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Active official alertUpdated

Extreme Heat Warning for Greene; Macoupin; Montgomery +36 more

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What you need to know

Applies to
Adams, Bond, Brown, Calhoun, Clinton, Fayette, Greene, Jersey and 38 more
Effective
Ends or expires
Official severity
Severe
Official urgency
Expected
Official certainty
Likely

What is happening

What: Dangerously hot conditions with heat index values up to 107. Impacts: Heat related illnesses increase significantly during extreme heat and high humidity events. Where: Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. When: Until 8...

What the bulletin says to do

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.

Full official description

Bulletin details

* WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

2 captured
  1. Alert

    Extreme Heat Warning issued September 3 at 12:12AM CDT until September 5 at 8:00PM CDT by NWS St Louis MO

    Official revision
  2. Alert

    Extreme Heat Warning issued September 3 at 12:12AM CDT until September 5 at 8:00PM CDT by NWS St Louis MO

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS St Louis MO. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections