Heat Advisory issued June 17 at 3:17AM CDT until June 17 at 8:00PM CDT by NWS

...DANGEROUS HEAT CONTINUES TODAY... .A RIDGE OF HIGH PRESSURE ALOFT WILL PERSIST OVER THE CENTRAL PART OF THE COUNTRY...BRINGING UNSEASONABLY HOT TEMPERATURES. THIS HEAT COMBINED WITH OPPRESSIVE HUMIDITY WILL CREATE CONDITIONS CONDUCIVE TO SEVERE HEAT STRESS ON THE BODY FOR ANY OUTDOOR ACTIVITIES.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/1USfOAO