Alert archive / Illinois / Heat Advisories
Heat Advisories in Illinois, 2017
16 heat advisories in 2017. 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Heat Advisories
- 16
- Busiest month
- July14 heat advisories
- Busiest day
- July 12, 20173 heat advisories
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 |
|---|---|---|---|---|
| Jun 13, 10:42 AM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 9 hr |
| Jul 10, 4:04 AM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 10 more | 4 days |
| Jul 10, 2:20 PM CDT | Heat Advisory | DVN | Hancock, Henderson, McDonough, Mercer, Warren | 5 hr |
| Jul 11, 11:25 AM CDT | Heat Advisory | DVN | Hancock, Henderson, McDonough, Mercer, Warren | 9 hr |
| Jul 12, 3:36 AM CDT | Heat Advisory | ILX | Cass, DeWitt, Fulton, Knox, Logan, McLean and 11 more | 15 hr |
| Jul 12, 3:41 AM CDT | Heat Advisory | LOT | Ford, Grundy, LaSalle, Livingston | 12 hr |
| Jul 12, 4:05 AM CDT | Heat Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 16 hr |
| Jul 13, 3:13 AM CDT | Heat Advisory | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 15 hr |
| Jul 18, 2:34 PM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 4 days |
| Jul 18, 3:07 PM CDT | Heat Advisory | ILX | Champaign, Clark, Coles, DeWitt, Douglas, Edgar and 9 more | 4 days |
| Jul 18, 3:30 PM CDT | Heat Advisory | LSX | Randolph | 3 days |
| Jul 19, 3:50 AM CDT | Heat Advisory | DVN | Bureau, Henry, Putnam, Rock Island, Whiteside | 4 days |
| Jul 21, 12:30 PM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 2 hr |
| Jul 25, 3:42 AM CDT | Heat Advisory | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 40 hr |
| Jul 25, 3:23 PM CDT | Heat Advisory | PAH | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more | 29 hr |
| Sep 22, 10:16 AM CDT | Heat Advisory | DVN | Carroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 4 more | 9 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hancock County5
- Henderson County5
- McDonough County5
- Mercer County5
- Warren County5
- Henry County4
- Rock Island County4
- Whiteside County4
- Bureau County3
- Putnam County3
- Alexander County3
- Franklin County3
- Gallatin County3
- Hamilton County3
- Hardin County3
- Jackson County3
- Jefferson County3
- Johnson County3
- Massac County3
- Perry County3
- Pope County3
- Pulaski County3
- Saline County3
- Union County3
- Williamson County3
- Carroll County2
- Jo Daviess County2
- Bond County2
- Calhoun County2
- Clinton County2
- Fayette County2
- Greene County2
- Jersey County2
- Macoupin County2
- Madison County2
- Marion County2
- Monroe County2
- Montgomery County2
- Saint Clair County2
- Washington County2
43 more counties
- DeWitt County2
- Knox County2
- McLean County2
- Marshall County2
- Peoria County2
- Stark County2
- Tazewell County2
- Woodford County2
- Edwards County2
- Wabash County2
- Wayne County2
- White County2
- Randolph County2
- Stephenson County1
- Adams County1
- Brown County1
- Pike County1
- Cass County1
- Fulton County1
- Logan County1
- Mason County1
- Menard County1
- Morgan County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Ford County1
- Grundy County1
- LaSalle County1
- Livingston County1
- Clay County1
- Crawford County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Richland County1
- Champaign County1
- Clark County1
- Coles County1
- Douglas County1
- Edgar County1
- Piatt County1
- Vermilion County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.