Approximaely nine months of bottom pressure data obtained from 10 sites on the Labrador Shelf are used to determine the amplitudes and origins of the three gravest coastal-trapped wave modes. Using geostrophic wind data, the three waves driven by local wind forcing on the shelf are found to account for about 30% of bottom pressure variability in the spectral bands between 600 and 60 hours; Cape Chidley at the northern tip of the shelf is identified as a geographical origin. The amplitudes of the coastal-trapped waves that are forced remotely from the shelf are also determined using all observations and the mode fitting technique of Haines et al. (this issue). The technique is here extended to determine the statistical relations between modal amplitude and forcing by remote wind stress and Hudson Bay atmospheric pressure; the latter can drive an oscillatory mass flux through Hudson Strait leading to coastal-trapped wave generation. At low frequencies (600-hour period) modes 1 and 2 are found to be of comparable magnitude, highly coherent and out of phase: results suggest that these modes originate from the scattering of a mode 1 wave, incident on an abrupt decrease in shelf depth at the northern tip of the shelf. The Kelvin wave is also found to be of comparable magnitude although incoherent with these modes, and the models so determined is shown to provide an excellent fit to the observations. At higher frequencies (86-hour period) modes 1 and 2 and the Kelvin wave are found to have amplitudes in the ratio (1:1/5:1/2) that are consistent with theoretical expectations for wave generation by atmospheric pressure forcing over the Hudson Bay/Strait system. The model fit to the data is poorer than at low frequencies, notably at the southernmost sites across Hamilton Bank. Wave scattering by the abrupt saddles and banks on the shelf is thought to be severe at high frequencies and responsible for the poorer fit. ¿ American Geophysical Union 1991