NAM AIR QUALITY DIAGNOSTIC DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
1007 AM EDT TUE JUN 26 2012


*** The following information pertains to initialization errors
noted on the 12Z NAM that may negatively impact the performance of
the 12Z CMAQ output as used for air quality forecasting.
Specifically, errors that apply to temperature, winds, relative
humidity and precipitation are included. This discussion only
applies to geographical regions of the CONUS where air quality is
currently forecast to be degraded (i.e. CODES:
YELLOW/ORANGE/RED/PURPLE/MAROON). ***


...LOWER COLORADO VALLEY...

NO SIGNIFICANT INITIALIZATION ERRORS WERE NOTED WITH THE NAM IN
THIS REGION.


...FRONT RANGE OF COLORADO...

NO SIGNIFICANT INITIALIZATION ERRORS WERE NOTED WITH THE NAM IN
THIS REGION.


...OKLAHOMA...
...ARKANSAS...
...WESTERN GULF STATES...

NO SIGNIFICANT INITIALIZATION ERRORS WERE NOTED WITH THE NAM IN
THESE REGIONS.


...TENNESSEE VALLEY...

NO SIGNIFICANT INITIALIZATION ERRORS WERE NOTED WITH THE NAM IN
THIS REGION.


CISCO