A active and cold Mid-Jan/Feb...

[WxMidwest20]

The NAO is expected to go positive this week and will bring some unseasonable mild pacific air into the U.S. with some rain later this week across the Plains/Great Lakes. However as we head into mid-January, the NAO is expected to take a dive again and bring colder air back into the central U.S. and the EPO is forecasted to go negative which will allow for a more amplified trough across the central and eastern U.S. and a increase storm track up the Great Lakes/Ohio Valley much like we have been seeing for most of December.

NAO forecast:
http://www.cpc.noaa.gov/products/precip ... _ensm.html

CPC 10 day precipatation anomoly is indicating a very wet pattern across the central U.S.
http://www.cpc.ncep.noaa.gov/products/p ... cp.new.gif