To restate the OP, Garth Bock linked to
this article about predicting the weather with your morning coffee.
To test this theory and compare it with other popular forecasts for accuracy, I compiled forecasts for ten consecutive days and recorded my observations at the end of the day. The chart below represents (in order of percentage successful forecasts) the results. Y= successful forcast. N = unsuccessful forecast. Highly subjective and not entirely scientific, but it was fun. Here we go...
COFFEE YYNYYYYYYN
80%NWS YYNYYYYNYY 80%
LOCAL-TV YYNYYYNNYY 70%
TWC YYNNYYYNYN 60%
WU YYNNYYNNYY 60%
VUE YNNYNNYYNY 50%
Please draw your own conclusions. I have to cut the Davis Vue a little slack, because there are no subjective inputs to it's forecast, and the weather in the Puget Sound region of Washington State is hard to predict even when a meteorologist is doing the fortune-telling. Their broadcasts typically change frequently throughout the day, but I went with what I read in their personalized online post in the morning.