Table 1.

Comparison of the SRRF against multiple environmental variables used to determine tornado potential. The 95 % bootstrapped confidence intervals (CI) of each verification score are shown. The best score for each parameter is shown in bold

Name	AUC CI	Threshold CI	PSS CI	POD CI	POFD CI	FAR CI
SRRF	0.65, 0.66	0.23, 0.25	0.21, 0.23	0.51, 0.58	0.29, 0.36	0.65, 0.67
CAPE	0.46, 0.52	2463.39, 2985.83	0.08, 0.10	0.22, 0.29	0.14, 0.19	0.55, 0.67
BWD	0.46, 0.52	17.31, 19.58	0.10, 0.13	0.69, 0.80	0.59, 0.67	0.66, 0.74
SRH	0.44, 0.50	139.89, 239.47	0.04, 0.06	0.47, 0.67	0.44, 0.62	0.63, 0.76
CIN	0.53, 0.60	−9.04, −4.63	0.16, 0.19	0.34, 0.44	0.17, 0.26	0.57, 0.65
STP	0.44, 0.50	0.83, 1.78	0.05, 0.07	0.27, 0.39	0.22, 0.33	0.61, 0.72
EHI	0.48, 0.55	1.77, 2.28	0.11, 0.15	0.47, 0.57	0.35, 0.44	0.64, 0.72