Conditions in the South Pacific during the La Nina phase of ENSO, in comparison to the neutral phase of ENSO, include (choose all that apply):
1) Upwelling on the west coast of South America is stronger
2) Easterly trade winds are stronger
3) Air pressure patterns are in the normal direction
4) Sea surface temperatures in the Eastern Pacific are cooler
5) The prevailing rain pattern shifts east to the Central Pacific
6) Sea surface temperatures in the Eastern Pacific are warmer