This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TODAY AND TONIGHT... A Dense Fog Advisory is in effect until 10 AM MDT, 11 AM CDT this morning for portions of the area, mainly along and north of Interstate 70 in northeast Colorado and far northwest Kansas. Drivers are urged to exercise caution. Slow down, use low beam headlights and leave plenty of following distance. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any significant weather conditions.