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1
Snow Roller
Snow Roller
::2007/12/14::
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2
Snow Roller 8k+
Snow Roller 8k+
::2010/05/10::
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3
BEER HUNTER REVIEWS MAGIC HAT SNOW ROLLER 10/25/14 HOPPY BROWN ALE
BEER HUNTER REVIEWS MAGIC HAT SNOW ROLLER 10/25/14 HOPPY BROWN ALE
::2014/10/25::
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4
Patagonia Black Hole Snow Roller 167CM
Patagonia Black Hole Snow Roller 167CM
::2013/08/26::
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5
Magic Hat Presents...Snow Roller
Magic Hat Presents...Snow Roller
::2014/10/17::
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6
Patagonia Black Hole Snow Roller 190CM
Patagonia Black Hole Snow Roller 190CM
::2013/08/26::
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7
Snow Roller
Snow Roller
::2011/04/17::
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8
Louisiana Beer Reviews: Magic Hat Snow Roller
Louisiana Beer Reviews: Magic Hat Snow Roller
::2014/12/17::
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9
Snow Roller Reactions
Snow Roller Reactions
::2014/01/28::
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10
Winter Fun with Swendson Snow Roller
Winter Fun with Swendson Snow Roller
::2012/12/01::
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11
Snow Roller, Adirondacks
Snow Roller, Adirondacks
::2010/01/08::
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12
Snow Roller - Take Your Soul for a Roll
Snow Roller - Take Your Soul for a Roll
::2014/12/03::
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13
Miniature Horse Snow Roller
Miniature Horse Snow Roller
::2014/01/02::
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14
(VF) Patagonia Black Hole Snow Roller 167CM - Version Française
(VF) Patagonia Black Hole Snow Roller 167CM - Version Française
::2014/02/27::
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15
Snow Roller
Snow Roller
::2014/01/28::
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16
Nordic Ski Trail Grooming with Snow Roller
Nordic Ski Trail Grooming with Snow Roller
::2012/03/07::
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17
(VF) Patagonia Black Hole Snow Roller 190CM - Version Française
(VF) Patagonia Black Hole Snow Roller 190CM - Version Française
::2014/02/27::
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18
snow roller being pulled by horses
snow roller being pulled by horses
::2014/02/24::
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19
Snow roller Phenomenon During Polar Vortex
Snow roller Phenomenon During Polar Vortex
::2014/01/27::
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20
Snow Roller!!
Snow Roller!!
::2008/12/15::
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21
deck rider chute skate ski snow roller
deck rider chute skate ski snow roller
::2007/05/18::
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22
DG Beer Review: Magic Hat Snow Roller
DG Beer Review: Magic Hat Snow Roller
::2014/11/24::
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23
compil skate snow roller lav
compil skate snow roller lav
::2006/06/07::
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24
Snow Roller Forming
Snow Roller Forming
::2014/02/18::
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25
Snow Roller Mayhem with Gwen and Saphira
Snow Roller Mayhem with Gwen and Saphira
::2014/02/22::
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26
Snow Roller
Snow Roller
::2008/04/28::
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27
Figure skating off ice.Roller-Snow white (фигурное катание на роликах)
Figure skating off ice.Roller-Snow white (фигурное катание на роликах)
::2011/01/15::
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28
Darwin the Cavachon - Snow Roller
Darwin the Cavachon - Snow Roller
::2013/03/11::
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29
Ally G Daredevil Snow Roller
Ally G Daredevil Snow Roller
::2010/01/01::
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30
Neopets- The Worst Snow Roller Player In The WORLD (LITERALLY!)
Neopets- The Worst Snow Roller Player In The WORLD (LITERALLY!)
::2013/08/11::
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31
Event : Snow Roller and Boss NooNoo
Event : Snow Roller and Boss NooNoo
::2007/12/31::
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32
Let
Let's Play Sonic The Hedghog 4 Episode II Part 2: Snow, Roller Coasters, and Rockets!
::2012/06/12::
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33
Snow Roller
Snow Roller
::2007/02/14::
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34
Snow Roller Balls in Red Pine.mov
Snow Roller Balls in Red Pine.mov
::2010/12/13::
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35
skate snow roller
skate snow roller
::2008/01/23::
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36
Snow roller
Snow roller
::2014/01/30::
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37
Bulldog snow roller
Bulldog snow roller
::2013/02/27::
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38
Snow roller
Snow roller
::2013/02/07::
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39
Snow Roller
Snow Roller
::2013/03/04::
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40
Snow Roller
Snow Roller
::2011/02/06::
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41
Snow roller
Snow roller
::2012/11/09::
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42
Sällskapsresan 2 - Snowroller
Sällskapsresan 2 - Snowroller
::2008/03/21::
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43
Stacia Plays Snow Roller - HIGH SCORE
Stacia Plays Snow Roller - HIGH SCORE
::2013/03/29::
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44
Silversoft trying to play Snow Roller on www.neopets.com
Silversoft trying to play Snow Roller on www.neopets.com
::2012/02/19::
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45
BUBBA SNOW ROLLER
BUBBA SNOW ROLLER
::2011/01/08::
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46
Husky Mix, Timber--Snow Roller
Husky Mix, Timber--Snow Roller
::2011/02/17::
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47
snow roller
snow roller
::2011/03/10::
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Seven Dwarfs Mine Train Roller Coaster REAL POV Full Ride Walt Disney World Magic Kingdom
Seven Dwarfs Mine Train Roller Coaster REAL POV Full Ride Walt Disney World Magic Kingdom
::2014/05/01::
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49
Snow Day - Littlest Pet Shop Chilly Weather Fun Playset LPS Rolleroos
Snow Day - Littlest Pet Shop Chilly Weather Fun Playset LPS Rolleroos
::2014/04/01::
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Quarter Guy on Roller Blades in the Snow
Quarter Guy on Roller Blades in the Snow
::2013/01/27::
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From Wikipedia, the free encyclopedia
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A snow roller in Cincinnati, Ohio, USA.

A snow roller is a rare meteorological phenomenon in which large snowballs are formed naturally as chunks of snow are blown along the ground by wind, picking up material along the way, in much the same way that the large snowballs used in snowmen are made.

Unlike snowballs made by people, snow rollers are typically cylindrical in shape, and are often hollow since the inner layers, which are the first layers to form, are weak and thin compared to the outer layers and can easily be blown away, leaving what looks like a doughnut or Swiss roll. Snow rollers have been seen to grow as large as two feet in diameter.

The following conditions are needed for snow rollers to form:

  • There must be a relatively thin surface layer of wet, loose snow, with a temperature near the melting point of ice
  • Under this thin layer of wet snow there must be a substrate to which the thin surface layer of wet snow will not stick, such as ice or powder snow
  • The wind must be strong enough to move the snow rollers, but not strong enough to blow them apart.
  • Alternatively, gravity can move the snow rollers as when a snowball, such as those that will fall from a tree or cliff, lands on a steep hill and begins to roll down the hill.

Because of this last condition, snow rollers are more common in hilly areas. However, the precise nature of the conditions required makes them a very rare phenomenon.

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