Descending reflectivity core
Videos
A descending reflectivity core, sometimes referred to as a blob, is a meteorological phenomenon observed in supercell thunderstorms, characterized by a localized, small-scale area of enhanced radar re
Doppler On Wheels (DOW) radar. Used for micro-scale and near-surface based analysis of the atmosphere
The May 16, 1977 Shamrock, Texas tornado, which had an observed DRC associated with its formation.
Tornadogenesis
Videos
Tornadogenesis is the process by which a tornado forms. There are many types of tornadoes, varying in methods of formation. Despite ongoing scientific study and high-profile research projects such as
A sequence of images showing the birth of a supercellular tornado. First, the rain-free cloud base lowers as a rotating wall cloud. This lowering concentrates into a funnel cloud, which continues descending simultaneously as a circulation builds near the surface, kicking up dust and other debris. Finally, the visible funnel extends to the ground, and the tornado begins causing major damage.
Tornadogenesis occurring in Falcon, Colorado. Note the faint dust swirl beneath the funnel cloud.