Abstract: Data for 21 years (1957?77) of North Pacific rawinsondes were examined to investigate the interaction between the synoptic-scale circulation and tropical cyclones prior to, and during, the recurvature process. This study ...

Abstract: Anticyclonic left-moving supercells are observed each year in the United States, emanating both discretely and from storm splitting processes. Such thunderstorms often produce severe hail and wind gusts and, on rare occasion, ...

Abstract: or the state of Colorado, 10 years (2003?12) of 1 April?31 October cloud-to-ground (CG) lightning stroke data are mapped at 500-m spatial resolution over a 10-m spatial resolution U.S. Geological Survey (USGS) digital ...

Abstract: Just prior to 1900 UTC 25 July 2000, an 18-year-old male was fatally wounded by a lightning flash on the summit of Pikes Peak, Colorado. This case is believed to be unique in that radar and satellite data indicated that ...

Abstract: The visual, radar, and lightning characteristics of a severe thunderstorm that spawned a large F3 tornado near Almena, Kansas, on 3 June 1999 are documented. The storm is interesting in that it made a transition from a ...

Abstract: Average cloud-to-ground lightning flash density values for Florida have been calculated for the 10-yr period 1986?95. An annual mean map and monthly mean maps were constructed from a database exceeding 25 million flashes. ...