Unusual 'Hail Fog' Forms After Storm Hits Highlands Ranch
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HIGHLANDS RANCH, Colo. (CBS4)- After a severe thunderstorm moved through Highlands Ranch on Friday an unusual weather phenomenon took place. CBS4 Meteorologist Chris Spears was storm chasing along C-470 when he came upon several banks of hail fog near the University Boulevard exit.
Hail fog forms as the air just above a thick blanket of fresh hail cools down to the dew point temperature.
The fog is typically shallow and just a few feet above the ground when the surface winds are light.
It lasts less than 30 minutes in most cases.
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