Steady temperature fall—then more snow

Chicago came up one degree short of the record high Saturday, when the O’Hare thermometer topped out at 55. Several locations in Minnesota, Wisconsin, and Michigan set new record highs, among them Green Bay, Wisc. (50), MInneapolis (51) and International Falls, Minn. (49), and Traverse City, Mich. (55). Even Marquette, Mich. got into the act, hitting a record 50° high with two feet (actually 23 inches) of snow covering the ground! However as clouds gather and thicken temperatures in Chicago start a slow decline, and rain moves into the area later today. Readings will slowly fall through the 40s and later Monday rain will become mixed with and changeover to snow. Snowfall is dependent upon the uncertain track of low pressure centers Tuesday and Wednesday—the further south the low centers, the shorter the duration and intensity of the snow. A more northwesterly Jet stream flow aloft should steer clearing high pressure into the Great Lakes later this week.