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The Discrimination between Tornadic and Nontornadic Supercell Environments: A Forecasting Challenge in the Southern United States
Publisher: American Meteorological Society
Abstract: Recent results from storm-scale modeling experiments have suggested that the strength of the 3?7-km storm-relative wind plays a very important role in determining whether or not a storm that already exhibits midlevel updraft ...
Effective Storm-Relative Helicity and Bulk Shear in Supercell Thunderstorm Environments
Publisher: American Meteorological Society
Abstract: A sample of 1185 Rapid Update Cycle (RUC) model analysis (0 h) proximity soundings, within 40 km and 30 min of radar-identified discrete storms, was categorized by several storm types: significantly tornadic supercells (F2 ...
A Proposed Revision to the Definition of “Derecho”
Publisher: American Meteorological Society
Abstract: he word ?derecho? was first used by Gustavus Hinrichs in 1888 to distinguish the widespread damaging windstorms that occurred on occasion over the mid?Mississippi Valley region of the United States from damaging winds ...
Measured Severe Convective Wind Climatology and Associated Convective Modes of Thunderstorms in the Contiguous United States, 2003–09
Publisher: American Meteorological Society
Abstract: severe thunderstorm wind gust climatology spanning 2003?09 for the contiguous United States is developed using measured Automated Surface Observing System (ASOS) and Automated Weather Observing System (AWOS) wind gusts. ...
Structure and Motion of Severe-Wind-Producing Mesoscale Convective Systems and Derechos in Relation to the Mean Wind
Publisher: American Meteorological Society
Abstract: he goal of this study is to document differences in the convective structure and motion of long-track, severe-wind-producing MCSs from short-track severe-wind-producing MCSs in relation to the mean wind. An ancillary goal ...