This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...THIS AFTERNOON AND TONIGHT... Fog, possible dense, will develop over much of the region this evening and overnight. This includes the Interstate 70 corridor in eastern Colorado and northwest Kansas. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY... A Winter Storm Warning is in effect for Norton and Graham counties, beginning at noon CST Saturday and ending at 6 PM CST Sunday. A Winter Weather Advisory is in effect this weekend for Red Willow county in Nebraska and Rawlins, Decatur, Thomas, Sheridan, Logan, Gove and Wichita counties in Kansas, beginning at noon CST Saturday and ending at 6 PM CST Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.