Alert archive / Illinois / Excessive Heat Warnings
Excessive Heat Warnings in Illinois, 2015
3 excessive heat warnings in 2015. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of excessive heat warnings reaches back to 2005.
Excessive Heat Warnings by county
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Excessive Heat Warnings
- 3
- Busiest month
- July3 excessive heat warnings
- Busiest day
- July 27, 20152 excessive heat warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 2:20 PM CDT | Excessive Heat Warning | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 6 hr |
| Jul 27, 1:56 PM CDT | Excessive Heat Warning | PAH | Alexander, Franklin, Jackson, Jefferson, Johnson, Massac and 4 more | 53 hr |
| Jul 27, 3:40 PM CDT | Excessive Heat Warning | LSX | Calhoun, Clinton, Jersey, Madison, Marion, Monroe and 3 more | 48 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bureau County1
- Hancock County1
- Henderson County1
- Henry County1
- McDonough County1
- Mercer County1
- Putnam County1
- Rock Island County1
- Warren County1
- Alexander County1
- Franklin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry County1
- Pulaski County1
- Union County1
- Williamson County1
- Calhoun County1
- Clinton County1
- Jersey County1
- Madison County1
- Marion County1
- Monroe County1
- Randolph County1
- Saint Clair County1
- Washington County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.