This study examines the relationship between storm track and precipitation over the Intermountain West. Storm pathways at 850, 700 and 500 mb are identified using the 6-hourly, 1.5 degree ECMWF ERA-Interim reanalysis dataset. NRCS SNOTEL station precipitation data provide montane precipitation data over the Intermountain West. Primarily used for water-supply forecasting, SNOTEL stations provide daily precipitation measurements throughout the Western United States.
Precipitation patterns associated with different synoptic patterns such as openwave troughs, closed lows, or Nevada Cyclones will be identified. In addition, precipitation climatologies for specific locations and ranges will be described.