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Finescale Spiral Band Features within a Numerical Simulation of Hurricane Opal (1995)
Publisher: American Meteorological Society
Abstract: One of the most recognizable features associated with a well-organized tropical system are spiral rainbands. These quasi-stationary rainbands often extend hundreds of kilometers from the storm center and have been well ...
A Dual-Polarization-Radar-Based Assessment of the 8 May 2003 Oklahoma City Area Tornadic Supercell
Publisher: American Meteorological Society
Abstract: On 8 May 2003, a tornadic supercell tracked through portions of the Oklahoma City, Oklahoma, metropolitan area and produced violent damage along portions of its path. This storm passed through the dense in situ radar network ...
Sensitivity of Dryline Convection Forecasts to Upstream Forecast Errors for Two Weakly Forced MPEX Cases
Publisher: American Meteorological Society
Abstract: he sensitivity of convective forecasts along the Texas dryline to upstream forecast fields at earlier lead times is evaluated for two consecutive days (27?28 May) characterized by no clear synoptic forcing for convection ...
Empirical Localization Functions for Ensemble Kalman Filter Data Assimilation in Regions with and without Precipitation
Publisher: American Meteorological Society
Abstract: or ensemble-based data assimilation, localization is used to limit the impact of observations on physically distant state variables to reduce spurious error correlations caused by limited ensemble size. Traditionally, the ...
A Comparison of Neural-Network and Surrogate-Severe Probabilistic Convective Hazard Guidance Derived from a Convection-Allowing Model
Publisher: American Meteorological Society
A Simple Model for the Anomalous Counterclockwise Turning of the Surface Wind with Time over the Great Plains of the United States
Publisher: American Meteorological Society
Abstract: AbstractA recent study found that surface hodographs over the Great Plains of the United States turn in a counterclockwise direction with time. This observed turning is opposite of the clockwise turning observed (and ...
Displacement Error Characteristics of 500-hPa Cutoff Lows in Operational GFS Forecasts
Publisher: American Meteorological Society
NCAR’s Real-Time Convection-Allowing Ensemble Project
Publisher: American Meteorological Society
Abstract: AbstractBeginning 7 April 2015, scientists at the U.S. National Center for Atmospheric Research (NCAR) began producing daily, real-time, experimental, 10-member ensemble forecasts with 3-km horizontal grid spacing across ...
Impacts of Targeted AERI and Doppler Lidar Wind Retrievals on Short-Term Forecasts of the Initiation and Early Evolution of Thunderstorms
Publisher: American Meteorological Society
Abstract: AbstractThe ability of Atmospheric Emitted Radiance Interferometer (AERI) and Doppler lidar (DL) wind profile observations to impact short-term forecasts of convection is explored by assimilating retrievals into a partially ...