Wednesday, February 20, 2013

What is Graupel?

It snowed in Mesa or shall we say, graupel fell from the sky. Phoenix has the weirdest names for our weather events.   It was an amazing event for us living in the Valley of the Sun and everyone took pictures to document this event.  We didn't get enough to make a graupel snowman, but it stuck to the ground for a while.
Graupel on our property
"Graupel - also called soft hail or snow pellet - forms when snow in the atmosphere encounters super-cooled water.  Ice crystals form on the outside of the snow and accumulate until the original snowflake is no longer visible.
Super cooled water - water that started as snow or ice crystal in the atmosphere will pass through a warm layer of air causing melting.  That same droplet will pass through another cold layer near the surface and becomes super cooled."
So much on the Diamondback Stadium,
they didn't know what to do.
  So,they closed practice for a day.
Beautiful double rainbows from my backyard
Graupel and rainbows - it doesn't get prettier than this


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