Despite its nickname, Chicago is not the windiest major metropolitan area in the United States: That distinction actually belongs to Boston. Sunday surely lived up to the billing as the wind gusted ferociously around campus. A weather station on the top of the Green Building clocked a wind gust of 62 mph (100 kph) just after 4 p.m. Associated with this gust was a intense snow squall that also produced a short bout of lightning and thunder. This fickle weather was associated with an arctic front that blasted through the area dropping temperatures quicker than a piano falling from Baker House freezing any wet surface from earlier in the day.