NOUS75 KSLC 052119
ADMSLC
ADMINISTRATIVE MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
217 PM MDT THU JAN 5 2012
PLEASE FORWARD THIS TO YOUR SOO OR IFPS FOCAL POINT...
THE 12Z NAM THAT WAS SHIPPED OVER THE SBN THIS MORNING HAS NULL 
DATA IN THE 0-HR FORECAST FOR DEW POINT AND WIND. THIS MAY HAVE 
CREATED POOR OBS GRIBS FOR THE 12Z-15Z TIME FRAME TODAY IF YOU ARE 
USING THE NAM12 AS THE BACKGROUND FIELD. 
IF THIS IS THE CASE, YOU WILL WANT TO CHANGE THE BACKGROUND MODEL IN 
YOUR MATCHOBSALL SMART TOOL TO GFS40 THIS AFTERNOON SO THAT THE OBS 
GRIDS WILL BE RE-RUN WITH A REASONABLE BACKGROUND FIELD. OTHERWISE, 
THE POOR DEW POINT OBS GRIDS WILL CONTAMINATE FUTURE BIAS CORRECTION 
CALCULATIONS.
IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT KEN POMEROY AT WRH SSD 
(801-524-5131).