000	−2.7	−1.5	−0.4