ECMWF/GFS Showing Polar Vortex Breaks, Cutoff Low Pattern to Return in Southwest
Both the 12z ECMWF and 12z GFS are showing a break in the polar vortex- a significant development that may lead to the much-anticipated pattern change. Another thing we're seeing in these 8-10 day height anomaly outlooks are trough patterns in the Southwest as well as offshore the Southeast. This means that the cutoff low pattern may return to the Southwest and bring some snowy weather to the Plains. Possibly. A lot has to be determined, but it does match up with my theory of cutoff lows returning.