Rain-on-snow flood event in central Arizona

TitleRain-on-snow flood event in central Arizona
Publication TypeConference Proceedings
Year of Conference1983
AuthorsFfolliott, P. F., and Brooks K. N.
Conference Name51st Annual Western Snow Conference
Series TitleProceedings of the 51st Annual Western Snow Conference
Date PublishedApril 1983
PublisherWestern Snow Conference
Conference LocationVancouver, Washington
KeywordsArizona, Flooding, Rain-on-snow, Streamflow forecasting

To better understand the effects of rain-on-snow precipitation events and to improve streamflow forecasting, events surrounding a flood which occurred on the Salt-Verde River Basins (Arizona) in February 1980 were examined. Precipitation, temperature, lysimeter runoff, and streamflow data from the upper and lower elevational zones were analyzed. A description of the study site and the type of precipitation (rain, snow, or mixed rain and snow) which the various elevations received are given. Also, a sequence of events can be seen by the comparison of precipitation, temperature, lysimeter runoff, and streamflow, which are graphically illustrated. It was concluded that, although snowmelt augmented streamflow, rainfall was the primary cause of the flood.