Composites of Heavy Rain Producing Elevated Thunderstorms in the Central United States

Figure 18

Conceptual model of heavy rainfall events from elevated convection, based upon those parameters with larger mean signals and smaller interquartile ranges. The star marks the location where the heavy rainfall is anticipated; the jagged blue line represents the 500 hPa ridge axis. Enhanced moisture is highlighted by the solid (green) oval, a proxy for lifting (250 hPa divergence) is shown with the heavy dashed (purple) oval, and the instability ( Index) is shown with the fine dashed (red) oval.