Alert archive / Illinois / Areal Flood Advisories / 2021
Areal Flood Advisories in Illinois, August 2021
48 areal flood advisories in August 2021. 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 areal flood advisories reaches back to 2005.
Areal Flood Advisories by county
Each county as a circle sized by its count in August 2021. Tap one for its archive.
- Areal Flood Advisories
- 48
- Busiest day
- August 30, 202113 areal flood 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 8, 4:35 PM CDT | Areal Flood Advisory | LSX | Adams, Pike | 3 hr |
| Aug 8, 4:45 PM CDT | Areal Flood Advisory | ILX | McLean | 2 hr |
| Aug 8, 6:29 PM CDT | Areal Flood Advisory | LOT | Livingston | 3 hr |
| Aug 8, 7:20 PM CDT | Areal Flood Advisory | ILX | McLean | 115 min |
| Aug 9, 2:26 AM CDT | Areal Flood Advisory | ILX | Clay | 3 hr |
| Aug 9, 2:29 AM CDT | Areal Flood Advisory | LSX | Fayette, Marion | 5 hr |
| Aug 9, 6:28 AM CDT | Areal Flood Advisory | ILX | Christian, Macon, Moultrie, Shelby | 3 hr |
| Aug 9, 7:07 AM CDT | Areal Flood Advisory | ILX | Logan, Menard, Sangamon | 3 hr |
| Aug 9, 10:50 AM CDT | Areal Flood Advisory | ILX | Clay, Crawford, Effingham, Jasper | 2 hr |
| Aug 9, 11:49 AM CDT | Areal Flood Advisory | LOT | Boone, DeKalb, Kane, McHenry, Ogle, Winnebago | 3 hr |
| Aug 9, 3:25 PM CDT | Areal Flood Advisory | LOT | Boone, Winnebago | 3 hr |
| Aug 9, 4:12 PM CDT | Areal Flood Advisory | LOT | Boone, McHenry | 3 hr |
| Aug 12, 9:24 AM CDT | Areal Flood Advisory | ILX | DeWitt, McLean, Piatt | 3 hr |
| Aug 12, 9:27 AM CDT | Areal Flood Advisory | LOT | Ford | 2 hr |
| Aug 12, 12:01 PM CDT | Areal Flood Advisory | LOT | Ford | 4 hr |
| Aug 12, 4:56 PM CDT | Areal Flood Advisory | LSX | Adams | 4 hr |
| Aug 12, 5:28 PM CDT | Areal Flood Advisory | LSX | Bond, Madison | 4 hr |
| Aug 18, 1:33 PM CDT | Areal Flood Advisory | LOT | Will | 93 min |
| Aug 18, 8:21 PM CDT | Areal Flood Advisory | LOT | Kankakee | 114 min |
| Aug 19, 1:46 PM CDT | Areal Flood Advisory | LOT | Cook | 119 min |
| Aug 21, 2:10 PM CDT | Areal Flood Advisory | LSX | Marion | 43 min |
| Aug 23, 6:04 PM CDT | Areal Flood Advisory | LSX | Monroe, Randolph | 3 hr |
| Aug 24, 4:58 PM CDT | Areal Flood Advisory | LOT | Boone, Lake, McHenry | 3 hr |
| Aug 24, 6:19 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Lake | 17 min |
| Aug 24, 7:31 PM CDT | Areal Flood Advisory | LOT | Boone, Lake, McHenry | 3 hr |
| Aug 24, 8:43 PM CDT | Areal Flood Advisory | LOT | Cook | 4 hr |
| Aug 25, 6:23 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Will | 3 hr |
| Aug 25, 8:34 PM CDT | Areal Flood Advisory | LOT | Cook, Kankakee, Will | 3 hr |
| Aug 25, 8:54 PM CDT | Areal Flood Advisory | LOT | DuPage, Kane, Kendall, Will | 17 min |
| Aug 26, 1:38 AM CDT | Areal Flood Advisory | LOT | Kane, Kendall | 2 hr |
| Aug 26, 6:54 PM CDT | Areal Flood Advisory | LSX | Bond | 3 hr |
| Aug 27, 4:55 PM CDT | Areal Flood Advisory | PAH | Edwards, Wabash | 3 hr |
| Aug 27, 5:58 PM CDT | Areal Flood Advisory | PAH | Wayne, White | 2 hr |
| Aug 27, 7:06 PM CDT | Areal Flood Advisory | PAH | Hamilton | 2 hr |
| Aug 28, 5:26 PM CDT | Areal Flood Advisory | LOT | Boone, McHenry | 2 hr |
| Aug 30, 11:39 AM CDT | Areal Flood Advisory | PAH | Jefferson | 3 hr |
| Aug 30, 12:19 PM CDT | Areal Flood Advisory | PAH | Wayne | 3 hr |
| Aug 30, 12:53 PM CDT | Areal Flood Advisory | ILX | Edgar, Vermilion | 3 hr |
| Aug 30, 1:41 PM CDT | Areal Flood Advisory | PAH | Hamilton, White | 2 hr |
| Aug 30, 1:53 PM CDT | Areal Flood Advisory | LSX | Fayette, Marion | 3 hr |
| Aug 30, 2:38 PM CDT | Areal Flood Advisory | LSX | Bond, Clinton, Madison, Saint Clair | 3 hr |
| Aug 30, 2:47 PM CDT | Areal Flood Advisory | ILX | Clay | 3 hr |
| Aug 30, 3:16 PM CDT | Areal Flood Advisory | ILX | Clark, Coles, Edgar | 3 hr |
| Aug 30, 4:10 PM CDT | Areal Flood Advisory | LSX | Montgomery | 3 hr |
| Aug 30, 4:42 PM CDT | Areal Flood Advisory | PAH | Perry | 40 min |
| Aug 30, 5:40 PM CDT | Areal Flood Advisory | LSX | Randolph | 3 hr |
| Aug 30, 6:22 PM CDT | Areal Flood Advisory | LSX | Clinton, Marion | 3 hr |
| Aug 30, 6:33 PM CDT | Areal Flood Advisory | PAH | Jefferson | 117 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boone County6
- McHenry County5
- Cook County5
- Marion County4
- Will County4
- McLean County3
- Clay County3
- Kane County3
- Bond County3
- Lake County3
- DuPage County3
- Adams County2
- Fayette County2
- Winnebago County2
- Ford County2
- Madison County2
- Kankakee County2
- Randolph County2
- Kendall County2
- Wayne County2
- White County2
- Hamilton County2
- Jefferson County2
- Edgar County2
- Clinton County2
- Pike County1
- Livingston County1
- Christian County1
- Macon County1
- Moultrie County1
- Shelby County1
- Logan County1
- Menard County1
- Sangamon County1
- Crawford County1
- Effingham County1
- Jasper County1
- DeKalb County1
- Ogle County1
- DeWitt County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.