Map of the Area Modeled in This Study (IMAGE) European Geosciences Union Caption Backward-trajectory model of air that arrived at the Long Island Sound on August 16-17, 2018 . Each line represents the backward-trajectory for an air parcel arriving every three hours throughout the course of the day. The location of fires on August 9 (when most trajectories intersect the wildfire zone on the West Coast) is depicted with red triangles. Credit Rogers et al., Atmos. Chem. Phys., 2019 Usage Restrictions The source must be cited. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.