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17th March 2019 | 23:50

#98 (permalink)

megan

Joined: Mar 2005

: Military

Posts: 6,563

Likes: 952

From: Aus

Water can remain liquid down to -40°C. Then you can have ice fog which only forms under specific conditions; the humidity has to be near 100% as the air temperature drops to well below 0 °C (32 °F), allowing ice crystals to form in the air.

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