Excessive Heat and Heat in Illinois, July 29 to 31, 2024

Name: Excessive Heat and Heat in Illinois, July 29 to 31, 2024
Start: 2024-07-29T11:00
End: 2024-07-31T23:59
Location: Illinois

July 29 to 31, 2024 · NWS PAH · 21 events in 19 counties and zones

Where it happened

Every event with a place to put it; 21 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 21

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PAH wrote it up.

Portions of Southern Illinois reached heat indices of 104-109F on the 29th, with more widespread heat indices of 105-116F on the 30th and 31st, extending into the start of August. Dew points reached the upper 70s on the 30th and 31st. The highest heat index reached in Southern Illinois was 116F at the Dixon Springs RAWS site on the 30th. Mid to late afternoon severe thunderstorms interrupted the heat on the 30th.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Paducah, KY wrote its last area forecast discussion before the first event at Jul 29, 1:28 AM CST, 9 hours 32 minutes earlier.

Area forecast discussion, Jul 29, 1:28 AM CST, 9 hours 32 minutes before

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Hazardous weather outlook, Jul 29, 2:06 AM CST, 8 hours 54 minutes before

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In the hours before

Special weather statement, Jul 29, 8:53 AM CST, 2 hours 7 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

15 excessive heat, 6 heat. Local standard time, as filed.

Excessive Heat, Alexander

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Alexander forecast zone
Reported by: AWOS
Coordinates: 37.192, -89.338 (the zone’s center; the record gives no point)

Excessive Heat, Pulaski

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Pulaski forecast zone
Reported by: AWOS
Coordinates: 37.223, -89.127 (the zone’s center; the record gives no point)

Excessive Heat, Pope

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Pope forecast zone
Reported by: RAWS
Coordinates: 37.413, -88.562 (the zone’s center; the record gives no point)

Excessive Heat, Hardin

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Hardin forecast zone
Reported by: AWOS
Coordinates: 37.518, -88.267 (the zone’s center; the record gives no point)

Excessive Heat, Williamson

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Williamson forecast zone
Reported by: AWOS
Coordinates: 37.730, -88.930 (the zone’s center; the record gives no point)

Excessive Heat, Saline

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Saline forecast zone
Reported by: AWOS
Coordinates: 37.753, -88.541 (the zone’s center; the record gives no point)

Excessive Heat, Gallatin

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Gallatin forecast zone
Reported by: AWOS
Coordinates: 37.763, -88.230 (the zone’s center; the record gives no point)

Excessive Heat, Franklin

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Franklin forecast zone
Reported by: AWOS
Coordinates: 37.992, -88.924 (the zone’s center; the record gives no point)

Excessive Heat, Jefferson

When: July 29, 11:00 AM CST to July 31, 11:59 PM CST
Where: Jefferson forecast zone
Reported by: AWOS
Coordinates: 38.301, -88.924 (the zone’s center; the record gives no point)

Heat, Edwards

When: July 30, 11:00 AM CST to July 31, 6:00 PM CST
Where: Edwards forecast zone
Reported by: AWOS
Coordinates: 38.417, -88.053 (the zone’s center; the record gives no point)

Heat, Wayne

When: July 30, 11:00 AM CST to July 31, 6:00 PM CST
Where: Wayne forecast zone
Reported by: AWOS
Coordinates: 38.430, -88.426 (the zone’s center; the record gives no point)

Heat, Perry

When: July 30, 11:00 AM CST to 6:00 PM CST
Where: Perry forecast zone
Reported by: AWOS
Coordinates: 38.084, -89.367 (the zone’s center; the record gives no point)

Heat, Jackson

When: July 30, 11:00 AM CST to 6:00 PM CST
Where: Jackson forecast zone
Reported by: ASOS
Coordinates: 37.785, -89.382 (the zone’s center; the record gives no point)

Heat, Massac

When: July 30, 11:00 AM CST to July 31, 11:59 PM CST
Where: Massac forecast zone
Reported by: AWOS
Coordinates: 37.219, -88.708 (the zone’s center; the record gives no point)

Excessive Heat, Hamilton

When: July 30, 11:00 AM CST to July 31, 6:00 PM CST
Where: Hamilton forecast zone
Reported by: AWOS
Coordinates: 38.082, -88.539 (the zone’s center; the record gives no point)

Excessive Heat, White

When: July 30, 11:00 AM CST to July 31, 6:00 PM CST
Where: White forecast zone
Reported by: AWOS
Coordinates: 38.088, -88.180 (the zone’s center; the record gives no point)

Excessive Heat, Union

When: July 30, 11:00 AM CST to July 31, 11:59 PM CST
Where: Union forecast zone
Reported by: AWOS
Coordinates: 37.471, -89.255 (the zone’s center; the record gives no point)

Excessive Heat, Johnson

When: July 30, 11:00 AM CST to July 31, 11:59 PM CST
Where: Johnson forecast zone
Reported by: AWOS
Coordinates: 37.460, -88.881 (the zone’s center; the record gives no point)

Heat, Wabash

When: July 31, 11:00 AM CST to 11:59 PM CST
Where: Wabash forecast zone
Reported by: AWOS
Coordinates: 38.446, -87.844 (the zone’s center; the record gives no point)

Excessive Heat, Perry

When: July 31, 11:00 AM CST to 6:00 PM CST
Where: Perry forecast zone
Reported by: AWOS
Coordinates: 38.084, -89.367 (the zone’s center; the record gives no point)

Excessive Heat, Jackson

When: July 31, 11:00 AM CST to 6:00 PM CST
Where: Jackson forecast zone
Reported by: ASOS
Coordinates: 37.785, -89.382 (the zone’s center; the record gives no point)

What these are

Excessive Heat: Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
Heat: Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Illinois in 2024 Every state in 2024 This day in weather history Warnings in Illinois, July 2024

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1202771, 1202772, 1202773, 1202774, 1202775, 1202776, 1202777, 1202778, 1202779, 1202760, 1202761, 1202762, 1202763, 1202764, 1202765, 1202766, 1202767, 1202768, 1202759, 1202769, 1202770.