Snow an aggregate of ice crystals
Snowflakes are simply aggregates of ice crystals that collect to each other as they fall toward the surface.
Snow cover 1) In general, a layer of snow on the ground surface. 2) The areal extent of snow-covered ground, usually expressed as per cent of total area in a given region.
Snow Gauge
Copper catchment container
The graduate for measuring the amount of melted snow ...
Bands of snow can be seen forming off the Great Lakes.
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snow pellets"(Also called soft hail, graupel, tapioca snow.) Precipitation consisting of white, opaque, approximately round (sometimes conical) ice particles having a snowlike structure, and about 2-5 mm in diameter.
Snow - precipitation in the form or small tabular and columnar white ice crystals formed directly from the water vapor of the air at a temperature of less than 0 degrees Celsius
Snow Flurries - popular term for a light snow shower ...
Snow Advisory- This product is issued when a low pressure system produces snow that may cause significant inconveniences but do not meet warning criteria and if caution is not exercised could lead to life threatening situations.
Snow
Precipitation of ice crystals, most of which are branched (sometimes star shaped).
Southern Oscillation Index (SOI) ...
snow - Precipitation composed of white or translucent ice crystals, chiefly in complex branch hexagonal form and often agglomerated into snowflakes. For weather-observing purposes, the intensity of snow is characterized as 1) light when the ...
Snow level
The elevation in mountainous terrain where precipitation changes from rain to snow.
Sounding ...
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.
Snow: A type of frozen precipitation composed white translucent ice crystals in a variety of complex hexagonal forms.
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.
Snow Pillow An instrument used to measure snow water equivalents. Snow pillows typically have flat stainless steel surface areas.
Snow that is raised by the wind to heights of six feet or greater. It is reported as "BLSN" in an observation and on the METAR.
BLOWING SPRAY ...
Snow Advisory
This product is issued by the National Weather Service when a low pressure system produces snow that may cause significant inconveniences, ...
Snow flurries Light showers of snow that fall intermittently.
Snow grains Precipitation in the form of very small, opaque grains of ice. The solid equivalent of drizzle.
Snow - the white stuff
Sounding - A plot of the vertical profile of temperature and dew point (and often winds) above a fixed location ( example). Soundings are used extensively in weather forecasting, e.g.
SNOW - Unless qualified by such words as " occasional" or " intermittent" , a prediction of snow indicates a steady fall of a few hours or more.
Snow pellets Frozen form of precipitation consisting of soft spherical (or sometimes conical) particles of opaque, white ice having diameters of 2 to 5 mm.
Snow Penitents The term "snow penitents" is used to describe a peculiar formation of old snow that is melting mostly as a result of sunlight rather than ambient air temperature.
Snow Flurries- Light snow showers, usually of an intermittent nature and short duration with no measurable accumulation.
Snow Grains- Precipitation of very small, white, opaque grains of ice.
Snow Advisory - Issued when snowfall is expected to exceed 2 inches but not expected to exceed 5 inches.
Corn Snow Ice
In hydrologic terms, rotten granular ice.
Corner Effects ...
Firn (Snow)
In hydrologic terms, old snow on top of glaciers, granular and compact and not yet converted into ice. It is a transitional stage between snow and ice. Also called Neve.
Firn Line ...
Heavy Snow- usually means snowfall of four air inches or more in twelve hours or less, or six inches or more in twenty-four hours or less in lower elevation; in higher elevations it means twelve inches or more in twelve hours or less, ...
Yellow Snow - permalink - collapse
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Snow given a golden or yellow appearance by the presence in it of pine, cypress pollen, or anthropogenic material or animal-produced material.
BLOWING SNOW Snow that is raised by the wind to heights of six feet or greater. It is reported as "BLSN" in an observation and on the METAR.
Federal Snow Sampler - permalink - collapse
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Snow situations at lowland locations are often marginal in maritime NW Europe. Why is this so, and why do forecasters find it so difficult to get it right?
Snow will develop across most of the plains by this afternoon, with a lower chance in areas north of Fort Collins and Akron. Snow amounts of 1 to 3 inches are expected. The snow will end from west to east tonight.
Snow grains - very small solid chunks of snow.
Hail - large, odd-shaped, layered ice chunks that fall from thunderstorms.
Sleet - raindrops that freeze before hitting the earth.
SNOW SQUALL: Intense showers or bands of locally heavy snow, often produced by the lake effect.
SQUALL LINE: A non-frontal band, or line, of thunderstorms.
STATIONARY FRONT: A transition zone between air masses, with neither advancing upon the other.
Snow- Precipitation consisting of clumps of ice crystals.
Solar Energy- The energy produced by the sun.
Solstice- The time of year when the sun is the farthest north or the farthest south (about June 21 and December 21).
Snow Depth
A measurement of the depth of snow on the ground made either since the snow began falling or since a previous observation.
Snow pellets: precipitation, usually of brief duration, consisting of crisp, white, opaque ice particles, round or conical in shape and about 2 to 5 mm in diameter. Same as graupel or small hail.
Snow - Precipitation that is composed of white ice crystals that fall from clouds. Snow may stick together to form snowflakes, which have a hexagonal or six-sided shape.
Snow water content (SWC)(8)
How much liquid water is contained in a volume of solid snow (in other words, how much water would be measured if a known amount of snow was melted).
SNOW SQUALL - A sudden and very heavy snow shower. Can be associated with snow thunderstorms or simply having strong winds prevailing off a relatively warm body of water in freezing, unstable conditions.
Heavy snow accompanied by a gale force wind.
Buys Ballots Law
A physical law describing wind flow around high and low pressure.
Airborne Snow Survey Program
In hydrologic terms, Center (NOHRSC) program that makes airborne snow water equivalent and soil moisture measurements over large areas of the country that are subject to severe and chronic snowmelt flooding.
BLIZZARD- Snow with winds greater than 35 mph and visibility of 1/4 mile or less that lasts for several hours.
BLO- Below.
Lake-Effect Snow - Snow showers associated with a cP air mass to which moisture and heat are added from below as it traverses a large and relatively warm lake (such as one of the Great Lakes), rendering the air mass humid and unstable.
It is also very useful in tracing intrusions of stratospheric air deep into the troposphere in the vicinity of jet streaks.Powder SnowDry, loose, unconsolidated snow.PowerA radar equation to describe the amount of power that a radar emits.
Heavy Freezing Spray WatchA watch for an increased risk of a heavy freezing spray event to meet Heavy Freezing Spray Warning criteria but its occurrence, location, and/or timing is still uncertain. Heavy SnowThis generally means...
BlizzardIncludes winter storm conditions of sustained winds or frequent gusts of 35 mph or more that cause major blowing and drifting of snow, reducing visibility to less than one-quarter mile for 3 or more hours.
SNOTEL SNOw TELemetry. An automated network of snowpack data collection sites.
air, water, land, and ice), kinetic (wind and ocean currents, together with associated vertical motions and the motions of air masses, aqueous humidity, cloudiness and cloud water content, groundwater, lake lands, and water content of snow ...
snowPrecipitation in the form of ice crystals, mainly of intricately branched, hexagonal form and often agglomerated into snowflakes, formed directly from the freezing [deposition] of the water vapor in the air.
A Föhn wind, the Chinook (Inuit for snow-eater), is a very common winter feature in Denver, Colorado, where it usually makes February a dry, sunny and warm month.
When ice crystals move within a very cold cloud (10 °F and -40 °F) and enough water droplets freeze onto the ice crystals, snow will fall from the cloud. If the surface temperature is colder than 32 °F, the flakes will land as snow.
Note that in the winter months, some radar sites will go to Clear Air mode even if there is light snow in the area.
Gauges can be adapted to collect snow for the determination of liquid water equivalent of snowfall. Recording rain gauges measure precipitation rates over fixed time intervals to provide an indication of rainfall intensity .
Lake effect - The effect of a lake (usually a large one) in modifying the weather near the shore and down wind. It is often refers to the enhanced rain or snow that falls downwind from the lake.
When the difference is positive the northeastern United States sees an increase in temperature and a decrease in snow days; the central US has increased precipitation, the North Sea has an increase in storms; ...
A disturbance of the atmosphere marked by wind and usually by rain, snow, hail, sleet, or thunder and lightning. In marine usage, winds 48 knots (55 mph) or greater.
Weather Glossary Search Page
Weather Glossary Source List ...
cryosphere: a component of the Earth's system that is frozen water; the forms include: snow, permafrost, floating ice, and glaciers.
Associated Weather: Drizzle or light snow.
Hazard Warning: Restricted visibility.
A brief, violent windstorm, usually, but not necessarily associated with rain or snow.
Squall line
A line of thunderstorms, or other heavy weather, often running parallel to, and ahead of, a cold front.
 See also: Weather, Temperature, Air, Water, Surface
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