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Frost Point

Meteorology Frost AdvisoryFrozen Dew

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.

 


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 Point: The temperature to which air must be cooled at constant pressure and humidity to achieve a condition of saturation with respect to ice at or below 0oC (32oF).

frost point: temperature where air is cooled enough to become saturated, but forms ice instead of dew.

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 Point Dew point below freezing.
Fractus Ragged, detached cloud fragments; same as scud.
Friction Head The decrease in total head caused by friction.

Frost pointWhen the temperature to which air must be cooled to in order to be saturated is below freezing.Fujita scaleSystem developed by Dr Theodore Fujita to classify tornadoes based on wind damage.

When this temperature is below 0°C, it is sometimes called the frost point. Dew-point apparatus Same as dew-point hygrometer.

objects near the ground, the temperatures of which have fallen below the dewpoint of the surface air due to radiational cooling during the night, but are still above freezing; hoarfrost may form if the dewpoint is below freezing (see frost point).

Frost Point: The temperature at which forst forms. 32 Degs. F. 0 Degs. C.
Frozen Dew: When dew freezes and changes to ice. Frozen Precipitation: Snow/Snow Pellets/Snow Grains/Hail/Sleet (ICE PELLETS) Ice Crystals.

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.

A covering of ice produced by deposition (sublimation) on exposed surfaces when the air temperature falls below the frost point (the dew point is below freezing).
Frost point(6)
See Dew point.

(frost point: see) dew point (dewpoint)
frostbite
Fujita scale (for measuring tornadoes)
fulgurite
(full lunar eclipse: see) lunar eclipse
full-spectrum light
funnel cloud (related to a tornado) ...

Freezing Drizzle
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: DZ, Freezing Drizzle, Freezing Spray, Frost point, FRZ, Heavy Freezing Spray
ZNS - permalink - collapse ...

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 point.

Frost PointDew point below freezing.FrostbiteHuman tissue damage caused by exposure to intense cold.Frozen DewWhen liquid dew changes into tiny beads of ice. This occurs when dew forms and temperatures later drop below freezing.

See also: Frost, Temperature, Water, Air, Pressure

Meteorology Frost AdvisoryFrozen Dew

 
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