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A comment on Nationwide FAA weather reporting outage. Parent comment

Re:Nationwide FAA weather reporting outage by unsupp0rted on Thursday January 19, 2023 @09:41AM (#34440767)
I got curious and Google'd some of this:

> The dew point in relation to the temperature gives the pilots information about the humidity, and can affect visibility. If the dew point is close to the temperature, humidity is high, which can cause hazy conditions, or even fog.

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Re:Nationwide FAA weather reporting outage by dbrueck on Thursday January 19, 2023 @10:50AM (#34441589)
It's also an easy way to get a rough estimate of the bottom of the clouds: 400' above the ground for every 1degC of difference between the temperature and the dew point.

This is useful for a couple of things, including whether or not you can legally take off or land when flying under visual flight rules.

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