On This Date in Minnesota History: October 7

October 7, 1949 – “Hailed as the tallest illuminated sign between Chicago and the West Coast, the 12-story Weatherball [atop the Northwestern National Bank building in downtown Minneapolis] was introduced amid great fanfare on this date. Built to withstand winds of up to 140 miles per hour, it survived hurricane-force gales just three days after it began operating.” The jingle that referred to the weatherball went like this:

“When the Weatherball is glowing red, warmer weather's just ahead.

When the Weatherball is shining white, colder weather is in sight.

When the Weatherball is wearing green, no weather changes are foreseen.

Colors blinking by night and day say, precipitation's on the way.”

http://suzannesselections.blogspot.com/2010/07/northwestern-national-bank-weatherball.html

http://upload.wikimedia.org/wikipedia/en/d/d3/Northwestern_Banks_weatherball_logo_1970s.JPG