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

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990
WWUS73 KLSX 260842
NPWLSX

URGENT - WEATHER MESSAGE
National Weather Service St Louis MO
342 AM CDT Thu Jun 26 2025

ILZ099>102-MOZ061-063>065-262345-
/O.EXA.KLSX.HT.Y.0001.000000T0000Z-250627T0200Z/
Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Belleville, Edwardsville, Alton, Saint
Louis, Cahokia, and Saint Charles
342 AM CDT Thu Jun 26 2025

...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...Heat index values up to 102.

* WHERE...In Illinois, Jersey IL, 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 9 PM CDT this evening.

* 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.

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.

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.

&&

$$

ILZ058>060-064-065-069-070-074-079-095>098-MOZ036-048>052-059-060-
062-072>075-084-085-099-262345-
/O.CON.KLSX.HT.Y.0001.000000T0000Z-250627T0200Z/
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-Pike 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 Washington, Sparta, Centralia, Chester,
Union, Vandalia, Quincy, Fulton, Pittsfield, Sullivan,
Farmington, Salem, Mount Sterling, Jefferson City, Litchfield,
and Bowling Green
342 AM CDT Thu Jun 26 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...Heat index values up to 101.

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

* WHEN...Until 9 PM CDT this evening.

* 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.

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.

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.

&&

$$

Gosselin