Full Notification

.1146 AM CDT Tue Sep 1 2026 /1246 PM EDT Tue Sep 1 2026/

...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM CDT /9 PM EDT/
SATURDAY...

* WHAT...Dangerously hot conditions with peak daily heat index values
103 to 109 degrees; actual maximum air temperatures will range from
95 to 101 degrees daily!

* WHERE...All of southern Illinois, southwest Indiana, western
Kentucky, and southeast Missouri.

* WHEN...Until 8 PM CDT /9 PM EDT/ Saturday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

* ADDITIONAL DETAILS...This week of extreme and dangerous heat shows
no signs of abating. Climatologically extreme high forecast
temperatures a good 10 to 15 degrees above their seasonal normals
will combine with the effects of humidity to increasingly make this
week a dangerous period of prolonged heat. Heat index values hit
triple digits every day and may top out up to 109 degrees. Actual
air temperatures reach to near or even above 100 degrees multiple
days in a row. Numerous nights might have warm record overnight low
temperatures in the mid 70s as well, so there is really no
significant break offered from the heat as we head into the holiday
weekend and all the numerous activities and outdoor events that may
be planned.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

Stay cool, stay hydrated, stay informed.

Instructions:

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