https://nsidc.org/cryosphere/snow/science/formation.html

Once snow crystals form in the atmosphere, they grow by absorbing ... as they reach this higher temperature layer; the melting creates evaporative cooling which ...

https://www.weatherquestions.com/What_causes_snow.htm

Nov 28, 2010 ... Brief, simplified description of the causes of snow. ... snow usually occurs in advance of a warm front associated with low pressure ...

https://en.wikipedia.org/wiki/Snow

Snow refers to forms of ice crystals that precipitate from the atmosphere (usually from clouds) ... Snow clouds usually occur in the context of larger weather systems, the most important of which is the low pressure area, .... The corresponding depletion of water vapor causes the ice crystals to grow at the droplets' expense.

https://www.theweatherprediction.com/basic_weather_questions/snow.html

Much of the rain that makes it to the surface started out as snow high aloft and ... Many snow events occur due to either rising moisture on the cold side of a low ...

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/fcst/prcp/rs.rxml

Most precipitation that reaches the ground actually begins as snow high in the atmosphere. These snow flakes develop somewhere above the freezing level ...

http://eo.ucar.edu/webweather/blizzard2.html

For snow to fall to the ground, the temperature must be cold both up in the clouds where ... Warm, rising air is needed to form clouds and cause precipitation.

https://www.youtube.com/watch?v=Bl7K4D3ccfE

Jan 25, 2013 ... We all associate snow with wintry and stormy conditions. But how does it form? In this video Charlie explains how snow forms and how it is ...

https://www.youtube.com/watch?v=Cf6El0mI1fM

Mar 16, 2017 ... For snow to form you need two things. An atmospheric temperature below freezing and sufficient moisture in the air. The process begins with ...

https://easyscienceforkids.com/how-is-snow-made/

Nov 18, 2013 ... Snow occurs when water vapors in the air freeze before they can turn into water. This happens .... Staying outdoors too long can cause frostbite.

https://www.metoffice.gov.uk/weather/learn-about/weather/types-of-weather/snow

Snow is one of the UK's most striking and beautiful weather phenomena causing a transformation of the world around us. ... How does snow form? Snow forms ...