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In meteorology, an okta is a unit of measurement used to describe the amount of cloud cover at any given location such as a weather station. Sky conditions are estimated in terms of how many eighths of the sky are covered in cloud , ranging from 0 oktas (completely clear sky) through to 8 oktas (completely overcast ).
Fractus clouds, also called fractostratus or fractocumulus, [1] are small, ragged cloud fragments that are usually found under an ambient cloud base. They form or have broken off from a larger cloud, and are generally sheared by strong winds , giving them a jagged, shredded appearance.
The height above the ground or water of the base of the lowest layer of cloud below 6000 meters (20,000 feet) covering more than half the sky. [2] United Kingdom The vertical distance from the elevation of an aerodrome to the lowest part of any cloud visible from the aerodrome which is sufficient to obscure more than half of the sky. [3] United ...
A broken layer of clouds passes below a solar eclipse in Mumbai, India, on December 26, 2019. - Vijayanand Gupta/Hindustan Times/Getty Images Any thinner clouds or gaps in clouds will allow for a ...
The yellow color is due to the presence of pollutants in the smoke. Yellowish clouds caused by the presence of nitrogen dioxide are sometimes seen in urban areas with high air pollution levels. [22] Red, orange and pink clouds occur almost entirely at sunrise and sunset and are the result of the scattering of sunlight by the atmosphere.
Founded as the Air Force Logistics Museum of the West in 1982, the name of the museum was quickly changed to the McClellan Aviation Museum less than a year later. [2] [3] It was chartered by the National Museum of the United States Air Force. The McClellan Aviation Museum housed a collection of aircraft and other objects associated with the ...
In 1981, the first current building was built after a tornado destroyed the then Bradley Air Museum's previous outdoor location along Route 75 in 1979. The museum has since added a restoration hangar in 1989, a storage building in 1991, a military hangar in 1992, a 58th Bomb Wing Hangar in 2003, and a storage hangar in 2010. [8]
Weeks of unexplained drone sightings in New Jersey have left residents, politicians and public safety officials scratching their heads, prompting security concerns.