The above image shows 70mb values from 2011 and 2012. The green dashed line displays average stratospheric values for that time of year. If we look at the most recently observed line in the stratosphere, we see that significant warming has occurred, with a sharp spike in temperatures now being observed.
While the stratosphere is so high up in the atmosphere, it does have significant implications on our weather now. What the warming stratosphere does is it weakens the polar vortex, which, when the vortex is strong, can restrict cold air from the US. Now that a SSW is occurring, the polar vortex is weakening, and a stronger push of cold air south should begin. However, the presence of the ongoing ridge over the Bering Sea (and the ECMWF's idea of said polar vortex restrengthening over Canada) tells me to be cautious of any incoming cold weather calls.