Abstract: Critical performance ratio (CPR) expressions for the eight conditional probabilities associated with the 2 ? 2 contingency table of outcomes for binary (dichotomous ?yes? or ?no?) forecasts are derived. Two are shown to ...

Abstract: A fair comparison of quantitative precipitation forecast (QPF) products from multiple forecast sources using performance metrics based on a 2 ? 2 contingency table with assessment of statistical significance of differences ...

Abstract: A diagnostic study is conducted of the kinematics and evolution of upper-level jet streaks representative of three (of the four) phases in the Shapiro conceptual model of a jet streak progressing through a synoptic-scale ...

Abstract: This article discusses the feedbacks between soil moisture and precipitation during the early stages of the South American monsoon. The system achieves maximum precipitation over the southern Amazon basin and the Brazilian ...

Abstract: AbstractTraditional ensemble probabilities are computed based on the number of members that exceed a threshold at a given point divided by the total number of members. This approach has been employed for many years in ...

Abstract: The Weather Research and Forecasting (WRF) Developmental Testbed Center (DTC) was formed to promote exchanges between the development and operational communities in the field of Numerical Weather Prediction (NWP). The WRF ...

Abstract: he WMO WWRP project FROST-2014 (FROST - Forecast and Research in the Olympic Sochi Testbed) was targeted at the advancement and demonstration of state-of-the art nowcasting and short-range forecasting systems for winter ...

Abstract: AbstractOne primary goal of annual Spring Forecasting Experiments (SFEs), which are coorganized by NOAA?s National Severe Storms Laboratory and Storm Prediction Center and conducted in the National Oceanic and Atmospheric ...