Extreme Heat Warning issued June 21 at 8:59PM CDT until June 24 at 12:00AM CDT by NWS Chicago IL

* WHAT…Dangerously hot and humid conditions with high temperatures
each day well into the 90s and peak afternoon heat index values
between 100 and 107 degrees expected.

* WHERE…Central Cook, Northern Cook, and Southern Cook Counties.

* WHEN…Until midnight CDT Monday Night.

* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events. The magnitude of
anticipated heat, combined with oppressive warmth at night will
lead to hazardous conditions, particularly for the elderly and
those with pre-existing health conditions. Residents of the city
of Chicago can call 3 1 1 to request well being checks for elderly
friends or family members, or for information on finding the
nearest cooling center.

* ADDITIONAL DETAILS…Heat indices will likely remain in the 90s
late into the evening hours with overnight lows possibly
struggling to fall much below 80 degrees.