This dataset provides raw wave probe data for a series of experiments conducted in the Queen’s Landslide Flume using water flowing down a thirty-degree slope to generate impulse waves. A total of 41 tests were completed using four source volumes that increased incrementally from 0.1-0.4 m3 in water depths (relative to z = 0 m at the base of the flume) ranging from 0.15-0.65 m in increments of 0.05 m.