The fly in the ointment...
Nice analysis from GRR:
Impact of Tropical Storm Rai (west Pacific) on our weather for
next week
As it turns out, Tropical Storm Rai, in the western Pacific is
heading due west toward the Philippine Islands. It should become
a typhoon by this evening. Why to we care about this in Michigan?
As it turns out, it will have a major impact our weather for the
next week. What this does is it stalls the MJO on the edge of
phase 6 to phase 7 since in phase 7. In phase 7 the area near the
Philippines should be dry. That changes the entire northern
hemispheric wave train. It will delay the arrives of the really
cold air till after Christmas (we need a solid phase 7 for that
cold air to get here).
This means largely zonal flow for our area for the next week.
That will prevent any strong pushes of cold air and also not allow
the much phasing with the next two storm systems that follow the
Thursday event.