Alert archive / Illinois / Heat Advisories

Heat Advisories in Illinois, 2024

29 heat advisories in 2024. 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 2024. Tap one for its archive.

Heat Advisories
29
Busiest month
July15 heat advisories
Busiest day
August 25, 20245 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.

IssuedProductOfficeCountiesLasted
Jun 17, 2:04 AM CDTHeat AdvisoryDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more42 hr
Jun 22, 2:55 AM CDTHeat AdvisoryDVNHancock, Henderson, Henry, McDonough, Mercer, Rock Island and 1 more16 hr
Jun 24, 2:33 AM CDTHeat AdvisoryPAHAlexander, Edwards, Franklin, Hamilton, Jackson, Jefferson and 11 more41 hr
Jun 24, 2:59 AM CDTHeat AdvisoryLSXBond, Clinton, Fayette, Madison, Marion, Monroe and 3 more40 hr
Jun 24, 2:04 PM CDTHeat AdvisoryILXClay, Crawford, Effingham, Jasper, Lawrence, Richland25 hr
Jun 28, 2:08 PM CDTHeat AdvisoryPAHAlexander, Jackson, Johnson, Massac, Pope, Pulaski and 2 more29 hr
Jul 2, 1:16 PM CDTHeat AdvisoryPAHAlexander, Edwards, Gallatin, Hardin, Johnson, Massac and 6 more31 hr
Jul 4, 2:56 AM CDTHeat AdvisoryPAHAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more18 hr
Jul 12, 1:46 PM CDTHeat AdvisoryDVNHancock, Henderson, Henry, McDonough, Mercer, Rock Island and 1 more30 hr
Jul 13, 2:01 PM CDTHeat AdvisoryPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more69 hr
Jul 13, 2:29 PM CDTHeat AdvisoryLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more68 hr
Jul 13, 2:51 PM CDTHeat AdvisoryILXCass, Champaign, Christian, Clark, Clay, Coles and 29 more53 hr
Jul 14, 2:20 AM CDTHeat AdvisoryDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more19 hr
Jul 15, 2:33 AM CDTHeat AdvisoryDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more17 hr
Jul 15, 4:07 AM CDTHeat AdvisoryLOTDeKalb, Ford, Grundy, Iroquois, Kankakee, Kendall and 5 more15 hr
Jul 28, 3:27 AM CDTHeat AdvisoryLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 8 more5 days
Jul 28, 1:47 PM CDTHeat AdvisoryPAHAlexander, Jackson, Perry, Pulaski, Union30 hr
Jul 29, 2:52 AM CDTHeat AdvisoryDVNHancock, Henderson, McDonough, Warren17 hr
Jul 29, 2:32 PM CDTHeat AdvisoryPAHEdwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 5 more3 days
Jul 30, 2:23 AM CDTHeat AdvisoryILXCass, Christian, Clay, Crawford, Effingham, Jasper and 8 more18 hr
Jul 30, 2:32 AM CDTHeat AdvisoryDVNHancock, McDonough8 hr
Aug 5, 11:02 AM CDTHeat AdvisoryDVNBureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more9 hr
Aug 5, 2:04 PM CDTHeat AdvisoryLSXBond, Calhoun, Clinton, Fayette, Jersey, Madison and 5 more28 hr
Aug 24, 2:08 PM CDTHeat AdvisoryDVNHancock, Henderson30 hr
Aug 25, 2:27 AM CDTHeat AdvisoryILXCass, Logan, McLean, Marshall, Mason, Menard and 5 more42 hr
Aug 25, 2:39 AM CDTHeat AdvisoryLSXAdams, Brown, Calhoun, Pike65 hr
Aug 25, 3:35 AM CDTHeat AdvisoryLOTBoone, DeKalb, DuPage, Grundy, Kane, Kendall and 8 more40 hr
Aug 25, 2:17 PM CDTHeat AdvisoryLSXBond, Clinton, Fayette, Greene, Jersey, Macoupin and 7 more5 days
Aug 25, 2:22 PM CDTHeat AdvisoryILXChristian, Clark, Clay, Coles, Crawford, Cumberland and 8 more54 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

61 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 25, 20245heat advisories
  2. June 24, 20243heat advisories
  3. July 13, 20243heat advisories
  4. July 15, 20242heat advisories
  5. July 28, 20242heat advisories
  6. July 29, 20242heat advisories
  7. July 30, 20242heat advisories
  8. August 5, 20242heat advisories
  9. June 17, 20241heat advisories
  10. June 22, 20241heat advisories
  11. June 28, 20241heat advisories
  12. July 2, 20241heat advisories

Nearby

Alerts in force nowTornadoes on recordThe radar archive20232025

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. Warning verification from the Mesonet's Cow. Rebuilt daily.