Table 4: Green River District Health Department proposed climate and health surveillance system.

HazardExposure indicator
(surveillance trigger)
Reportable health outcome

Extreme heatMax temperature greater than or equal to 95 for a minimum of 3 days  
(Heat advisory issued by National Weather Service).
Number of heat-related deaths (ICD-10: X30); number of heat stress hospitalizations and emergency department visits (ICD-9: 992, E900.0, E900.9) from May to September.

DroughtCounty declared in D2 (severe), D3 (extreme), or D4 (exceptional) drought by US Drought Monitor   
(Same).
In development.

FloodingNumber of days with precipitation over 2 inches reported by weather stations annually   
(Flood warning issued by National Weather Service).
Number of unintentional drowning-related mortalities (ICD-10: W69, W70, and X38) and flooding-related hospitalizations and emergency department visits (ICD-9: E908.2, E908.9, E910.8, and E910.9).