This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TODAY AND TONIGHT... There is a chance for thunderstorms to impact areas mainly along and east of Highway 83 this afternoon. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY... Thunderstorms may form Tuesday afternoon and evening over the Tri- State Area as a strong cold front moves through. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected today or tonight.