On days like today the atmospheric sciences department cancels classes and graduate students abandon work. Students lined up against the window of the 8th floor conference room in the William Browning Building today as a massive cold front, the strongest one in years, approached. The cold front hit the University of Utah at 11:35. Temperatures dropped 20 degrees in fifteen minutes.
Notice the crane turned to the north. This is before the frontal passage with winds still strong from the south.