Bryce FLK wrote:
I am in for tomorrow, prly heading to MC.
Am I reading this map right? A 30 degree difference in water temperature only over 10-15 miles? http://www.coastwatch.msu.edu/michigan/m53.html
Is this what everyone means by the lake 'turning'??
Dug a little deeper in your link and went to the HELP tab toward the bottom and got this explanation;
4. Cloud covered areas of the lake surface cannot be read accurately by NOAA satellites so the computer program colors them black. Areas near the black masked cloud cover may not be as precisely reported as those some distance from the clouds. CoastWatch images are generally representative of surface temperature conditions, they are not as accurate as your road atlas.
5. Some areas are masked with grey color because the computer program has indicated the temperatures presented are probably cloud temperatures. The air temperature at the tops of clouds can sometimes be very nearly the same as the surface water temperature of the lakes below. The grey-scale masking indicates that the accuracy of temperature reporting is lower at this time. Watching CoastWatch temperature patterns over the days, weeks and seasons provides useful information on lake surface temperatures.
I think the NOAA link you provided second is a more accurate reflection.