Simultaneous observations of aerosol and rainwater composition were performed at a remote, mid-latitude, marine, land-based site to characterize the chemistry of Northeastern Pacific cyclonic frontal air masses. The measured concentrations of both the major ions (SO4=, NO3-, H+) and trace metals (Pb, Cu, Cd, Mn, V, Cr, Ni, Zn) in the submicrometer aerosol and rainwater were very low and similar to other remote locations indicating that the Lake Ozette sampling site is not dominated by human activity during on-shore air flow. Statistical analysis indicated that experimental uncertainty was not a significant source of variability and that rainwater solute has independent influences from sea salt and a component that included NH4+, H+, and SO4=. Futher investigation of source relationships was performed using 850 mbar trajectories, principal component analysis, partial least squares regression, enrichment factors, and scavenging ratios. Using these methods we conclude that submicrometer aerosol is the main precursor of trace metals and excess sulfate in Northeastern Pacific rain. ¿ American Geophysical Union 1988