The 1km MODIS-VIIRS 11micron product valid 0932UTC January 6, 2013 showed very high resolution temperature inversion patterns across northern NM and southern CO. The 11micron product is overlaid with the surface observation network across the area on the graphicast example below. High resolution details are captured well by the temperature observation network…including a well defined warm region where Ute Mountain sits within the San Luis Valley south of Alamosa. Minimum temperatures are ingested into GFE to provide fine resolution details for the following nights forecast in persistence. The black outlines in the temperature grid are public zone boundaries which capture the general topography quite well and focus where colder valley temperatures would occur. The maximum temperature forecast also captures these strong inversion effects where weak mixing forces high temperatures to be warmer over mid slope areas than in valley areas. While no major operational impact outside of improved high temperature forecasts is expected, it would be interesting to see how the extent of the cold pool over southern CO impacts the strength of drainage winds in the Rio Grande Valley for airport locations from Taos south to Santa Fe and Albuquerque.