Can a tornado happen without clouds?

Tornadoes can occur without funnel clouds, as shown in this example from NSSL. Most likely, the pressure drop and lift in the tornado vortex was too weak to cool and condense a visible funnel; and/or the air below cloud base was too dry.

Read more

What do the clouds look like before a tornado?

A funnel cloud is usually visible as a cone-shaped or needle like protuberance from the main cloud base. Funnel clouds form most frequently in association with supercell thunderstorms, and are often, but not always, a visual precursor to tornadoes. In respect to this, why is the cloud orange? As light continues to move though the atmosphere, yellow wavelengths are scattered leaving orange wavelengths. Further scattering of orange wavelengths leaves red as the predominate color of sunlight. Therefore, near sunrise and sunset, a cloud's color is what sunlight color it receives after Rayleigh scattering.

What is the most beautiful cloud?

7 Breathtaking Natural Cloud Formations Nacreous Clouds. Often known as Mother of Pearl clouds, nacreous clouds are an extremely rare sight. Mammatus Clouds. Cirrus Kelvin-Helmholtz Wave Clouds. Lenticular Clouds. Roll Clouds. Undulatus Asperatus Clouds. Where can you find mammatus clouds? cumulonimbus anvil Mammatus usually form on the base of a cumulonimbus anvil, but they have also been sighted to form on other cloud types, such as stratocumulus, altostratus and altocumulus. Mammatus have also been observed to form on the underside of volcanic ash clouds.

Why are there sometimes no clouds in the sky?

The usual reason for the absence of clouds will be the type of pressure, with the area being under the influence of a high pressure or anticyclone. Air would be sinking slowly, rather than rising and cooling.