Alert archive / Illinois / Flash Flood Warnings
Flash Flood Warnings in Illinois, 2018
106 flash flood warnings 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Flash Flood Warnings
- 106
- Busiest month
- June46 flash flood warnings
- Busiest day
- September 8, 201813 flash flood warnings
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 |
|---|---|---|---|---|
| Feb 20, 7:16 PM CST | Flash Flood Warning | ILX | Champaign, DeWitt, Douglas, McLean, Moultrie, Piatt and 1 more | 6 hr |
| Feb 24, 3:59 PM CST | Flash Flood Warning | PAH | Alexander, Franklin, Jackson, Johnson, Perry, Pulaski and 2 more | 5 hr |
| Feb 24, 5:25 PM CST | Flash Flood Warning | PAH | Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more | 5 hr |
| Feb 24, 6:09 PM CST | Flash Flood Warning | PAH | Massac | 5 hr |
| Apr 3, 8:28 AM CDT | Flash Flood Warning | ILX | Clark, Coles, Cumberland, Edgar, Effingham, Shelby | 3 hr |
| Apr 3, 10:08 AM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| May 25, 1:45 PM CDT | Flash Flood Warning | ILX | Knox | 3 hr |
| May 25, 4:09 PM CDT | Flash Flood Warning | PAH | Alexander, Pulaski | 111 min |
| May 26, 4:59 PM CDT | Flash Flood Warning | ILX | Schuyler | 3 hr |
| May 30, 6:34 AM CDT | Flash Flood Warning | ILX | Marshall, Peoria, Tazewell, Woodford | 5 hr |
| Jun 9, 12:43 AM CDT | Flash Flood Warning | DVN | Rock Island | 2 hr |
| Jun 9, 2:57 AM CDT | Flash Flood Warning | LOT | Boone, Winnebago | 3 hr |
| Jun 9, 4:42 AM CDT | Flash Flood Warning | LOT | Cook | 3 hr |
| Jun 10, 3:13 PM CDT | Flash Flood Warning | ILX | Vermilion | 3 hr |
| Jun 10, 5:41 PM CDT | Flash Flood Warning | PAH | Wabash | 5 hr |
| Jun 10, 6:42 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jun 10, 7:22 PM CDT | Flash Flood Warning | LSX | Montgomery | 6 hr |
| Jun 10, 10:14 PM CDT | Flash Flood Warning | PAH | Edwards, Wabash | 3 hr |
| Jun 11, 2:35 AM CDT | Flash Flood Warning | ILX | Morgan, Sangamon | 5 hr |
| Jun 11, 3:10 AM CDT | Flash Flood Warning | ILX | Christian, Moultrie, Shelby | 6 hr |
| Jun 11, 8:01 PM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Marion | 6 hr |
| Jun 11, 10:10 PM CDT | Flash Flood Warning | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 6 hr |
| Jun 12, 1:03 AM CDT | Flash Flood Warning | ILX | Christian, Cumberland, Shelby | 6 hr |
| Jun 12, 5:27 AM CDT | Flash Flood Warning | LSX | Fayette, Marion | 6 hr |
| Jun 12, 6:00 AM CDT | Flash Flood Warning | ILX | Clay, Effingham | 4 hr |
| Jun 12, 6:31 AM CDT | Flash Flood Warning | LSX | Fayette | 5 hr |
| Jun 12, 6:57 AM CDT | Flash Flood Warning | ILX | Christian, Cumberland, Shelby | 4 hr |
| Jun 12, 8:36 AM CDT | Flash Flood Warning | PAH | Wabash | 3 hr |
| Jun 12, 2:17 PM CDT | Flash Flood Warning | PAH | Wayne | 118 min |
| Jun 12, 3:26 PM CDT | Flash Flood Warning | PAH | Edwards | 2 hr |
| Jun 12, 3:48 PM CDT | Flash Flood Warning | PAH | Wabash | 3 hr |
| Jun 15, 6:51 AM CDT | Flash Flood Warning | LOT | Ogle, Winnebago | 3 hr |
| Jun 15, 7:12 AM CDT | Flash Flood Warning | LOT | LaSalle, Lee, Ogle | 3 hr |
| Jun 18, 6:11 PM CDT | Flash Flood Warning | LOT | Boone, Winnebago | 6 hr |
| Jun 18, 7:41 PM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Jun 19, 8:12 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jun 19, 8:14 PM CDT | Flash Flood Warning | ILX | Effingham | 4 hr |
| Jun 20, 5:39 PM CDT | Flash Flood Warning | DVN | Rock Island | 3 hr |
| Jun 20, 7:16 PM CDT | Flash Flood Warning | ILX | Fulton, Schuyler | 6 hr |
| Jun 20, 8:41 PM CDT | Flash Flood Warning | ILX | Fulton, Peoria, Tazewell, Woodford | 6 hr |
| Jun 21, 3:27 PM CDT | Flash Flood Warning | DVN | Henry | 5 hr |
| Jun 21, 4:10 PM CDT | Flash Flood Warning | ILX | Marshall, Tazewell, Woodford | 11 hr |
| Jun 25, 2:05 AM CDT | Flash Flood Warning | PAH | Alexander | 3 hr |
| Jun 25, 2:22 AM CDT | Flash Flood Warning | PAH | Pulaski | 3 hr |
| Jun 25, 2:48 AM CDT | Flash Flood Warning | PAH | Massac | 6 hr |
| Jun 25, 3:25 AM CDT | Flash Flood Warning | PAH | Pope | 6 hr |
| Jun 25, 5:31 AM CDT | Flash Flood Warning | PAH | Alexander, Pulaski, Union | 3 hr |
| Jun 25, 8:01 PM CDT | Flash Flood Warning | LSX | Monroe, Saint Clair, Washington | 6 hr |
| Jun 26, 10:30 AM CDT | Flash Flood Warning | PAH | Wabash | 2 hr |
| Jun 26, 5:31 PM CDT | Flash Flood Warning | LOT | Kane | 3 hr |
| Jun 26, 5:54 PM CDT | Flash Flood Warning | LOT | Winnebago | 4 hr |
| Jun 28, 7:09 PM CDT | Flash Flood Warning | PAH | Franklin, Perry | 110 min |
| Jun 28, 7:24 PM CDT | Flash Flood Warning | LSX | Clinton, Monroe, Saint Clair, Washington | 4 hr |
| Jun 28, 7:27 PM CDT | Flash Flood Warning | PAH | Jackson, Saline, Williamson | 3 hr |
| Jun 28, 8:07 PM CDT | Flash Flood Warning | LSX | Monroe, Randolph | 6 hr |
| Jun 28, 8:40 PM CDT | Flash Flood Warning | PAH | Alexander, Massac, Pulaski, Union | 71 min |
| Jul 1, 6:04 PM CDT | Flash Flood Warning | ILX | DeWitt, Logan | 3 hr |
| Jul 1, 7:37 PM CDT | Flash Flood Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 6 hr |
| Jul 4, 8:22 PM CDT | Flash Flood Warning | DVN | Bureau | 71 min |
| Jul 5, 12:23 PM CDT | Flash Flood Warning | ILX | Vermilion | 3 hr |
| Jul 5, 6:06 PM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 3 hr |
| Jul 14, 4:50 PM CDT | Flash Flood Warning | DVN | Henry | 88 min |
| Jul 14, 5:01 PM CDT | Flash Flood Warning | ILX | Cass, Mason, Menard, Schuyler | 3 hr |
| Jul 14, 5:50 PM CDT | Flash Flood Warning | ILX | Fulton | 112 min |
| Jul 14, 6:57 PM CDT | Flash Flood Warning | DVN | Henderson | 4 hr |
| Jul 14, 10:03 PM CDT | Flash Flood Warning | LSX | Randolph | 5 hr |
| Jul 15, 3:15 PM CDT | Flash Flood Warning | LSX | Randolph | 6 hr |
| Jul 15, 6:52 PM CDT | Flash Flood Warning | PAH | Franklin, Williamson | 3 hr |
| Jul 29, 5:15 PM CDT | Flash Flood Warning | LSX | Randolph | 3 hr |
| Aug 6, 9:02 PM CDT | Flash Flood Warning | LOT | Ford | 3 hr |
| Aug 6, 10:17 PM CDT | Flash Flood Warning | ILX | Champaign, Vermilion | 3 hr |
| Aug 7, 4:00 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kane, Lake | 3 hr |
| Aug 10, 4:48 PM CDT | Flash Flood Warning | LSX | Madison | 2 hr |
| Aug 17, 12:10 AM CDT | Flash Flood Warning | ILX | Christian, Morgan, Sangamon | 77 min |
| Aug 17, 1:19 AM CDT | Flash Flood Warning | LSX | Montgomery | 6 hr |
| Aug 17, 2:31 AM CDT | Flash Flood Warning | LSX | Fayette | 5 hr |
| Aug 29, 1:43 AM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 6 hr |
| Sep 6, 5:40 AM CDT | Flash Flood Warning | LSX | Adams | 4 hr |
| Sep 7, 5:06 AM CDT | Flash Flood Warning | ILX | Knox | 14 hr |
| Sep 7, 10:33 AM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| Sep 7, 12:12 PM CDT | Flash Flood Warning | ILX | DeWitt, Logan, Macon, Menard, Sangamon | 6 hr |
| Sep 7, 2:06 PM CDT | Flash Flood Warning | ILX | Champaign, Macon, Piatt, Vermilion | 6 hr |
| Sep 7, 3:14 PM CDT | Flash Flood Warning | ILX | Cass, Christian, Logan, Macon, Menard, Morgan and 2 more | 6 hr |
| Sep 7, 5:31 PM CDT | Flash Flood Warning | LSX | Bond, Fayette, Macoupin, Montgomery | 6 hr |
| Sep 7, 5:54 PM CDT | Flash Flood Warning | PAH | Wayne | 102 min |
| Sep 7, 7:26 PM CDT | Flash Flood Warning | LSX | Saint Clair | 6 hr |
| Sep 7, 8:34 PM CDT | Flash Flood Warning | LSX | Monroe, Randolph, Saint Clair | 5 hr |
| Sep 7, 10:23 PM CDT | Flash Flood Warning | PAH | Franklin | 3 hr |
| Sep 7, 11:22 PM CDT | Flash Flood Warning | PAH | Wabash | 3 hr |
| Sep 7, 11:36 PM CDT | Flash Flood Warning | PAH | Jackson | 3 hr |
| Sep 7, 11:56 PM CDT | Flash Flood Warning | PAH | Wayne | 3 hr |
| Sep 8, 12:35 AM CDT | Flash Flood Warning | PAH | Franklin, Williamson | 115 min |
| Sep 8, 12:58 AM CDT | Flash Flood Warning | PAH | Jefferson, Perry | 2 hr |
| Sep 8, 2:16 AM CDT | Flash Flood Warning | ILX | Clay, Richland | 6 hr |
| Sep 8, 3:29 AM CDT | Flash Flood Warning | ILX | Jasper | 4 hr |
| Sep 8, 5:47 AM CDT | Flash Flood Warning | ILX | Clark, Crawford | 3 hr |
| Sep 8, 10:43 AM CDT | Flash Flood Warning | PAH | Edwards, Franklin, Hamilton, Jefferson, Perry, Wabash and 2 more | 6 hr |
| Sep 8, 1:40 PM CDT | Flash Flood Warning | ILX | Clay, Crawford, Jasper, Lawrence, Richland | 4 hr |
| Sep 25, 8:10 AM CDT | Flash Flood Warning | PAH | Hamilton | 3 hr |
| Oct 6, 3:03 AM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Stephenson | 6 hr |
| Oct 10, 6:48 AM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Rock Island | 6 hr |
| Oct 10, 6:51 AM CDT | Flash Flood Warning | DVN | Hancock, Henderson, Mercer | 2 hr |
| Oct 10, 8:00 AM CDT | Flash Flood Warning | DVN | McDonough | 89 min |
| Oct 10, 9:05 AM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Stephenson | 3 hr |
| Dec 1, 6:27 PM CST | Flash Flood Warning | ILX | Tazewell | 3 hr |
| Dec 15, 2:04 AM CST | Flash Flood Warning | PAH | Franklin | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fayette County9
- Wabash County8
- Franklin County7
- Tazewell County6
- Vermilion County5
- Alexander County5
- Pulaski County5
- Wayne County5
- Woodford County5
- Christian County5
- Randolph County5
- Perry County4
- Williamson County4
- Edwards County4
- Effingham County4
- Shelby County4
- Peoria County4
- Winnebago County4
- Montgomery County4
- Sangamon County4
- Clay County4
- Jo Daviess County4
- Monroe County4
- Saint Clair County4
- Champaign County3
- DeWitt County3
- Jackson County3
- Union County3
- Hamilton County3
- Massac County3
- Cumberland County3
- Schuyler County3
- Rock Island County3
- Morgan County3
- Bond County3
- Crawford County3
- Jasper County3
- Richland County3
- Stephenson County3
- Fulton County3
45 more counties
- Logan County3
- Menard County3
- Macon County3
- Carroll County3
- Moultrie County2
- Piatt County2
- Pope County2
- Saline County2
- White County2
- Clark County2
- Knox County2
- Marshall County2
- Boone County2
- Cook County2
- Clinton County2
- Marion County2
- Lawrence County2
- Ogle County2
- Henry County2
- Washington County2
- Kane County2
- Macoupin County2
- Madison County2
- Cass County2
- Henderson County2
- Adams County2
- Jefferson County2
- Douglas County1
- McLean County1
- Johnson County1
- Gallatin County1
- Hardin County1
- Coles County1
- Edgar County1
- LaSalle County1
- Lee County1
- Bureau County1
- Mason County1
- Ford County1
- DuPage County1
- Lake County1
- Scott County1
- Hancock County1
- Mercer County1
- McDonough 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.