Recent advances in wind profiler technology at the Environmental Technology Laboratory (ETL) NOAA have created the capability to monitor the altitude of the snow level in storms approaching and striking the Sierra Nevada mountains. Profilers deployed along the coast and in the western Sierra foothills as part of the PACJET (Pacific Landfalling Jets Experiment) have provided data that is being used to test this concept. Initial impressions are that the coastal observations of snow level can provide information about what the snow level will be 4 to 10 hours later near Donner Summit.
During the 2000-2001 winter season the California Department of Transportation (CalTrans) spent $13 Million dollars on snow removal for the I-80 region of California. An incorrect forecast of snow level (either too high or too low) causes a great loss in money of CalTrans through such things as overtime pay, improper staffing, not enough equipment in the proper road regions. With more accurate timing of event as well as more accurate snow levels CalTrans will be more effective in the amount of staffing they need, where to concentrate their efforts and what resources to use.
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