TY - RPRT TI - Eruption-triggered avalanche, flood, and lahar at Mount St. Helens - Effects of winter snowpack AU - R. B. Waitt AU - T.C. Pierson AU - N. S. MacLeod AU - R. J. Janda AU - B. Voight AU - R. T. Holcomb PY - 1983 DO - 10.1126/science.221.4618.1394 UR - https://pubs.usgs.gov/publication/70011213 ID - 70011213 ER -