This just blows me away. It can't be real... Can it? Negative fahrenheit numbers below the lakes? https://www.tropicaltidbits.com/analysis/models/?model=gfs®ion=us&pkg=T2m&runtime=2017120300&fh=384&xpos=0&ypos=142.5 18th www.tropicaltidbits.com/analysis/models/gfs/2017120300/gfs_T2m_us_52.png