Frost point The highest temperature at which atmospheric moisture will sublimate in the form of hoarfrost on a cooled surface. It is analogous to the dew point.
Hoarfrost A deposit of interlocking ice crystals (hoar crystals) formed by direct sublimation on objects, usually those of small diameter freely exposed to the air, such as tree branches, plant stems and leaf edges, wires, poles, etc.
frost"1. The fuzzy layer of ice crystals on a cold object, such as a window or bridge, that forms by direct deposition of water vapor to solid ice. 2.
Frost point
When the dew-point falls below freezing it is called the frost point.
Wet-bulb temperature
In simple terms, the lowest temperature to which air can be cooled by evaporating water into it.
Frost: The deposition of ice crystals on a surface directly from the water vapour in the atmosphere. The process is similar to dew formation except that the temperature of the object must be below freezing, the frost point.
Frost Advisory- Issued during the growing season when widespread frost formation is expected over an extensive area. Surface temperatures are usually in the mid 30s Fahrenheit.
Frostbite - the freezing or local effect of partial freezing of some part of the body ...
frost: water that has condensed at a temperature below the freezing point, thus has turned to
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Frost
Deposits of white ice crystals or frozen dew drops on objects on or near the ground. Formed when the surface temperature falls below freezing (0°).
Fujita Scale ...
FROST: The covering of ice that is formed on exposed surfaces whose temperature falls below freezing.
frost: 1) a cover of ice crystals produced when atmospheric water vapor is deposited directly on a surface when the temperature is below freezing, 2) the condition that exists when the temperature of the earth's surface and earth-bound objects ...
Frost- the formation of thin ice crystals on the ground or other surfaces; frost develops under conditions similar to those of dew, except in temperature of the earth's surface and earthbound objects fall below thirty-two degrees Fahrenheit.
FROST The covering of ice crystals that forms by direct sublimation on exposed surfaces whose temperature is below freezing.
Frost - Water vapour which deposits directly as a solid on a surface colder than the surrounding air and which has a temperature below freezing. It is not frozen dew. A Killing Frost is a frost severe enough to end the growing season.
FROST - The formation of thin ice crystals on the ground or other surfaces in the form of scales, needles, feathers, or fans. Frost develops under conditions similar to dew, except the temperatures are colder.
Frost Damage
Damage to vegetation occurring when the water that is part of the cell structure of the plant solidifies, bursting cells' walls and deteriorating the plant materials.
Frost point See Dew point.
Frozen dew The transformation of liquid dew into tiny beads of ice when the air temperature drops below freezing.
Frost
(Abbrev. FRST) - Frost describes the formation of thin ice crystals on the ground or other surfaces in the form of scales, needles, feathers, or fans.
Frost Ice crystals that are formed by deposition of water vapor on a relatively cold surface.
Frost point The temperature to which air must be cooled at constant pressure to achieve saturation at or below 0·C (32 ·F).
Frost - Occurs when the temperature falls to 0°C or below (See White Frost) ...
frost (also hoarfrost)—Ice crystal deposits formed by sublimation when temperature and dew point are below freezing.
funnel cloud—A tornado cloud or vortex cloud extending downward from the parent cloud but not reaching the ground.
Frost Heaving "Frost heaving" is the lifting of a surface by the internal action of frost. It generally occurs as a result of freeze-thaw cycles.
Frost Water condensation occurring on surfaces below freezing. Condensing water turns to ice.
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HOARFROST
Another name for frost. A deposit of hoarfrost occurs when air with a dew point below freezing is brought to saturation by cooling.
Frost is designated as light, heavy, or killing. LIGHT. Signifies one which has no destructive effect to tender plants and vines. HEAVY. A copious deposit but one which does not kill the staple products of the locality.
Frost: Deposit of ice on the surface when the air temperature gets in contact with it below the water freezing point (0ºC).
FROST: Ice crystals produced from water vapor that has frozen on a surface at or below 32ºF/0ºC.
FROST/FREEZE WARNING: Below-freezing temperatures are expected during the growing season and may cause significant damage to plants and crops.
Frost- Ice crystals that form on grass and other objects when the temperature and dew point fall below freezing.
Fujita Scale- A scale for estimating damage caused by the winds of a tornado, developed by Theodore Fujita.
Frostbite - It happens when you have excessive exposure to extremely cold weather. It usually affects the toes, fingers, ears, and tip of the nose.
Frostbite: human tissue damage caused by exposure to intense cold.
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Geostrophic wind: a wind that is affected by coriolis force, blows parallel to isobars and whose strength is related to the pressure gradient (i.e., spacing of the isobars).
Hoarfrost(6)
Fernlike crystals of ice that form by deposition of water vapor on twigs, tree branches, and other vegetation.
Homosphere(6) ...
Permafrost - A soil layer below the surface of tundra regions that remains frozen permanently.
15 FROSTED EARTH WEATHER SITE:
Various links and weather services/information etc., and details of books written by Ian Currie, the author of this web site.
Frost flower
[edit] References
^ Isbell, D.: Needle Ice on Mt. Osceola, EPOD of July 10, 2005. URL last accessed 2007-12-07.
^ Pidwirny, M.: Fundamentals of Physical Geography, 2nd ed., section 10(ag), Periglacial Processes and Landforms.
permafrost Perennially frozen ground that occurs wherever the temperature remains below 0 degrees C for several years. phenology The study of periodic biological phenomena with relation to climate, particularly seasonal changes.
Pingo A large frost mound of more than one-year duration.
Piping The progressive development of internal erosion by seepage, appearing downstream as a hole or seam discharging water that contains soil particles.
Climatic elements include precipitation, temperature, humidity, sunshine and wind velocity and phenomena such as fog, frost, and hail storms.
At temperatures below about-20°F, ice particles or droxtals may be formed in the air producing a type of ice fog known as frost smoke.
Use of the term is usually restricted to advective situations or to occasions when wind or other conditions prevent frost.
When this temperature is below 0°C, it is sometimes called the frost point. Dew-point apparatus Same as dew-point hygrometer.
Ice Fog(Also called ice-crystal fog, frozen fog, frost fog, frost flakes, air hoar, rime fog, pogonip.) A type of fog, composed of suspended particles of ice; partly ice crystals 20 to 100 micron in diameter, ...
Currently, the most common measure of this period, “the average length of growing season,' is defined as the number of days between the average dates of the last killing frost (see frost) in spring and the first killing frost of autumn.
and on the earth's surface in forms such as hoarfrost, rime, glaze, sea ice, glacier ice, ground ice, frazil, anchor ice, etc.
When the dew point falls below freezing it is called the frost point.diffuse insolationThe solar radiation that is scattered or reflected by atmospheric components (e.g., clouds) to the earth's surface.
The outline of the sun may show dimly as through frosted glass. It often merges gradually into cirrostratus. As with cirrostratus, it often is part of a cloud shield associated with a front.
It is also known as the Absolute Temperature Scale.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Freezing Level, Frost, Frozen Dew, FRST, Melting Point, Permafrost
Also listed in ...
DEWPOINT TEMPERATURE: The temperature to which a given parcel of air must be cooled at constant pressure and constant water vapor content in order for saturation to occur. Any further cooling usually results in the formation of dew or frost.
of that air parcel with water vapor to occur with respect to a liquid water surface. Dewpoint can be measured by a dewpoint hygrometer or indirectly with a psychrometer. The units for dewpoint are the same for air temperature. Compare with frost ...
around the sun (or moon) when viewed through altostratus, but is a common feature associated with cirrostratus clouds. In fact, the sun (or moon) is only vaguely visible through altostratus clouds and appears as if it were shining through frosted ...
 See also: Temperature, Water, Air, Surface, Weather
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