Frozen precipitation
Diamond dust - fine powdery ice crystals that fall in extremely cold weather, even without clouds.
Ice pellets - small hail or sleet type of precipitation.
FROZEN PRECIPITATION Precipitation that reaches the ground in a frozen state. Examples include snow, snow pellets, snow grains, ice crystals, ice pellets, and hail.
HAIL: Frozen precipitation in the form of layered lumps of ice produced by convection within cumulonimbus clouds.
HAZE: Fine dust particles present in a portion of the atmosphere.
SNOW Frozen precipitation in the form of white or translucent ice crystals in complex branched hexagonal form. It most often falls from stratiform clouds, but can fall as snow showers from cumuliform ones.
A type of frozen precipitation, consisting of small transparent pellets.
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SNOW: Frozen precipitation composed of ice particles in complex hexagonal patterns.
SNOW ADVISORY: An advisory issued when snow is expected to create hazardous or restricted travel conditions, but not as severe as expected with a winter storm.
Sleet - Frozen precipitation that falls as little chunks o' ice.
Sounding - A temperature profile of the atmosphere measured by a radiosonde. Also can indicate wind and dew point.
hail: frozen precipitation that looks like balls or lumps of ice. Usually produced by cumulonimbus clouds.
HAIL - A form of frozen precipitation consisting of balls or lumps of ice. Hail can be as small as a pea or larger than a grapefruit in extreme cases.
Snow: A type of frozen precipitation composed white translucent ice crystals in a variety of complex hexagonal forms.
Mixed PrecipitationAny of the following combinations of freezing and frozen precipitation: snow and sleet, snow and freezing rain, or sleet alone. Rain may also be present.
Water Equivalant: The amount of liquid measured on the ground from snow, ice and frozen precipitation.
Water In 3 Stages:Solid: Liquid: Gas:
Water: H2O Water: H20. 2 parts Hydrogen 1 part water.
Precipitation Probabilities (PoP): It is defined as the likelihood of occurrence (expressed as a percent) of a measurable amount of liquid precipitation (or the water equivalent of frozen precipitation) during a specified period of time at any ...
It is defined as the likelihood of occurrence (expressed as a percent) of a measurable amount of liquid precipitation (or the water equivalent of frozen precipitation) during a specified period of time at any given point in the forecast area.
Hail - A mixture of liquid and frozen precipitation. Hailstones are composed of layers of ice and can become quite large when strong gusts of upward-moving air keep them inside the cloud.
Listed weather types include tornado, waterspout, funnel cloud, thunderstorm and severe storm, liquid precipitation (drizzle, rain, rain showers), freezing precipitation (freezing drizzle, freezing rain), and frozen precipitation (snow, snow pellets, ...
Any of the following combinations of freezing and frozen precipitation: snow and sleet, snow and freezing rain, or sleet alone. Rain may also be present.
Mixing Depth ...
Graupel Ice pellets, generally 2 to 5 millimeters in diameter, formed in a cloud when supercooled water droplets collide and freeze on impact; a form of frozen precipitation. Sometimes applied to snow pellets.
The more common term rainfall is also used in this total sense to include not only amounts of rain, but also the water equivalents of frozen precipitation. For obvious reasons, precipitation is the preferred general term.
 See also: Precipitation, Weather, Atmosphere, Earth, Water
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