The early season snow cover across the northern hemisphere is ahead of schedule in Mongolia, far Northeast China, and Southern Russia. Alaska and Canada have below normal snow cover for mid-October although a recent streak of snow was observed across parts of the Canadian Prairies. As usual, early season expansive snow cover encouraged a much colder than normal air mass to evolve across Northeast Eurasia featuring 5-day temperature anomalies of 20-30F below normal.

ECM projects the Greenland Block to continue and finally produce cool troughs into the Ohio Valley/Mid-Atlantic States and Northwest Eurasia late this month into early November. Expect a cooler U.S. pattern especially in the East, as November approaches.