Excessive Heat, Randolph
- When
- July 21, 12:00 PM CST to July 23, 8:00 PM CST
- Where
- Randolph forecast zone
- Reported by
- AWOS
- Coordinates
- 38.052, -89.825 (the zone’s center; the record gives no point)
Excessive Heat in Illinois, July 21 to 23, 2017
An excessive heat wave hit southwest Illinois July 21 through July 23. High temperatures were around 100 degrees with the heat index from 105 - 110.
Where it happened
Every event with a place to put it; 1 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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 LSX wrote it up.
An excessive heat wave hit southwest Illinois July 21 through July 23. High temperatures were around 100 degrees with the heat index from 105 - 110.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 excessive heat. Local standard time, as filed.
What these are
- Excessive Heat
- Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Flooding in Iowa, July 21 to 23, 2017
- Tornado and Flash Flooding in Illinois, July 21 to 24, 2017
- Lightning Strike in Alabama, July 21, 2017
- Flash Flood and Flooding in Wisconsin, July 21 to 22, 2017
- Flooding in Illinois, July 21 to 31, 2017
- Flash Flood and Flooding in Illinois, July 21 to 22, 2017
- Tornado and Hail in North Dakota, July 21, 2017
- Excessive Heat in Oklahoma, July 21 to 23, 2017
- Tornadoes and Hail in Minnesota, July 21 to 22, 2017
- Flash Flood in Wisconsin, July 21 to 22, 2017
- Flash Flooding and Flooding in New Jersey, July 21 to 24, 2017
- Damaging Winds in Ohio, July 21, 2017
More
Every storm in Illinois in 2017Every state in 2017This day in weather historyWarnings in Illinois, July 2017
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: 716213.