This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TONIGHT... Fog is forecasted to develop across the majority of the area Saturday morning. Dense fog is possible leading to dramatic reductions of visibility impacting travel. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY... An isolated severe storm is possible late afternoon and evening on both Saturday and Sunday. The areas of focus at this time are locales west of a line from McCook, Nebraska down to Cheyenne Wells, Colorado. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.