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Old 08-23-2019, 01:29 PM   #2
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Default Watch dewpoint temperatures

Watch dewpoint temperatures vs air temperatures. The closer those two are, there is a likelihood of fog, especially with calm winds.

One point: using a GPS device to navigate in fog may keep you from hitting an island, a shoal area, e.t.c., but won't keep you from hitting another vessel doing the same thing!

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