This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TONIGHT... Severe thunderstorms capable of producing very large hail and damaging winds are possible across portions of the Tri-State area this evening and overnight, mainly along and south of Interstate 70 between 8 PM and 3 AM MDT. Storms are anticipated to develop in eastern Colorado this evening, tracking east southeast into western Kansas overnight. Locally heavy rainfall and isolated flash flooding are possible, especially in areas recently or repeatedly affected by thunderstorms. A fair amount of uncertainty persists with regard to thunderstorm development, coverage and longevity. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH THURSDAY... Late afternoon and evening thunderstorms will persist through early next week. Isolated severe storms, locally heavy rainfall and isolated flash flooding are possible on any given day. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any severe or significant weather to the National Weather Service in Goodland via telephone or social media.
