This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...THIS AFTERNOON AND TONIGHT... A Flood Warning is in effect through this afternoon for Wallace County in northwest Kansas due to recent rainfall causing possible flood conditions. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY... There is a Marginal Risk for severe thunderstorms on Wednesday across most of the area. Large hail and damaging winds will be possible near stronger storms. Thunderstorms chances continue into Thursday and Friday. Severe storms will be possible both days. Excessive rainfall will be a concern beginning on Wednesday and continuing through Friday. Repeated rounds of thunderstorms, in addition to recent heavy rainfall, will lead to a risk for flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required.