NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2012 Mar 20, 00:14 -0700
Hello Alex, you wrote:
"Bill promises to find the water temperature of water on this day,
but it is really hard to believe in this kind of abnormal refraction. "
I think this is exactly what you were seeing. The lake water is still very cold and then we had this sudden "heat wave". Seriously: 80 degrees Fahrenheit on St. Patricks Day in Chicago?? There have been afternoon and evening fog banks on the lake shore, dense and cold. The conditions that produce this dense, cold, low-hanging fog are notorious for abnormal refraction, too. I think you have seen a really fine example of this!
-FER
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