WPC disco
Early next week, the eastern trough will track further offshore while another trough/low pushes into the north-central U.S./south-central Canada. There are some variations in timing and depth of these lows, but nothing too egregious for the medium range period. This upper low tracking into the central U.S. may dig a bit by Monday-Tuesday as it shifts into the Great Lakes region while ridging amplifies behind in the Interior West. The odds are becoming better that this will promote consolidation of another East Coast surface low, but again with considerable spread in the ensemble mean.