National Environmental Sensor Station Map
An Environmental Sensor Station (ESS) is a site measuring atmospheric, pavement and/or water level conditions. Many state transportation agencies deploy ESS as field components of Road Weather Information Systems (RWIS). As shown on the map, there are over 2,400 ESS owned by state transportation agencies. Most of these stations are part of RWIS and used to support road maintenance activities. The other environmental sensor stations are deployed for various applications including flood monitoring and aviation.
To share information on ESS in your state, contact Weather Feedback at WeatherFeedback@dot.gov.