Alert archive / Illinois / Heat Advisories
Heat Advisories in Illinois, 2018
29 heat advisories in 2018. 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 2018. Tap one for its archive.
- Heat Advisories
- 29
- Busiest month
- July12 heat advisories
- Busiest day
- July 3, 20185 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 14, 3:50 AM CDT | Heat Advisory | LSX | Madison, Saint Clair | 24 hr |
| Jun 15, 3:25 AM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 4 days |
| Jun 15, 3:36 AM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 4 days |
| Jun 15, 3:53 AM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 8 more | 5 days |
| Jun 15, 3:40 PM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 3 days |
| Jun 16, 9:21 AM CDT | Heat Advisory | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 58 hr |
| Jun 27, 3:46 AM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 5 days |
| Jun 27, 2:55 PM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 24 hr |
| Jun 27, 3:11 PM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 24 hr |
| Jun 28, 3:12 AM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 4 days |
| Jul 3, 2:39 AM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 65 hr |
| Jul 3, 3:05 AM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 64 hr |
| Jul 3, 3:31 AM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 64 hr |
| Jul 3, 2:38 PM CDT | Heat Advisory | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 9 more | 49 hr |
| Jul 3, 3:48 PM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 28 hr |
| Jul 5, 2:28 AM CDT | Heat Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 2 more | 17 hr |
| Jul 11, 2:48 AM CDT | Heat Advisory | PAH | Alexander, Massac, Pulaski | 17 hr |
| Jul 12, 3:35 AM CDT | Heat Advisory | LSX | Adams, Bond, Calhoun, Clinton, Fayette, Greene and 10 more | 64 hr |
| Jul 13, 3:37 AM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more | 15 hr |
| Jul 14, 2:38 AM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 17 hr |
| Jul 14, 3:09 AM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 20 more | 13 hr |
| Jul 19, 3:35 PM CDT | Heat Advisory | PAH | Alexander, Pulaski | 27 hr |
| Aug 24, 3:33 PM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 4 days |
| Aug 25, 1:41 PM CDT | Heat Advisory | DVN | Hancock, Henderson, McDonough, Mercer, Rock Island, Warren | 5 hr |
| Aug 26, 3:03 AM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 64 hr |
| Aug 26, 3:07 AM CDT | Heat Advisory | LOT | Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston | 16 hr |
| Aug 26, 4:09 AM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 63 hr |
| Aug 26, 2:56 PM CDT | Heat Advisory | LOT | DeKalb, DuPage, Ford, Grundy, Iroquois, Kane and 6 more | 28 hr |
| Aug 28, 1:00 PM CDT | Heat Advisory | LOT | Ford, Iroquois, Kankakee, Livingston | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hancock County7
- Henderson County7
- McDonough County7
- Mercer County7
- Warren County7
- Bureau County6
- Henry County6
- Putnam County6
- Rock Island County6
- Alexander County6
- Pulaski County6
- Madison County5
- Saint Clair County5
- Carroll County5
- Whiteside County5
- Cass County5
- Champaign County5
- Christian County5
- Clark County5
- Clay County5
- Coles County5
- Crawford County5
- Cumberland County5
- DeWitt County5
- Douglas County5
- Edgar County5
- Effingham County5
- Jasper County5
- Lawrence County5
- Logan County5
- Macon County5
- Mason County5
- Menard County5
- Morgan County5
- Moultrie County5
- Piatt County5
- Richland County5
- Sangamon County5
- Scott County5
- Shelby County5
60 more counties
- Vermilion County5
- Adams County5
- Bond County5
- Calhoun County5
- Clinton County5
- Fayette County5
- Greene County5
- Jersey County5
- Macoupin County5
- Marion County5
- Montgomery County5
- Pike County5
- Randolph County5
- Washington County5
- Massac County5
- Ford County5
- Iroquois County5
- Kankakee County5
- Livingston County5
- Jo Daviess County4
- Stephenson County4
- Fulton County4
- Knox County4
- McLean County4
- Marshall County4
- Peoria County4
- Schuyler County4
- Stark County4
- Tazewell County4
- Woodford County4
- Brown County4
- Edwards County4
- Franklin County4
- Gallatin County4
- Hamilton County4
- Hardin County4
- Jackson County4
- Jefferson County4
- Johnson County4
- Perry County4
- Pope County4
- Saline County4
- Union County4
- Wabash County4
- Wayne County4
- White County4
- Williamson County4
- Grundy County4
- LaSalle County4
- Monroe County4
- DeKalb County3
- DuPage County3
- Kane County3
- Kendall County3
- Lee County3
- Ogle County3
- Boone County2
- McHenry County2
- Winnebago County2
- Lake County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.