Condensation Funnel - A funnel-shaped cloud associated with rotation and consisting of condensed water droplets (as opposed to smoke, dust, debris, etc.). Compare with debris cloud.
CONDENSATION FUNNEL A funnel-shaped cloud consisting of condensed water drops that has possible rotation.
CONDENSATION NUCLEI A particle upon which condensation of water vapor occurs. It may be either in a solid or liquid state.
CONDENSATION FUNNEL - The visible pendant cloud of a tornado. This is caused by air pressure and wind speed changes associated with vortex allowing the vapor in the air to condense into water droplets.
A condensation funnel extending from the base of a towering cumulus or Cb, associated with a rotating column of air that is not in contact with the ground (and hence different from a tornado).
A condensation funnel extending from the base of a towering cumulus or Cb, associated with a rotating column of air that is not in contact with the ground (and hence different from a tornado).
A well defined condensation funnel forms at the western edge of this supercell thunderstorm. The rear flank downdraft has carved out a marked clear slot on the southern periphery of this tornado.
Debris cloudA rotating "cloud" of dust or debris, near or on the ground, often appearing beneath a condensation funnel and surrounding the base of a tornado.Dense fogA fog in which the visibility is less than one-quarter mile.
Xenia, OH on 3 April 1974, which was rated F5 but appeared only as a series of suction vortices without a central condensation funnel).
Rolled Filled DamIn hydrologic terms, an embankment dam of earth or rock in which the material is placed in layers and compacted by using rollers or rolling equipmentRope(Also "Rope Funnel") - a narrow, often contorted condensation funnel ...
A rotating "cloud" of dust or debris, near or on the ground, often appearing beneath a condensation funnel and surrounding the base of a tornado.
Wedge (or Wedge Tornado) Slang for a large tornado with a condensation funnel that is at least as wide (horizontally) at the ground as it is tall (vertically) from the ground to cloud base.
A condensation funnel is a tornado, not a funnel cloud, if either a) it is in contact with the ground or b) a debris cloud or dust whirl is visible beneath it. Funnel clouds have no detectable debris or damage at ground level.
A condensation funnel does not need to reach to the ground for a tornado to be present; a debris cloud beneath a thunderstorm is all that is needed to confirm the presence of a tornado, even in the total absence of a condensation funnel.
Multiple Vortex TornadoA tornado in which two or more condensation funnels or debris clouds are present at the same time, often rotating about a common center or about each other. Multiple-vortex tornadoes can be especially damaging.
 See also: Tornado, Storm, Condensation, Thunder, Thunderstorm
  
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