This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TODAY AND TONIGHT... Tonight, there is a chance that dense fog may form in the area, favoring Eastern Colorado. Be alert for visibility below a quarter of a mile. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... Wednesday morning, any dense fog that formed could persist into the mid-morning hours. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any dense fog observed.