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Where does snow come from? Snow and clouds… Clouds and snow… What’s with snow?
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Love the rain | 6 September 2008 | par : remy

Just like rain, snow falls from clouds. Different weather conditions lead to different types of precipitation.

Snow forms in high altitude clouds, where temperatures are extremely low.

Water vapour freezes around condensation seeds as ice crystals.

When they reach a critical mass, the crystals fall. As the crystals fall to the ground, the ambient temperature rises:

- if the temperature stays below freezing (0°C), the ice crystals stick together and make flakes that land on the ground. This is snow.

- if the temperature rises above freezing, the ice crystals melt. This results in wet, sleety snow or just plain old rain.

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