This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TONIGHT... Isolated severe storms are possible this evening, mainly along and north of Interstate 70 in Kansas and Nebraska between 6 PM and 9 PM MDT. Golf ball size hail and wind gusts up to 70 mph are the primary severe weather hazards. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY... A prolonged period of much above normal temperatures over 100 degrees are forecast Monday through Thursday. Heat index values of 100 to 105 degrees are anticipated Monday with 100 to 110 degrees on Tuesday and Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.