This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TONIGHT... No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH TUESDAY... Wednesday, heat index values around 105 are expected for Gove, Graham, and Sheridan counties. A Heat Advisory remains in effect for the afternoon for these counties. Isolated strong to severe thunderstorms may develop as early as late morning Wednesday, lasting as late as the early evening. These storms may form east of a McCook to Hoxie and Leoti line. Wind gusts up to 70 MPH will be the main threat. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected tonight.