Non-Precipitation Warnings / Watches / Advisories
Issued by NWS St. Louis, MO

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818
WWUS73 KLSX 010822
NPWLSX

URGENT - WEATHER MESSAGE
National Weather Service St Louis MO
322 AM CDT Tue Sep 1 2026

ILZ058>060-064-065-069-070-074-079-095>099-MOZ018-019-026-027-
034>036-041-042-047>052-059-060-062-072>075-084-085-099-012330-
/O.CON.KLSX.HT.Y.0008.000000T0000Z-260905T0100Z/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage
MO-Callaway MO-Montgomery MO-Lincoln MO-Gasconade MO-Warren MO-
Franklin MO-Crawford MO-Washington MO-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Bowling Green, Mexico, Farmington, Vandalia,
Quincy, Chester, Salem, Union, Pittsfield, Jefferson City, Sullivan,
Centralia, Litchfield, Columbia, Mount Sterling, Fulton, Sparta,
Hannibal, and Washington
322 AM CDT Tue Sep 1 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT FRIDAY...

* WHAT...Heat index values up to 105.

* WHERE...Portions of south central, southwest, and west central
  Illinois and central, east central, northeast, and southeast
  Missouri.

* WHEN...Until 8 PM CDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

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.

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.

&&

$$

ILZ100>102-MOZ061-063>065-012330-
/O.CON.KLSX.HT.Y.0008.000000T0000Z-260905T0100Z/
Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-Saint Louis
MO-Saint Louis City MO-Jefferson MO-
Including the cities of Cahokia, Belleville, Alton, Saint Charles,
Edwardsville, and Saint Louis
322 AM CDT Tue Sep 1 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT FRIDAY...

* WHAT...Heat index values up to 108.

* WHERE...In Illinois, Madison IL, Monroe IL, and Saint Clair IL
  Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis
  City MO, and Saint Louis MO Counties.

* WHEN...Until 8 PM CDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

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. 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.

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.

&&

$$

Britt