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The Impact of Writing Area Forecast Discussions on Student Forecaster Performance
Publisher: American Meteorological Society
Abstract: A brief study is provided on the forecast performance of students who write a mock area forecast discussion (AFD) on a weekly basis. Student performance was tracked for one semester (11 weeks) during the University of ...
Formation of a Sharp Snow Gradient in a Midwestern Heavy Snow Event
Publisher: American Meteorological Society
Abstract: A case study of the 13?14 March 1999 heavy snow event across southern Missouri and neighboring states is presented. Of the many features that made this storm notable, the very sharp gradient on the northern periphery of ...
Mesoscale Evolution of a Continental Occluded Cyclone
Publisher: American Meteorological Society
Abstract: A diagnostic study of a continental occluding extratropical cyclone (ETC) during 1?2 November 1992 is presented using initializations from the Mesoscale Atmospheric Prediction System (MAPS), a hybrid sigma?isentropic ...
The Application of a Simple Method for the Verification of Weather Forecasts and Seasonal Variations in Forecast Accuracy
Publisher: American Meteorological Society
Abstract: The evaluation of weather forecast accuracy has always been a difficult subject to address for many reasons. In this study, a simple semiobjective method is used to examine the accuracy of zone forecasts issued by the ...
The Role of Sublimational Cooling in a Late-Season Midwestern Snow Event
Publisher: American Meteorological Society
Abstract: Analysis is provided of a surprise late-season snow event over eastern Missouri and western Illinois. While snow totals failed to exceed 15 cm (6 in.) at any single location, the system was noteworthy because of the poor ...
A Climatology of Thundersnow Events over the Contiguous United States
Publisher: American Meteorological Society
Abstract: A ?climatology? (climatological description of spatial, temporal, and synoptic characteristics) of snow events with thunder is presented for the contiguous United States. Based upon 30 yr of 3-hourly reports from 204 ...
A Case Study of Severe Winter Convection in the Midwest
Publisher: American Meteorological Society
Abstract: Between 2100 UTC 11 February 2003 and 0200 UTC 12 February 2003, a line of thunderstorms passed swiftly through parts of eastern Iowa and into north-central Illinois. Although this storm somewhat resembled a warm season, ...
Calculated Height Tendencies in Two Southern Hemisphere Blocking and Cyclone Events: The Contribution of Diabatic Heating to Block Intensification
Publisher: American Meteorological Society
Abstract: The Zwack?Okossi vorticity tendency equation was used to calculate 500-hPa height tendencies in two intensifying Southern Hemisphere blocking events. The National Centers for Environmental Prediction?National Center for ...