Special Weather Statement issued July 11 at 3:34PM CDT until July 12 at 9:00PM CDT by NWS
Effective: 3:34 p.m. on Tuesday, July 11, 2017
Expires: 9 p.m. on Wednesday, July 12, 2017

...Heat Index Values to hover near 100 degrees Wednesday and
Thursday afternoon...
Increasing humidity near 50 percent, combined with temperatures in
the lower to middle 90s, will produce heat index values between
100 and 103 degrees Wednesday and Thursday afternoon.
For those persons that must work outdoors, be sure to keep
hydrated with water and take frequent breaks in the shade or an
air-conditioned shelter. This will help lessen the impact on your
health during prolonged exposure to the heat.
Keep a close eye on children, persons with serious health
conditions, and pets. They can be especially susceptible to the
summer heat.
Never leave a child or pet in a car unattended and with the
windows closed without air-conditioning, this can be deadly for
them in a very short time.
Although rain chances and more cloud cover is expected to return
on Thursday, heat index values will once again rise to around 100
degrees outside rain areas.
Some relief from the heat is expected on Friday, with temperatures
expected to drop back into the 80s with a chance of rain.

See more at NOAA