TOPEKA, Kan. (AP) - Extreme heat conditions are continuing across Kansas as drought conditions continue to worsen with little relief in sight. The National Weather Service is issuing excessive heat advisories and heat warnings throughout the state with temperatures forecast Tuesday to be above the 100-degree mark. The July 17 U.S. Drought Monitor had 64 percent of Kansas experiencing extreme drought. Gov. Sam Brownback is resuming his tour of drought-stricken areas of northwest Kansas to see the damage wrought by the drought and heat. Brownback visited central and southeastern Kansas last week. The governor is seeking expansion of a federal disaster declaration that would cover 103 of 105 Kansas' counties. The declaration allows farmers and ranchers to be eligible for federal programs to cope with the loss of agriculture production related to the drought.