Snow is a type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. Since snow is composed of small ice particles, it is a granular material. It has an open and therefore soft structure, unless packed by external pressure. Quartz crystal Synthetic bismuth crystal Insulin crystals Gallium, a metal that easily forms large single crystals A huge monocrystal of potassium dihydrogen phosphate grown from solution by Saint-Gobain for the megajoule laser of CEA. In chemistry and mineralogy, a crystal is a solid in which the constituent atoms, molecules... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... Snowflakes by Wilson Bentley, 1902 Ice is the name given to any one of the 14 known solid phases of water. ... Cumulus mediocris clouds, as seen from a plane window. ... A granular material is a conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact (the most common example would be friction when grains collide). ... The use of water pressure - the Captain Cook Memorial Jet in Lake Burley Griffin in Canberra, Australia. ...

Snowflake

Animation of snowcover changing with the seasons

Trees covered with snow

A snowflake is an aggregate of ice crystals that forms while falling in and below a cloud. They are typically hexagonally symmetrical.^[1] Image File history File links Earth-satellite-seasons. ... Image File history File links Earth-satellite-seasons. ... Image File history File linksMetadata Size of this preview: 800 × 500 pixel Image in higher resolution (2816 × 1760 pixel, file size: 1. ... Image File history File linksMetadata Size of this preview: 800 × 500 pixel Image in higher resolution (2816 × 1760 pixel, file size: 1. ... Snowflakes by Wilson Bentley, 1902 Ice is the name given to any one of the 14 known solid phases of water. ... Quartz crystal Synthetic bismuth crystal Insulin crystals Gallium, a metal that easily forms large single crystals A huge monocrystal of potassium dihydrogen phosphate grown from solution by Saint-Gobain for the megajoule laser of CEA. In chemistry and mineralogy, a crystal is a solid in which the constituent atoms, molecules... Cumulus mediocris clouds, as seen from a plane window. ... A regular hexagon. ... The triskelion appearing on the Isle of Man flag. ...

Geometry

Large, well formed snowflakes are relatively flat and have six approximately identical arms, so that the snowflake nearly has the same 6-fold dihedral symmetry as a hexagon or hexagram. This symmetry arises from the hexagonal crystal structure of ordinary ice. However, the exact shape of the snowflake is determined by the temperature and humidity at which it forms.^[1]. Rarely, at a temperature of around -2 °C (28 °F), snowflakes can form in threefold symmetry - triangular snowflakes. ^[2] Snowflakes are not perfectly symmetric however. The most common snowflakes are visibly irregular, although near-perfect snowflakes may be more common in pictures because they are more visually appealing. This article deals with three infinite series of point groups in three dimensions which have a symmetry group which as abstract group is a dihedral group Dihn ( n ≥ 2 ). See also point groups in two dimensions. ... A regular hexagon. ... It has been suggested that Pascals Mystic Hexagram be merged into this article or section. ... Enargite crystals In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ... Ice Ih is the hexagonal crystal form of ordinary ice, or frozen water. ...

Snowflake Gallery.

Snow crystal

Snowflakes can come in many different forms, including columns, needles, and plates (with and without "dendrites" - the "arms" of some snowflakes). These different forms arise out of different temperatures and water saturation - among other conditions. Six petaled ice flowers grow in air between 0 degrees Celsius and -3 degrees Celsius. The vapor droplets solidify around a dust particle. Between temperatures of -1 °C (30 °F) and -3 °C (27 °F), the snowflake will be in the form of a dendrite or a plate or the six petaled ice flower. As temperatures get colder, between -5 °C and -10 °C, the crystals will form in either needles or hollow columns or prisms. When the temperature becomes even colder from -10 degrees Celsius to -22 degrees Celsius the ice flowers are formed again and any temperature below -22 degrees Celsius the vapors will turn into the prisms again. In special circumstances, where the crystal has started forming at around -5 °C, and is then exposed to warmer or colder temperatures, a capped column may be formed which consists of a column-like design capped with a dendrite or plate-like design on each end of the column.^[1] At even colder temperatures, the snowflake design returns to the more common dendrite and plate. At temperatures approaching -20 °C, sectored plates are formed which appears as a dendrite, with each dendrite appearing flattened, like the design of a snowflake plate.^[1] Image File history File links Download high-resolution version (3971x560, 328 KB) Galerie de flocons de neige, par Jerome Mathey et Valérian Mazataud. ... Image File history File links Download high-resolution version (3971x560, 328 KB) Galerie de flocons de neige, par Jerome Mathey et Valérian Mazataud. ... Image File history File links Bentley_Snowflake4. ... Image File history File links Bentley_Snowflake4. ... A crystal dendrite is a crystal that develops with a typical multi-branching tree-like form. ...

There are, broadly, two possible explanations for the symmetry of snowflakes. First, there could be communication or information transfer between the arms, such that growth in each arm affects the growth in each other arm. Surface tension or phonons are among the ways that such communication could occur. The other explanation, which appears to be the prevalent view, is that the arms of a snowflake grow independently in an environment that is believed to be rapidly varying in temperature, humidity and other atmospheric conditions. This environment is believed to be relatively spatially homogeneous on the scale of a single flake, leading to the arms growing to a high level of visual similarity by responding in identical ways to identical conditions, much in the same way that unrelated trees respond to environmental changes by growing near-identical sets of tree rings. The difference in the environment in scales larger than a snowflake leads to the observed lack of correlation between the shapes of different snowflakes. The sixfold symmetry happens because of the basic hexagonal crystalline structure from which the snowflake grows. Surprisingly, the exact reason for the threefold symmetry of triangular snowflakes is still a mystery. In physics, surface tension is an effect within the surface layer of a liquid that causes that layer to behave as an elastic sheet. ... Normals modes of vibration progression through a crystal. ... This article or section is not written in the formal tone expected of an encyclopedia article. ... Pinus taeda Cross section showing annual rings Cheraw, South Carolina Dendrochronology or tree-ring dating is the method of scientific dating based on the analysis of tree ring patterns. ... The triskelion appearing on the Isle of Man flag. ...

There is a widely held belief that no two snowflakes are alike, but that claim has not been proven. Strictly speaking, it is extremely unlikely for any two objects in the universe to contain an identical molecular structure; but there are, nonetheless, no known scientific laws that prevent it. In a more pragmatic sense, it's more likely—albeit not much more—that two snowflakes are visually identical if their environments were similar enough, either because they grew very near one another, or simply by chance. The American Meteorological Society has reported that matching snow crystals were discovered by Nancy Knight of the National Center for Atmospheric Research. The crystals were not flakes in the usual sense but rather hollow hexagonal prisms. The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. ... NCAR, Boulder, Colorado National Center for Atmospheric Research (NCAR) is a U.S.-based institute whose stated mission is: NCARs flagship Mesa Laboratory is located in the outskirts of Boulder, Colorado, in a dramatic complex of buildings designed by architect I.M. Pei. ... A regular hexagon. ... In geometry, an n-sided prism is a polyhedron made of an n-sided polygonal base, a translated copy, and n faces joining corresponding sides. ...

A common estimate is that a snowflake can appear in 10¹⁵⁸ forms, under the estimate that a snowflake has 100 attributes that can vary, resulting in 100 factorial forms. However, the number of possible snowflakes per the atomic structure would be based on the number of molecules, and the former number would be very, very large. For factorial rings in mathematics, see unique factorisation domain. ... Properties In chemistry and physics, an atom (Greek ἄτομος or átomos meaning indivisible) is the smallest particle still characterizing a chemical element. ... In science, a molecule is a group of atoms in a definite arrangement held together by chemical bonds. ...

The "Japanese Tsuzumi", an unusual variation of snow crystal, is named after the hourglass-shaped tsuzumi drum.

ImageMetadata File history File links Download high resolution version (1731x2598, 1362 KB) This snow crystal formation is called a Japanese tsuzumi for its resemblance to the hourglass-shaped drum of the same name. ... ImageMetadata File history File links Download high resolution version (1731x2598, 1362 KB) This snow crystal formation is called a Japanese tsuzumi for its resemblance to the hourglass-shaped drum of the same name. ... A tsuzumi is an hourglass-shaped drum introduced from Asia in the 17th century. ...

Snow on the Ground

Snow fall remains on the ground until it melts. In colder climates this results in snow lying on the ground all winter; when the snow does not all melt in the summer it becomes glaciation. Physics In physics, melting is the process of heating a solid substance to a point (called melting point) where it turns liquid. ... A glaciation (a created composite term meaning Glacial Period, referring to the Period or Era of, as well as the process of High Glacial Activity), often called an ice age, is a geological phenomenon in which massive ice sheets form in the Arctic and Antarctic and advance toward the equator. ...

This is often called snowpack, especially when it does persist a long time. The deepest snowpacks occur in mountainous regions. It is influenced by temperature and wind events which determine melting, accumulation and wind erosion. Lyskamm, 4 527 m, Pennine Alps A mountain is a landform that extends above the surrounding terrain in a limited area. ...

The water equivalent of the snow is thickness of the layer of water having the same content. For example, if the snow covering a given area has a water equivalent of 50 cm, then it will melt into a pool of water 50 cm deep covering the same area. This is a much more useful measurement to hydrologists than snow depth, as the density of even freshly fallen snow widely varies. New snow commonly has a density of between 5% and 15% of water. Snow that falls in maritime climates is usually denser than snow that falls in mid-continent locations because of the higher average temperatures over oceans than over land masses. Cloud temperatures and physical processes in the cloud affect the shape of individual snow crystals. Highly branched or dendritic crystals tend to have more space between the arms of ice that form the snow flake and this snow will therefore have a lower density, often referred to as "dry" snow. Conditions that create columnar or platelike crystals will have much less air space within the crystal and will therefore be more dense and feel "wetter". Water covers 70% of the Earths surface. ...

Once the snow is on the ground, it will settle under its own weight (largely due to differential evaporation) until its density is approximately 30% of water. Increases in density above this initial compression occur primarily melting and refreezing, caused by temepeatures above freezing or by direct solar radiation. By late spring, snow densities typically reach a maximum of 50% of water.^[3]

Spring snow melt is a major source of water supply to areas in temperate zones characterized by a prolonged dry summer and fall, and where there are mountains high enough to catch and hold winter snow. In these locations, water equivalent is of great interest to water managers wishing to predict spring runoff and the water supply of cities downstream. Measurements are made manually at marked locations known as snow courses, and remotely using special scales called snow pillows. Runoff flowing into a stormwater drain Surface runoff is water, from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle[1][2]. Runoff that occurs on surfaces before reaching a channel is also called overland flow. ... A water supply system provides water to the locations that need it. ...

Records

The highest seasonal total snowfall ever measured was at Mount Baker Ski Area, outside of Bellingham, Washington in the United States during the 1998–1999 season. Mount Baker received 1,140 in. (29 m) of snow,^[4] thus surpassing the previous record holder, Mount Rainier, Washington, which during the 1971–1972 season received 1,122 in. (28.5 m) of snow.^[5] Guinness World Records list the world’s largest snowflakes as having fallen in January 1887 at Fort Keogh, Montana. One snowflake measured at 15 inches (38 cm) wide. A view of Mt. ... Bellingham, Washington is the county seat of Whatcom County in the U.S. state of Washington. ... 1998 (MCMXCVIII) was a common year starting on Thursday of the Gregorian calendar, and was designated the International Year of the Ocean by UNESCO. [1]. // Coated in ice, power and telephone lines sag and often break, resulting in power outages. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... Mount Rainier is a stratovolcano in Pierce County, Washington, located 54 miles (87 km) southeast of Seattle, Washington, in the United States. ... Official language(s) English Capital Olympia Largest city Seattle Area  Ranked 18th  - Total 71,342 sq mi (184,827 km²)  - Width 240 miles (385 km)  - Length 360 miles (580 km)  - % water 6. ... 1971 (MCMLXXI) was a common year starting on Friday. ... 1972 (MCMLXXII) was a leap year starting on Saturday. ...

Recreation

Building a snowman.

Some forms of recreation depend on snow Download high resolution version (500x752, 55 KB)Caption: 031206-N-0399H-003 Philadelphia, Pa. ... Download high resolution version (500x752, 55 KB)Caption: 031206-N-0399H-003 Philadelphia, Pa. ... Slightly balding 6 2 snowman A snowman is a man-like figure constructed from balls of compacted snow. ... People participating in summer luge as a form of recreation, in the Vosges. ...

• Many winter sports, such as skiing, snowboarding, snowmobiling and snowshoeing
• Playing with a sled or riding in a sleigh
• Building a snowman or snow fort
• Throwing snowballs mutually in a snowball fight or at others to tease them.
• Making a snow angel
• Where snow is scarce but the temperature is low enough, snow cannons may be used to produce an adequate amount for such sports.
• The world's biggest snowcastle, the SnowCastle of Kemi, is built in Kemi, Finland every winter.

A winter sport is a sport commonly played during winter. ... Alpine skier carving a turn on piste Members of the U.S. Air Force skiing (and snowboarding) at Keystone Resorts 14th Annual SnoFest Downhill Ski Racing This article is about snow skiing. ... Snowboarder in a half-pipe Snowboarder on trial Snowboarding is a sport that involves descending a snow-covered slope on a snowboard that is attached to ones feet using a boot/binding interface. ... A snowmobile tour at Yellowstone National Park (NPS Photo) A snowmobile is a land vehicle propelled by one or two rubber tracks, with skis for steering. ... A pair of modern snowshoes Snowshoes, sometimes colloquially referred to as webs, are footwear for walking over snow. ... Scene from winter nearly anywhere snow may fall on a handy hill—Children at play sledding. ... For the cricket meaning, see Sledging (cricket) A sled, sledge or sleigh is a vehicle with runners for sliding instead of wheels for rolling. ... Slightly balding 6 2 snowman A snowman is a man-like figure constructed from balls of compacted snow. ... A snow fort is a usually open topped temporary structure made of snow walls that is used for recreational purposes. ... A sampling of snowballs. ... Four college students from Montclair State University attack their friend during a snowball fight. ... Teasing is the act of playfully disturbing another person, either with words or with actions. ... A Snow Angel is a man-made depression formed in an area of snow in the shape of an angel. ... This does not cite its references or sources. ... SnowCastle in 2006 Snow Restaurant The SnowCastle of Kemi is the biggest snow castle in the world. ... Kemi is a town and municipality of Finland. ...

Snowpack

From the massive glacial fed rivers of the Indus in Pakistan and the Peace in Canada to the smaller rivers in many parts of the world, snowmelt constitutes a significant component of stream runoff both in quantity and time distribution. In fact, accumulations of snow known as snowpack act as a natural reservoir and regulator of stream runoffs. Due to its packing and reflective characteristics a snowpack builds up during the winter season trapping significant amounts of precipitation. With the advent of warmer temperatures in the spring that could continue well into the summer season, the snowpack releases its water content over a period of days to months depending on its size and prevalent meteorological, topographical and landscape conditions of temperature, wind, sun radiation, tree cover, aspect, etc.

Energy balance of the snowpack

The energy balance of the snowpack is dictated by several heat exchange processes. The snowpack absorbs solar shortwave radiation that is partially blocked by cloud cover and reflected by snow surface. A longwave heat exchange takes place between the snowpack and its surrounding environment that includes overlaying air mass, tree cover and clouds. Convective (sensible) heat exchange between the snowpack and the overlaying air mass is governed by the temperature gradient and wind speed. Moisture exchange between the snowpack and the overlaying air mass is accompanied with latent heat transfer that is influenced by vapor pressure gradient and air wind. Rain on snow could induce significant heat input to the snowpack. A generally insignificant conductive heat exchange takes place between the snowpack and the underlying ground. ^[6]

Snowpack and Mass balance

Impact on human society

Snow serves as a thermal insulator conserving the heat of the Earth and protecting crops from subfreezing weather. But substantial snowfall sometimes disrupts infrastructure and services, even those of a region that is accustomed to such weather. Automotive traffic may be greatly inhibited or may be stifled entirely. Basic infrastructures such as electricity, telephone lines, and gas supply can also be shut down. This can lead to a "snow day," a day on which school sessions or other services are canceled owing to an unusually heavy snowfall. Thermal insulation on the Huygens probe The term thermal insulation can refer to materials used to reduce the rate of heat transfer, or the methods and processes used to reduce heat transfer. ... Farmlands in Hebei province, China. ... Nighttime traffic captured by a camera over several seconds. ... 11kV/400V-230V transformer in an older suburb of Wellington, New Zealand Electricity distribution is the penultimate stage in the delivery (before retail) of electricity to end users. ... A telephone line (or just line) is a single-user circuit on a telephone communications system. ... Natural gas is a gaseous fossil fuel consisting primarily of methane but including significant quantities of ethane, butane, propane, carbon dioxide, nitrogen, helium and hydrogen sulfide. ... Mark Webber and Emmanuelle Chriqui in Paramounts Snow Day. ...

In areas that normally have very little or no snow, a snow day may occur with light accumulation or even the threat of snowfall, as those areas are ill prepared to handle any amount of snow. A mudslide, flash flood, or avalanche can occur when excessive snow has accumulated on a mountain and there is a sudden change of temperature. A mudflow or mudslide is the most rapid (up to 80 km/h) and fluid type of downhill mass wasting. ... Lower Antelope Canyon was carved out of sandstone by flash floods A Flash Flood is a rapid flooding of geomorphic low-lying areas (washes), rivers and streams, caused by the intense rainfall associated with a thunderstorm, or multiple training thunderstorms. ... A Himalayan avalanche near Mount Everest. ...

Types of snow

Hoar frost that grows on the snow surface due to water vapor moving up through the snow on cold, clear nights

Image File history File linksMetadata Download high resolution version (2272x1704, 2581 KB) Licensing I, the creator of this work, hereby release it into the public domain. ... Image File history File linksMetadata Download high resolution version (2272x1704, 2581 KB) Licensing I, the creator of this work, hereby release it into the public domain. ... Hoar frost on a rose twig. ...

Snow precipitation

Blizzard

A long-lasting snow storm with intense snowfall and usually high winds. Particularly severe storms can create whiteout conditions where visibility is reduced to less than 1 m.

Flurry

A period of light snow with usually little accumulation with occasional moderate snowfall.

Freezing rain

Rain that freezes on impact with a sufficiently cold surface. This can cover trees in a uniform layer of very clear, shiny ice – a beautiful phenomenon, though excessive accumulation can break tree limbs and utility lines, causing utility failures and possible property damage.

Snowbird ski resort, one of the snowiest places in the U.S.

Graupel

Precipitation formed when freezing fog condenses on a snowflake, forming a ball of rime ice. Also known as snow pellets.

Ground blizzard

Occurs when a strong wind drives already fallen snow to create drifts and whiteouts.

Hail

Many-layered ice balls, ranging from "pea" sized (0.25 in, 6 mm) to "golf ball" sized (1.75 in, 43 mm), to, in rare cases, "softball" sized or greater (­>4.25 in, 108 mm).

Hailstorm

A storm of hail. If the hail is sufficiently large, it can cause damage to cars or even people.

Lake effect snow

Produced when cold winds move across long expanses of warmer lake water, picking up water vapor which freezes and is deposited on the lake's shores.

Sleet

In Britain, rain mixed with snow; in America, ice pellets formed when snowflakes pass through a layer of warm air, thaw, then refreeze on further descent.

Snow pellets

See graupel.

Snow squall

A brief, very intense snowstorm.

Snow storm

A long storm of relatively heavy snow.

Soft hail

Granules of snow or ice pellets formed when supercooled water accretes on ice crystals or snowflakes.

Thundersnow

A thunderstorm which produces snow as the primary form of precipitation.

Look up Blizzard in Wiktionary, the free dictionary. ... Whiteout is a weather condition in which visibility is reduced by snow and diffuse lighting from overcast clouds. ... Categories: Free software | Software stubs ... A shrub coated by glaze after a night of freezing rain. ... Image File history File linksMetadata Download high resolution version (2048x1536, 1640 KB) Summary Own work Licensing File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Snow Snowboard Skiing Ski Utah Snowboarding Ski resort Snowbird ski resort Metadata This file... Image File history File linksMetadata Download high resolution version (2048x1536, 1640 KB) Summary Own work Licensing File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Snow Snowboard Skiing Ski Utah Snowboarding Ski resort Snowbird ski resort Metadata This file... Inside the Snowbird Cliff Lodge Snowbird is a year-round ski and summer resort located in the U.S. state of Utah on the eastern border of the Salt Lake City suburb of Sandy in the Little Cottonwood Canyon of the Wasatch mountain range in the Rocky Mountains. ... Graupel can be any of the following types of solid-ice precipitation: hail - large chunks of ice such as from a strong or severe thunderstorm sleet - small pellets of raindrops that have frozen in mid-air, in winter or a thunderstorm snow pellets - when freezing fog forms 2-5mm balls... A ground blizzard in Ontario, March 21st, 2004 The term Ground Blizzard refers to a weather condition where loose snow or ice on the ground is lifted and blown by strong winds. ... This does not cite any references or sources. ... Hailstorm may refer to: a kind of precipitation a digital identity project by Microsoft Categories: | ... Lake-effect precipitation coming off the Great Lakes, as seen from NEXRAD. Lake effect snow, which can be a type of snowsquall, is produced in the winter when cold, artic dry winds move across long expanses of warmer lake water, picking up water vapor which freezes and is deposited on... Sleet is a term used in a variety of ways to describe precipitation intermediate between rain and snow but distinct from hail. ... Streaming lake-effect clouds off Lakes Nipigon, Superior, Michigan, Huron, St. ... ... A shelf cloud associated with a heavy or severe thunderstorm over Enschede, Netherlands A storm is any disturbed state of an astronomical bodys atmosphere, especially affecting its surface, and strongly implying severe weather. ... Soft hail is a form of precipitation where snow flakes partially melt on falling into warmer air forming sleet with the loss of their flake structure, and then re-freeze on passing back into colder air to form amorphous or semi-crystalline pellets of snow. ... Thundersnow is a particularly rare meteorological phenomenon that includes the typical behavior of a thunderstorm, but with snow falling as the primary precipitation instead of rain. ... A shelf cloud associated with a heavy or severe thunderstorm over Enschede, The Netherlands. ...

Snow on ground

Snow covering a leaf.

Winter in Croatia

Artificial snow

Snow can be also manufactured using snow cannons, which actually create tiny granules more like soft hail (this is sometimes called "grits" by those in the southern U.S. for its likeness to the texture of the food). In recent years, snow cannons have been produced that create more natural-looking snow, but these machines are prohibitively expensive.

Blowing snow

Snow on ground that is being moved around by wind. See ground blizzard.

Corn

Coarse, granular wet snow. Most commonly used by skiers describing good spring snow. Corn is the result of diurnal cycle of melting and refreezing.

Crust

A double layer of snow in which the lower layer may be powdery dry but where the surface is frozen together into a stiff, icy surface, which often can support human weight.

Ice

Densely packed material formed from snow that doesn't contain air bubbles. Depending on the snow accumulation rate, the air temperature, and the weight of the snow in the upper layers, it can take snow a few hours or a few decades to form into ice.

Firn

Snow which has been lying for at least a year but which has not yet consolidated into glacier ice. It is granular.

Packed Powder

The most common snow cover on ski slopes, consisting of powder snow that has lain on the ground long enough to become compressed, but is still loose.

Heavy snow on pine tree

Packing snow

Snow that is at or near the melting point, so that it can easily be packed into snowballs and hurled at other people or objects. This is perfect for snow fights and other winter fun, such as making a snowman, or a snow fort.

Penitentes

Tall blades of snow found at high altitudes.

Powder

Freshly fallen, uncompacted snow. The density and moisture content of powder snow can vary widely; snowfall in coastal regions and areas with higher humidity is usually heavier than a similar depth of snowfall in an arid or continental region. Light, dry (low moisture content) powder snow is prized by skiers and snowboarders. It is often found in the Rocky Mountains of North America and in Niseko, Japan.

Slush

Snow which partially melts upon reaching the ground, to the point that it accumulates in puddles of partially-frozen water.

The textures of a snowdrift on the Long Mynd, Shropshire

Snowdrift

Large piles of snow which occur near walls and curbs, as the wind tends to push the snow up toward the vertical surfaces.

Watermelon snow

A reddish/pink colored snow that smells like watermelons, and is caused by a red colored green algae called chlamydomonas nivalis

Image File history File linksMetadata Download high-resolution version (3008x2000, 1923 KB) Own work. ... Image File history File linksMetadata Download high-resolution version (3008x2000, 1923 KB) Own work. ... Image File history File links Download high resolution version (1024x768, 173 KB) Summary This is a pic of my house during the winter. ... Image File history File links Download high resolution version (1024x768, 173 KB) Summary This is a pic of my house during the winter. ... Snow cannon at Mölltaler Gletscher, Austria A snow cannon (also called snowgun or snow maker) is a device used to produce snow artificially. ... This does not cite its references or sources. ... Historic Southern United States. ... A ground blizzard in Ontario, March 21st, 2004 The term Ground Blizzard refers to a weather condition where loose snow or ice on the ground is lifted and blown by strong winds. ... Snowflakes by Wilson Bentley, 1902 Ice is the name given to any one of the 14 known solid phases of water. ... Image File history File linksMetadata Size of this preview: 800 × 500 pixel Image in higher resolution (2816 × 1760 pixel, file size: 1. ... Image File history File linksMetadata Size of this preview: 800 × 500 pixel Image in higher resolution (2816 × 1760 pixel, file size: 1. ... This article deals with the tree; for the e-mail client see Pine email client Species About 115. ... Los Hermanos de la Fraternidad Piadosa de Nuestro Padre Jesús Nazareno (Spanish: The Brothers of the Pious Fraternity of Our Father Jesus the Nazarene, also known as Los Penitentes, Los Hermanos, and the Penitente Brotherhood) is a lay confraternity of Roman Catholic men active in Northern New Mexico and... The Rocky Mountains, often called the Rockies, are a broad mountain range in western North America. ... This article is about the mixture of solid and liquid snow. ... Image File history File linksMetadata Download high-resolution version (1600x1200, 189 KB) Self made: This photo was taken on the Long Mynd in Shropshire after a snow storm hit the region in early 2005 (February 24th) This shows the Texture of a Snow Drift when formed, with contrast to a... Image File history File linksMetadata Download high-resolution version (1600x1200, 189 KB) Self made: This photo was taken on the Long Mynd in Shropshire after a snow storm hit the region in early 2005 (February 24th) This shows the Texture of a Snow Drift when formed, with contrast to a... The Long Mynd, or Long Mountain, is a ridge of high ground in South Shropshire, running roughly SW to NE, and extending some 15 km in length, between the Stiperstones to the west, and Wenlock Edge to the east. ... Shropshire (alternatively Salop or abbreviated Shrops) is an English county in the West Midlands region of the United Kingdom. ... A fairly common sight during snowstorms big and small. ... Binomial name Chlamydomonas nivalis (Bauer) Wille Watermelon snow is snow that is reddish or pink in color, with the slight scent of a fresh watermelon. ... Binomial name Citrullus lanatus (Thunb. ... Divisions Chlorophyta Charophyta Green algae are microscopic protists; found in all aquatic environments, including marine, freshwater and brackish water. ... Binomial name Chlamydomonas nivalis (Bauer) Wille Watermelon snow is snow that is reddish or pink in color, with the slight scent of a fresh watermelon. ...

See also

• Cold wave
• Frost
• Grit bin
• Igloo
• Lake effect snow
• Snowbelt
• SnowCastle of Kemi
• Snow removal
• Snow sculpture
• Snow blindness
• List of countries receiving snowfall
• Eskimo words for snow
• Wilson "Snowflake" Bentley

Wikipedia does not have an article with this exact name. ... Image File history File links Wikibooks-logo. ... Image File history File links Wikiquote-logo. ... Image File history File links Wikisource-logo. ... Image File history File links Commons-logo. ... Image File history File links WikiNews-Logo. ... Image File history File links Wikiversity-logo-Snorky. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Frost on black pipes Frost is a solid deposition of water vapor from saturated air. ... A grit bin made from fibreglass. ... Igloo An igloo (Inuit language: iglu, Inuktitut syllabics: ᐃᒡᓗ, house, plural: iglooit or igluit), translated sometimes as snowhouse, is a shelter constructed from blocks of snow, generally in the form of a dome. ... Lake-effect precipitation coming off the Great Lakes, as seen from NEXRAD. Lake effect snow, which can be a type of snowsquall, is produced in the winter when cold, artic dry winds move across long expanses of warmer lake water, picking up water vapor which freezes and is deposited on... A snowbelt is a region, many of which lie downwind of the Great Lakes, where heavy snowfall is particularly common. ... SnowCastle in 2006 Snow Restaurant The SnowCastle of Kemi is the biggest snow castle in the world. ... A sidewalk clearing plow in Ottawa, Canada Snow removal is the job of removing snow after a snowfall to make travel easier and safer. ... Snow sculpture is a sculpture form comparable to ice sculpture in that most of it is now practiced outdoors, and often in full view of spectators, thus giving it kinship to performance art in the eyes of some. ... Snowblind redirects here. ...  snows at 1000m or below  may snow at or below 1000m, but not very often  only snows higher than 1000m This is a list of countries receiving snowfall. ... It is a popular urban legend that the Inuit or Eskimo have an unusually high number of words for snow. ... Wilson Snowflake Bentley (1865–1931), born in Jericho, Vermont, was the first known photographer of snowflakes. ...

References

1. ^ ^{a b c d} Klesius, Michael (2007), "The Mystery of Snowflakes", National Geographic 211(1): 20, ISSN 0027-9358
2. ^ http://www.its.caltech.edu/~atomic/snowcrystals/class/class.htm
3. ^ http://cdec.water.ca.gov/snow/misc/density.html
4. ^ http://www.usatoday.com/weather/news/1999/wsnorcrd.htm
5. ^ http://www.nps.gov/archive/mora/interp/faq.htm
6. ^ http://www.scientificjournals.org/journals2007/articles/1118.pdf

External links

• Snowpack energy and mass balance An article that contains detailed analysis of snowpack energy and mass balance.
• Ultra-high resolution images of snowflakes, hosted by the Electron Microscopy Unit of the USDA Beltsville Agricultural Research Center
• Snow at above freezing temperatures
• Kenneth G. Libbrecht - Snowflake FAQ