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Verification of Convection-Allowing WRF Model Forecasts of the Planetary Boundary Layer Using Sounding Observations
Publisher: American Meteorological Society
Abstract: his study evaluates forecasts of thermodynamic variables from five convection-allowing configurations of the Weather Research and Forecasting Model (WRF) with the Advanced Research core (WRF-ARW). The forecasts vary only ...
A Method for Calibrating Deterministic Forecasts of Rare Events
Publisher: American Meteorological Society
Abstract: onvection-allowing models offer forecasters unique insight into convective hazards relative to numerical models using parameterized convection. However, methods to best characterize the uncertainty of guidance derived from ...
Diagnosing the Conditional Probability of Tornado Damage Rating Using Environmental and Radar Attributes
Publisher: American Meteorological Society
Abstract: adar-identified convective modes, peak low-level rotational velocities, and near-storm environmental data were assigned to a sample of tornadoes reported in the contiguous United States during 2009?13. The tornado segment ...
Forecasting Tornado Pathlengths Using a Three-Dimensional Object Identification Algorithm Applied to Convection-Allowing Forecasts
Publisher: American Meteorological Society
Abstract: three-dimensional (in space and time) object identification algorithm is applied to high-resolution forecasts of hourly maximum updraft helicity (UH)?a diagnostic that identifies simulated rotating storms?with the goal of ...
SHARPpy: An Open Source Sounding Analysis Toolkit for the Atmospheric Sciences
Publisher: American Meteorological Society
Abstract: ith a variety of programming languages and data formats available, widespread adoption of computing standards by the atmospheric science community is often difficult to achieve. SHARPpy, or the Sounding and Hodograph ...
Tornado Pathlength Forecasts from 2010 to 2011 Using Ensemble Updraft Helicity
Publisher: American Meteorological Society
Abstract: xamining forecasts from the Storm Scale Ensemble Forecast (SSEF) system run by the Center for Analysis and Prediction of Storms for the 2010 NOAA/Hazardous Weather Testbed Spring Forecasting Experiment, recent research ...
Tornado Damage Rating Probabilities Derived from WSR-88D Data
Publisher: American Meteorological Society
Abstract: AbstractPrevious work with observations from the NEXRAD (WSR-88D) network in the United States has shown that the probability of damage from a tornado, as represented by EF-scale ratings, increases as low-level rotational ...
Meteorological Overview of the Devastating 27 April 2011 Tornado Outbreak
Publisher: American Meteorological Society
Abstract: etrics, the tornado outbreak on 27 April 2011 was the most significant tornado outbreak since 1950, exceeding the super outbreak of 3?4 April 1974. The number of tornadoes over a 24-h period (midnight to midnight) was 199; ...
A Feasibility Study for Probabilistic Convection Initiation Forecasts Based on Explicit Numerical Guidance
Publisher: American Meteorological Society
Abstract: Spring Forecasting Experiment in the NOAA Hazardous Weather Testbed (HWT) featured a significant component on convection initiation (CI). As in previous HWT experiments, the CI study was a collaborative effort between ...