Headline:
Heat Advisory issued July 18 at 3:04AM CDT until July 21 at 7:00PM CDT by NWS St Louis MO
Event:
Heat Advisory
Urgency:
Expected
Effective:
July 18, 2026 - 1:04am
Expires:
July 18, 2026 - 4:15pm
Description:
* WHAT...Heat index values up to 105 expected.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From noon today to 7 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Instruction:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time
outside. When possible reschedule strenuous activities to early
morning or evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational Safety
and Health Administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Area Description:
Clinton; Washington; Randolph; Madison; St. Clair; Monroe; Boone; Moniteau; Cole; Osage; Callaway; Montgomery; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds
Forcast Office:
NWS St Louis MO
Sender:
w-nws.webmaster@noaa.gov