... Excessive heat warning remains in effect until 8 PM CDT
* heat index values... up to 109 due to temperatures in the upper
90s, and dewpoints in the lower 70s.
* Timing... continuing through early Saturday evening.
* Temperature... highs each afternoon will be in the mid to upper
* Impacts... dangerously high temperatures and humidity could
quickly cause heat stress or heat stroke if precautions are
not taken. The very Young, the elderly, those without air
conditioning, and those participating in strenuous outdoor
activities will be the most susceptible. Also, car interiors
can reach lethal temperatures in a matter of minutes.
An excessive heat warning means that a prolonged period of
dangerously hot temperatures and high humidity will occur. In
addition, nighttime conditions will remain warm and muggy
providing little chance for relief. This combination will create
a dangerous situation in which heat-related illnesses are likely,
especially for those living in un-air conditioned homes or
apartments. People in the warning area are advised to avoid
poorly ventilated areas and prolonged work in the sun. Use air
conditioning in your house or apartment if it is working
correctly. If you do not have air conditioning, keep your house
or apartment well ventilated with fans, and try to spend some
time in an air conditioned environment to give your body a break
from the heat.
People in the Saint Louis metropolitan area can get information
about cooling centers or energy assistance related to the
excessive heat by calling the United way of greater Saint Louis
at 800-427-4626, or if calling from a land line phone dial 2-1-1.
You can also call cool down Saint Louis at 314-241-7668.
Severe Weather Get Mobile & Email Alerts
Boone Severe Watches & Warnings NOAA Weather Radio
Watches & Warnings
Excessive Heat Warning
Issued: 3:35 AM CDT Jul. 19, 2019 – National Weather Service