HALOS: Rings or arcs that seem to encircle the sun or moon. They are caused by the refraction of light through the ice crystals in cirrus clouds.
HAZE: Fine dry or wet dust or salt particles in the air that reduce visibility.
Halos- rings or arcs that seem to encircle the sun or moon and are the result of the refraction of light through the ice ctystals that make up cirrus clouds.
Halos Rings or arcs that encircle the sun or moon when seen through an ice crystal cloud or a sky filled with falling ice crystals. Halos are produced by refraction of light.
HALOS - Rings or arcs that seem to encircle the sun or moon. They are caused by the refraction of light through the ice crystals in cirrus clouds.
HARD FREEZE - freeze where vegetation is killed and the ground surface is frozen solid.
Halos form when light from the sun or moon is refracted by ice crystals associated with thin, high-level clouds (like cirrostratus clouds).
Also, they produce optical phenomena such as halos, coronas, and sun pillars. May be called "diamond dust". It is reported as "IC" in an observation and on the METAR. ICE FOG Fog that is composed of minute ice particles.
Halos are produced by reflection of light by ice crystals suspended in the earth's atmosphere and exhibiting prismatic coloration ranging from red inside to blue outside.
Unusual atmospheric phenomena such as sun dogs, halos, rainbows, aurora borealis, lenticular clouds, and stories about a long-term dry/cold/wet/warm spell, ...
These are the halos. Rainbows are seen as related groups of arcs, such as the primary rainbow (with red on the outside, blue on the inside), the (larger) secondary rainbow (with red on the inside), ...
Robert Greenler, Rainbows, Halos, and Glories, (1980) ISBN 0-521-38865-1
Raymond L. Lee and Alastair B. Fraser, The Rainbow Bridge: Rainbows in Art, Myth and Science, (2001) Penn. State University Press and SPIE Press ISBN 0-271-01977-8
David K.
This may include: unusual atmospheric phenomena such as sun dogs, halos, rainbows, aurora borealis, lenticular clouds, and stories about a long-term dry/cold/wet/warm spell. 2) Public educational information and activities, ...
Optical Phenomena: Sunsets, Halos, Mirages, etc.
Rainbows
Moonbows
Heavenly Shades of Nighttime Falling, It's Twilight Time
Mirages: A Primer
The Inferior Mirage: Not Just For Deserts Anymore
The Superior Mirage: Seeing Beyond
Halo! Halo! ...
Cs nebulosus as a thin featureless and uniform cloud veil producing halos; Cs fibratus fibrous and patchy fringeing with cirrus cloud sometimes; Cs undulatus in wave like fine ripples and Cc duplicatus with more than one layer.
Sundogs may appear as a coloured patch of light to the left or right of the sun, 22° distant and at the same distance above the horizon as the sun, and in ice halos.
They make up cirriform clouds, frost, and ice fog. Also, they produce optical phenomena such as halos, coronas, and sun pillars. May be called "diamond dust." It is reported as "IC" in an observation and on the METAR.
1) A current or expected nonhazardous event of general interest to the public that can usually be covered with a single message (e.g., unusual atmospheric phenomena such as sun dogs, halos, rainbows, aurora borealis, lenticular clouds, ...
PHOTOMETER Any of a number of atmospheric phenomena which appear as luminous patterns in the sky. They do not directly cause adverse weather. They include halos, coronas. rainbows, and fogbows.
The crystals falling from cirrus clouds will all have the same orientation, facilitating the creation of halos, which are the cooperative effect of many crystals (as the rainbow is of many drops).
of radiant energy similar to this, but not acting on the normal retina, such as ultraviolet and infrared radiation. Interplay between light rays and the atmosphere cause us to see the sky as blue, and can result in such phenomena as glows, halos, ...
At progressively lower angles of the sun, halos become fragmentary and light intensity noticeably decreases.
Atmospheric Optics: Phenomenia such as: Rainbows: Halos: Glories: Mirages:
Atmospheric Pressure: The pressure exerted by the atmosphere.
Atmospherics: Interference to radio and TV communications caused by electrical storms.
 See also: Light, Cloud, Air, Clouds, High
  
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