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Use of Profiler Data for Analysis and NOWcasting of a Winter Season Extratropical Cyclone

机译：使用剖面仪数据进行冬季季节性温带气旋的分析和播出

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In the early 1990's, an experimental network of wind profilers was deployed across the central United States. Base profiler data in the form of time-height cross sections and standard pressure plan views have been available to the Weather Service Forecast Office (WSFO) St. Louis staff since late in 1991. Wind profiler information is currently run automatically by Watchdog on AFOS every three hours and can be activated manually every hour if the forecaster desires. Since the entire profiler network has not been established until recently, relatively few papers have been published utilizing profiler data. The paper will describe the evolution of a winter storm which produced between three and six inches of snow from central Oklahoma to central Illinois. Specifically, it will be shown how profiler data is used to (1) diagnose several meteorological processes during the evolution of a winter storm event and (2) aid the forecast in producing a short-term forecast or NOWcast. Features discussed will include jet streak formation, the advection of cold air through the depth of the atmosphere, conveyer belt circulations and a significant overrunning episode.

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