Sunsets appear in a variety of colors
When the sun is high in the sky, it generally appears white because all wavelengths of visible light reach an observer's eyes with almost equal intensity.
Sunset picture was taken from our front yard.
Pictures Takeb By: Virginia (Gini) Hagerman Giannetta
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sunset"1. The phenomenon of the sun's daily disappearance below the western horizon as a result of the earth's rotation. 2. Contraction for "time of sunset," which is defined by the U.S. Naval Observatory. Compare sunrise.
SUNSET
The daily disappearance of the sun below the western horizon as a result of the earth's rotation. In the United States, it is considered as that instant when the upper edge of the sun just disappears below the sea level horizon.
Sunset - The time the sun disappears below the horizon.
Supercell - A severe thunderstorm whose updrafts and downdrafts are in near balance for several hours. Supercells often produce large hail and tornadoes.
Sunset view of Hurricane Isidore's rainbands photographed at 7,000 feet (2.1 km) ...
At sunset, a sequence of colours seen on snow-covered peaks. The term derives from the German Alpenglühn and therefore is also known as alpenglow. The true alpine glow begins when the Sun is still above the horizon.
AfternoonNoon to sunset.Arctic airA mass of very cold, dry air that usually originates over the Arctic Ocean north of Canada and Alaska.Arctic highA very cold high pressure that originates over the Arctic Ocean.
This is a primary reason for colors, such as blue skies, rainbows, and orange sunsets. When working with radars, this often refers to the more or less random changes in direction of radio energy.
temperature, precipitation, wind, sunrise and sunset times, etc.).Daily Flood PeakIn hydrologic terms, the maximum mean daily discharge occuring in a stream during a given flood event.
TWILIGHT Often called dusk, it is the evening period of waning light from the time of sunset to dark. The time of increasing light in the morning is called dawn.
Civil Twilight - The period of time before sunrise and after sunset when the sun is not more than 6° below the horizon.
Nautical Twilight - The period of time before sunrise and after sunset when the sun is not more than 12° below the horizon.
The character of the sunrise or sunset when the disk of the sun is hidden at these times by clouds or an obscuring phenomenon. Compare clear. 2.
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! ...
Why is the sky a red-orange colour at sunset and sunrise?
At sunrise and sunset, sunlight passes through far more air before reaching us.
Air mass thunderstorms typically are associated with warm, humid air in the summer months; they develop during the afternoon in response to insolation, and dissipate rather quickly after sunset.
Thunderstorms which develop after sunset. They are often associated with the strengthening of the low level jet and are most common over the Plains states.
Duration of the period from sunrise to sunset.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: diurnal, Diurnal Cycles, mean, Tides
dBZ - permalink - collapse ...
Day length: duration of the period from sunrise to sunset.
Dew-point (dew point temperature): the temperature to which air must be cooled (at constant pressure and constant water vapor content) for saturation to occur.
The time between the moment of sunset, when the sun's apparent upper edge is just at the horizon, until the center of the sun is 6¡ directly below the horizon.
Related term: twilight
CLEAR ...
twilight—The intervals of incomplete darkness following sunset and preceding sunrise.
A sequence of colours seen on snow-covered mountaintops at sunset.
Altitude
Height expressed as the distance above a reference point, which is normally sea level or ground level.
Twilight
An intermediate period of illumination of the sky before sunrise and after sunset; there are three definitions of twilight: civil, nautical, and astronomical.
Typhoon
Maximum wind speed of 64 knots or more.
Twilight The time immediately before sunrise and after sunset when the sky remain illuminated.
Typhoon A hurricane that forms in the western Pacific Ocean.
U ...
Noctilucent clouds Wavy, thin clouds resembling cirrus, but usually bluish-white or silvery; best seen at high latitudes just before sunrise or just after sunset.
Sun Pillar - a luminous streak of white or slightly reddened light extending vertically above and below the sun, most frequently observed near sunrise or sunset ...
In simple terms twilight is the term used to describe the period of incomplete darkness that occurs after sunset and before sunrise. It is derived from Saxon or Middle English terms, which imply that it occurs twice daily.
PHOTOGENIC - Any scene which presents a good photo opportunity. In storm chasing, a tornado in high contrast with a sunset in the background is a photogenic example.
or other type of synoptic-scale forcing mechanism. Air mass thunderstorms typically are associated with warm, humid air in the summer months; they develop during the afternoon in response to insolation, and dissipate rather quickly after sunset.
"If you have ever marvelled at a spectacular sunset, 'Weather eye' is for you.
Individual thunderstorms are typically of the type sometimes referred to as air-mass thunderstorms: they are small, short-lived, very rarely severe, and they almost always dissipate near or just after sunset.
Nocturnal ThunderstormsThunderstorms which develop after sunset. They are often associated with the strengthening of the low level jet and are most common over the Plains states.
TwilightThe average time of civil twilight, which is the time between civil dawn and sunrise in the morning, and between sunset and civil dusk in the evening.TwisterIn the United States, a colloquial term for a tornado.
 See also: Light, Air, Weather, Meteor, Cloud
  
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