this fashion is relatively common in the cool season along the Texas Gulf Coast and along the Atlantic Seaboard near the Gulf Stream current. From October 30 – 31, this low-pressure system slowly became better organized over Texas, before it ejected north over the Mississippi River Valley. This meridional trajectory of a low pressure track (almost due north from the western Gulf) is climatologically favorable to produce very heavy snowfall in the winter months because it allows copious amounts of moisture to flow north where it can interact with colder air. Cooler readings lingered at the very end of October across the Upper Midwest, and a re-enforcing pool of Arctic air was just beginning to push southeast through the western Canadian Provinces. On November 1, the low-pressure system moved north from western Illinois into the Upper Peninsula of Michigan and the minimum pressure fell about 24 millibars in 24 hours, indicative of rapid deepening and strengthening of the cyclone. The low pressure eventually became occluded, weakened, and then continued to dissipate as it pushed east across northern Ontario in subsequent days. Precipitation The precipitation from this system began falling as snow in Iowa late on October 30, and by the morning of October 31, it had changed over to ice and spread northward across southeast Minnesota. During Halloween day, the precipitation spread to the north, where it fell mostly as rapidly accumulating snow. The snow continued to develop northward, eventually spreading into the Minnesota Arrowhead. Eventually all of the precipitation changed over to snow, and in some areas it would continue falling until November 3. Snow The heavy snow began falling across east central Minnesota and northwest Wisconsin during the late afternoon hours of October 31. By midnight, the Twin Cities had already recorded 8.2 in (20.8 cm) of snow. This not only set a record for the largest amount of snow on that date, but also for the most snow ever recorded in the Twin Cities during the month of October. As the storm system pushed its way northward, more communities in eastern Minnesota and northwestern Wisconsin began to experience similar conditions; and thundersnow occurred as far north as Duluth. Over the next two days the snow continued to fall, leading to additional snowfall of one to two feet (30 cm to 60 cm). By the time the snowfall ended on November 3, the storm had dropped 36.9 in