Table 3.

Comparing Specificity, Sensitivity, Accuracy, Area Under Curve (AUC), and Matthews Correlation Coefficient (MCC) between Hybrid, Multivariate, and Prior-day Nowcast models for the 15 pilot beaches.

Model	Specificity	Sensitivity	Precision	Accuracy	AUC	MCC
2017 Hybrid	0.980	0.112	0.273	0.926	0.753	0.142
2017 Multivariate	0.971	0.060	0.125	0.912	0.738	0.044
2016 Prior-day	0.988	0.037	0.167	0.930	0.644	0.052
2015 Prior-day	0.984	0.032	0.176	0.892	0.655	0.036