The NAM CONUS Nest (NAM v4 ) is being upgraded to a 3km resolution and the parallel run is now available at Wright-Weather.com
In addition to higher spatial resolution, going from 4km to now 3km, the parallel version is now available hourly to 60 hours. The current operational version only provides hourly data to 36 hours.
The parallel data will be made available until at least February 1st when the NAM v4 is expected to become the operational NAM model. If in testing problems arise, it may get delayed, going operational, extending the parallel testing period.
Here is the link to the parallel NAM 3km CONUS model.