Prior to joining KING-TV, Marriott was a meteorologist for the U.S. Forest Service Northwest Mountain Weather and Avalanche Forecast Center. He provided detailed mountain weather and avalanche forecasts for Washington and Oregon to government and private agencies, as well as the public.
Marriott also worked for the University of Washington during the summers as station manager for the Blue Glacier Research Project in the Olympic Mountains. In this capacity he maintained a research facility at the 6800-foot level on Mt. Olympus and carried out research in glaciology, climatology, and meteorology. This position also occasionally involved helping with search and rescue and educational programs for Olympic National Park.
Prior to moving to Seattle in 1975, Marriott worked as a research fellow in the UCLA Department of Meteorology, conducting research on the meteorology of the upper atmosphere. Marriott continues to work as a consultant in mountain meteorology, software design for weather instruments and data collection, and avalanche planning and education.
Marriott belongs to the American Geophysical Union, the National Physics Honorary, the American Avalanche Association, and the American Meteorological Society (AMS). He holds the AMS's Seal of Approval for Broadcast Meteorology. Marriott is also Secretary of the Steering Committee for the International Snow Science Workshop, one of the leading conferences on Snow and Avalanche Technology and Mountain Weather.
Marriott has published numerous research papers in scientific journals, including Nature, Journal of Glaciology, Journal of Geoelecticity and Geomagnetism, and others. He has been a member of the Steering Committee for the International Snow Science Workshop (ISSW) since 1984 and was elected executive secretary in 2000. He is an active participant in the American Lung Association's Climb for Clean Air, during which he climbed Mt. Rainier and did live broadcasts with the group in 2002. He is also a member of the Board of the Friends of the NW Weather and Avalanche Center.
Marriott received his bachelor of science in physics and master of science in meteorology from UCLA. Subsequently, he spent three years in the graduate program at the University of Washington specializing in mountain meteorology, avalanches, and snow physics and working on research which eventually became the Northwest Mountain Weather and Avalanche Forecast Center.
Rich enjoys the outdoors where his activities include snowboarding, downhill skiing, telemark skiing, hiking and backpacking. He also enjoys reading (especially in remote places), amateur astronomy, working on computers, gardening, and watching his children grow up. He volunteers his time in the community as a speaker, auctioneer, tour guide, and emcee.