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RISMomentum and Kinetic Energy Budgets of Simulated Supercell Thunderstorms
Publisher: American Meteorological Society
Abstract: The results of numerical simulations of severe thunderstorms with rotating updrafts and supercell characteristics are analyzed to determine their sources, sinks, and transports of momentum and kinetic energy. Two simulations ...
The Role of Forcing in Cell Morphology and Evolution within Midlatitude Squall Lines
Publisher: American Meteorological Society
Abstract: This study assesses the role of mesoscale forcing on cell morphology and early evolution of midlatitude squall lines. The forcing chosen was a cold front, simulated to frontal collapse to produce a specific set of thermodynamic ...
Origin, Evolution, and Finescale Structure of the St. Valentine's Day Mesoscale Gravity Wave Observed during STORM-FEST. Part III: Gravity Wave Genesis and the Role of Evaporation
Publisher: American Meteorological Society
Abstract: On 14 February 1992, a long-lived moderate-amplitude mesoscale gravity wave formed in Kansas during the Storm-scale Operational and Research Meteorology-Fronts Experiment Systems Test (STORM-FEST). Wave formation was evident ...
The 19 April 1996 Illinois Tornado Outbreak. Part II: Cell Mergers and Associated Tornado Incidence
Publisher: American Meteorological Society
Abstract: In the 19 April 1996 Illinois tornado outbreak, cell mergers played a very important role in the convective evolution. With a large number of cells forming within a short time period, the early stages of cell organization ...
The 19 April 1996 Illinois Tornado Outbreak. Part I: Cell Evolution and Supercell Isolation
Publisher: American Meteorological Society
Abstract: In this study of the 19 April 1996 Illinois tornado outbreak, 109 cells were tracked using radar data to understand the transition of the cell configuration from a considerable number of initial cells to a small subset of ...
Vertical Motions in Precipitation Bands in Three Winter Cyclones
Publisher: American Meteorological Society
Abstract: The University of Alabama in Huntsville Mobile Integrated Profiling System 915-MHz profiler was deployed in January and February of 2004 to measure vertical air velocities in finescale precipitation bands in winter cyclones. ...
A Networked Desktop Synoptic Laboratory
Publisher: American Meteorological Society
Abstract: Over the past several years, the Department of Atmospheric Sciences at the University of Illinois has developed a computerized weather laboratory that permits interactive access to real-time data from observing sites around ...
Structure and Statistical Analysis of the Microphysical Properties of Generating Cells in the Comma Head Region of Continental Winter Cyclones
Publisher: American Meteorological Society
Abstract: his paper presents analyses of the microphysical structure of cloud-top convective generating cells at temperatures between ?10° and ?55°C across the comma head of 11 continental cyclones, using data collected by the W-band ...
The Characterization of Ice Hydrometeor Gamma Size Distributions as Volumes in N0–λ–μ Phase Space: Implications for Microphysical Process Modeling
Publisher: American Meteorological Society
Abstract: amma distributions represent particle size distributions (SDs) in mesoscale and cloud-resolving models that predict one, two, or three moments of hydrometeor species. They are characterized by intercept (N0), slope (?), ...
Vertical Velocity and Microphysical Distributions Related to Rapid Intensification in a Simulation of Hurricane Dennis (2005)
Publisher: American Meteorological Society
Abstract: 1-km Weather Research and Forecasting model simulation of Hurricane Dennis was used to identify precursors in vertical velocity and latent heating distributions to rapid intensification (RI). Although the observed structure ...