With an easterly QBO, phase 5 into 6 MJO, La Nina and perturbed polar vortex and reflective high latitude blocking underneath, many things point to a prolonged spell of cooler than average pattern on both sides of the pond.

GFS ensemble shows the blocky pattern maintaining. Check out the 500mb height anomaly 5-day means.

2m temp anomaly 5-day mean

Tags: AO, east QBO, nao, polar vortex