Alert archive / Illinois / Heat Advisories / 2011
Heat Advisories in Illinois, August 2011
9 heat advisories in August 2011. 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 August 2011. Tap one for its archive.
- Heat Advisories
- 9
- Busiest day
- August 1, 20112 heat advisories
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Aug 1, 3:32 AM CDT | Heat Advisory | LOT | Ford, Iroquois, Livingston | 16 hr |
| Aug 1, 4:11 AM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 63 hr |
| Aug 2, 3:38 AM CDT | Heat Advisory | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 20 hr |
| Aug 5, 4:10 AM CDT | Heat Advisory | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 63 hr |
| Aug 5, 2:20 PM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 53 hr |
| Aug 23, 3:35 AM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 39 hr |
| Aug 24, 3:14 AM CDT | Heat Advisory | ILX | Cass, Christian, Fulton, Logan, Mason, Menard and 4 more | 15 hr |
| Aug 24, 3:55 AM CDT | Heat Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 2 more | 12 hr |
| Aug 30, 4:15 PM CDT | Heat Advisory | LSX | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 5 more | 4 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Calhoun County3
- Greene County3
- Jersey County3
- Macoupin County3
- Madison County3
- Monroe County3
- Montgomery County3
- Saint Clair County3
- Ford County2
- Iroquois County2
- Livingston County2
- Alexander County2
- Edwards County2
- Franklin County2
- Gallatin County2
- Hamilton County2
- Hardin County2
- Jackson County2
- Jefferson County2
- Johnson County2
- Massac County2
- Perry County2
- Pope County2
- Pulaski County2
- Saline County2
- Union County2
- Wabash County2
- Wayne County2
- White County2
- Williamson County2
- Bond County2
- Clinton County2
- Fayette County2
- Marion County2
- Randolph County2
- Washington County2
- Adams County2
- Brown County2
- Pike County2
- Boone County1
30 more counties
- DeKalb County1
- DuPage County1
- Grundy County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- LaSalle County1
- Lee County1
- McHenry County1
- Ogle County1
- Winnebago County1
- Cass County1
- Christian County1
- Fulton County1
- Logan County1
- Mason County1
- Menard County1
- Morgan County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Bureau County1
- Hancock County1
- Henderson County1
- Henry County1
- McDonough County1
- Mercer County1
- Putnam County1
- Warren County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.