NAM AIR QUALITY DIAGNOSTIC DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
956 AM EDT WED AUG 24 2011
 

*** 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). ***


...CALIFORNIA...

NO MAJOR ISSUES WITH THE 12Z NAM INITIALIZATION

...OHIO/TENNESSEE VALLEYS...

NO MAJOR ISSUES WITH THE 12Z NAM INITIALIZATION

...MID-ATLANTIC...

NO MAJOR ISSUES WITH THE 12Z NAM INITIALIZATION

...LOWER MISSISSIPPI VALLEY/SOUTHERN PLAINS...

NO MAJOR ISSUES WITH THE 12Z NAM INITIALIZATION

GARRETT

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