This study investigates the inter‐model spread of climatological extratropical westerly jets in boreal winter, using the historical simulation of 52 Coupled Model Intercomparison Project phase 6 (CMIP6) models from 1851 to 2014. The results show that there is a substantial spread in the latitude of the upper‐tropospheric westerly jet across models, characterised by large inter‐model standard deviations to both the poleward and...

Northern East Asia ( NEA ) is characterized by wet monsoon region in the east and mid‐latitude westerly‐controlled dry inland in the west in summer, where ecosystem and environment are vulnerable to rainfall variability. Previous studies found close relationship between summer rainfall in NEA and local large‐scale atmospheric circulation systems including East Asian upper‐tropospheric westerly jet ( EAJ ) and middle‐tropospher...

Previous studies have shown that during summer there is a meridional teleconnection over the western North Pacific and East Asia (WNP‐EA) on the interannual time scales. This meridional teleconnection is characterized by the zonally elongated circulation anomalies with alternate signs in the meridional direction over this region. The present study indicates that there is a significant change in the early‐summer meridional tele...