If we had the current/forecasted indices during the winter, we'd be in business. +PNA, -NAO, and -AO.
https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/teleconnections.shtml
I suppose it can still help keep troughs in the east (..which is forecasted), but the farther into spring we get the less south they can push.