On November 19, 1981, a rapid accumulation of over a foot of snow caused the roof to collapse, requiring it to be re-inflated. It deflated the following winter on December 30, 1982, again because of a tear caused by heavy snow. This was four days before the Vikings played the Dallas Cowboys in the last regular-season game of the 1982 NFL season. In the spring following that same winter, on April 14, 1983, the Metrodome roof deflated because of a tear caused by late-season heavy snow, and the scheduled Twins' game with the California Angels were postponed. On April 26, 1986, the Metrodome roof suffered a slight tear because of high winds, causing a nine-minute delay in the bottom of the seventh inning versus the Angels; however, the roof did not deflate.