Alert archive / Illinois / Flash Flood Warnings
Flash Flood Warnings in Illinois, 2019
148 flash flood warnings in 2019. 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 2019. Tap one for its archive.
- Flash Flood Warnings
- 148
- Busiest month
- May38 flash flood warnings
- Busiest day
- May 29, 201911 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 6, 9:47 AM CST | Flash Flood Warning | LOT | Grundy, Will | 3 hr |
| Feb 6, 5:30 PM CST | Flash Flood Warning | DVN | Henry | 6 hr |
| Feb 7, 8:23 AM CST | Flash Flood Warning | PAH | Edwards, Franklin, Hamilton, Jackson, Jefferson, Perry and 3 more | 5 hr |
| Feb 7, 9:43 AM CST | Flash Flood Warning | PAH | Alexander, Johnson, Pulaski, Union, Williamson | 3 hr |
| Apr 10, 5:20 AM CDT | Flash Flood Warning | ILX | Knox, Marshall, Peoria, Stark | 116 min |
| Apr 30, 12:01 PM CDT | Flash Flood Warning | DVN | Henderson, Henry, Mercer, Warren | 5 hr |
| Apr 30, 12:12 PM CDT | Flash Flood Warning | ILX | Knox | 4 hr |
| Apr 30, 1:31 PM CDT | Flash Flood Warning | DVN | Bureau | 4 hr |
| Apr 30, 6:31 PM CDT | Flash Flood Warning | ILX | Clark, Edgar | 2 hr |
| Apr 30, 10:06 PM CDT | Flash Flood Warning | ILX | Sangamon | 6 hr |
| May 6, 10:46 PM CDT | Flash Flood Warning | DVN | Hancock | 2 hr |
| May 16, 10:33 PM CDT | Flash Flood Warning | LOT | Lee | 3 hr |
| May 16, 11:14 PM CDT | Flash Flood Warning | LOT | Lee | 4 hr |
| May 23, 1:35 AM CDT | Flash Flood Warning | LSX | Jersey | 6 hr |
| May 23, 3:34 AM CDT | Flash Flood Warning | ILX | Cumberland, Effingham, Shelby | 6 hr |
| May 23, 3:37 AM CDT | Flash Flood Warning | LSX | Fayette, Montgomery | 6 hr |
| May 23, 4:51 AM CDT | Flash Flood Warning | ILX | Crawford, Effingham, Jasper | 5 hr |
| May 23, 8:44 AM CDT | Flash Flood Warning | ILX | Lawrence, Richland | 6 hr |
| May 24, 11:45 AM CDT | Flash Flood Warning | DVN | Hancock, Henderson | 3 hr |
| May 24, 12:46 PM CDT | Flash Flood Warning | DVN | McDonough | 2 hr |
| May 25, 8:55 PM CDT | Flash Flood Warning | DVN | Hancock | 6 hr |
| May 25, 9:58 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 8 hr |
| May 25, 11:09 PM CDT | Flash Flood Warning | ILX | Fulton, Mason, Schuyler | 4 hr |
| May 26, 12:26 AM CDT | Flash Flood Warning | ILX | Logan | 2 hr |
| May 27, 1:54 PM CDT | Flash Flood Warning | DVN | Henry, Rock Island | 4 hr |
| May 27, 2:38 PM CDT | Flash Flood Warning | LOT | Cook | 3 hr |
| May 28, 6:09 PM CDT | Flash Flood Warning | DVN | Rock Island | 8 hr |
| May 28, 7:57 PM CDT | Flash Flood Warning | DVN | Hancock, Henderson, McDonough, Warren | 8 hr |
| May 28, 8:19 PM CDT | Flash Flood Warning | ILX | Fulton, Knox | 8 hr |
| May 28, 8:57 PM CDT | Flash Flood Warning | ILX | Fulton, Logan, Marshall, Mason, Peoria, Stark and 2 more | 6 hr |
| May 28, 9:43 PM CDT | Flash Flood Warning | ILX | DeWitt, Logan, McLean, Marshall, Tazewell, Woodford | 6 hr |
| May 28, 9:47 PM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| May 29, 9:04 AM CDT | Flash Flood Warning | PAH | Edwards, Wabash | 3 hr |
| May 29, 4:29 PM CDT | Flash Flood Warning | ILX | Clark, Crawford | 6 hr |
| May 29, 5:27 PM CDT | Flash Flood Warning | ILX | Clark, Crawford, Cumberland, Effingham, Jasper, Shelby | 6 hr |
| May 29, 6:20 PM CDT | Flash Flood Warning | PAH | Alexander | 3 hr |
| May 29, 6:31 PM CDT | Flash Flood Warning | LSX | Pike | 6 hr |
| May 29, 6:52 PM CDT | Flash Flood Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 6 hr |
| May 29, 7:20 PM CDT | Flash Flood Warning | ILX | Effingham, Jasper | 6 hr |
| May 29, 7:51 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 6 hr |
| May 29, 7:59 PM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| May 29, 8:50 PM CDT | Flash Flood Warning | DVN | Hancock, Henderson, McDonough, Warren | 6 hr |
| May 29, 9:36 PM CDT | Flash Flood Warning | ILX | Clark, Crawford | 114 min |
| May 29, 10:15 PM CDT | Flash Flood Warning | DVN | Rock Island | 6 hr |
| May 29, 10:31 PM CDT | Flash Flood Warning | DVN | Mercer, Rock Island | 4 hr |
| May 29, 11:34 PM CDT | Flash Flood Warning | ILX | Stark | 4 hr |
| May 30, 6:26 PM CDT | Flash Flood Warning | ILX | Peoria | 3 hr |
| Jun 5, 1:41 AM CDT | Flash Flood Warning | DVN | Carroll, Whiteside | 6 hr |
| Jun 5, 2:16 AM CDT | Flash Flood Warning | DVN | Carroll, Stephenson | 6 hr |
| Jun 5, 2:40 AM CDT | Flash Flood Warning | LOT | Ogle | 4 hr |
| Jun 5, 4:44 PM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| Jun 5, 5:22 PM CDT | Flash Flood Warning | LSX | Marion | 6 hr |
| Jun 5, 5:24 PM CDT | Flash Flood Warning | PAH | Wayne | 3 hr |
| Jun 5, 5:57 PM CDT | Flash Flood Warning | ILX | Clay | 6 hr |
| Jun 6, 2:54 PM CDT | Flash Flood Warning | DVN | Hancock | 3 hr |
| Jun 15, 10:07 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 106 min |
| Jun 16, 3:24 AM CDT | Flash Flood Warning | ILX | Clay, Lawrence, Richland | 3 hr |
| Jun 16, 3:47 PM CDT | Flash Flood Warning | ILX | Clay, Crawford, Jasper, Lawrence, Richland | 4 hr |
| Jun 16, 5:05 PM CDT | Flash Flood Warning | PAH | Franklin, Jackson, Jefferson, Union, Wayne | 3 hr |
| Jun 16, 6:15 PM CDT | Flash Flood Warning | PAH | Edwards, Wabash | 6 hr |
| Jun 19, 9:09 AM CDT | Flash Flood Warning | LSX | Adams | 3 hr |
| Jun 19, 10:13 AM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 6 hr |
| Jun 19, 10:19 AM CDT | Flash Flood Warning | ILX | Schuyler | 4 hr |
| Jun 19, 1:33 PM CDT | Flash Flood Warning | ILX | Clark, Edgar | 6 hr |
| Jun 19, 3:04 PM CDT | Flash Flood Warning | ILX | McLean, Tazewell, Woodford | 6 hr |
| Jun 19, 3:13 PM CDT | Flash Flood Warning | ILX | Crawford | 6 hr |
| Jun 21, 4:23 PM CDT | Flash Flood Warning | PAH | Jackson | 6 hr |
| Jun 21, 4:33 PM CDT | Flash Flood Warning | PAH | Williamson | 6 hr |
| Jun 22, 12:29 PM CDT | Flash Flood Warning | PAH | Jackson, Williamson | 6 hr |
| Jun 22, 12:57 PM CDT | Flash Flood Warning | PAH | Saline | 6 hr |
| Jun 26, 5:15 PM CDT | Flash Flood Warning | PAH | Jackson, Perry | 2 hr |
| Jun 26, 5:42 PM CDT | Flash Flood Warning | PAH | Edwards, Wayne | 6 hr |
| Jun 26, 6:18 PM CDT | Flash Flood Warning | ILX | Clay, Effingham, Richland | 5 hr |
| Jun 26, 6:25 PM CDT | Flash Flood Warning | ILX | Knox, Stark | 5 hr |
| Jun 26, 9:03 PM CDT | Flash Flood Warning | LOT | Cook, Will | 4 hr |
| Jun 26, 10:39 PM CDT | Flash Flood Warning | LOT | Kankakee | 6 hr |
| Jun 26, 11:48 PM CDT | Flash Flood Warning | LOT | Cook, Will | 3 hr |
| Jun 27, 12:52 AM CDT | Flash Flood Warning | LOT | Cook, Will | 6 hr |
| Jun 27, 1:26 AM CDT | Flash Flood Warning | LOT | Iroquois, Kankakee | 3 hr |
| Jun 27, 2:41 AM CDT | Flash Flood Warning | LOT | Cook, Will | 6 hr |
| Jun 29, 5:28 PM CDT | Flash Flood Warning | ILX | Stark | 2 hr |
| Jun 29, 6:13 PM CDT | Flash Flood Warning | ILX | Vermilion | 4 hr |
| Jun 29, 10:16 PM CDT | Flash Flood Warning | ILX | Vermilion | 5 hr |
| Jun 30, 4:14 PM CDT | Flash Flood Warning | ILX | Champaign, Douglas, Edgar, Vermilion | 6 hr |
| Jun 30, 5:38 PM CDT | Flash Flood Warning | ILX | Clark, Edgar | 4 hr |
| Jul 2, 7:48 PM CDT | Flash Flood Warning | LOT | Winnebago | 4 hr |
| Jul 2, 8:30 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kane, Kendall, Will | 4 hr |
| Jul 2, 9:55 PM CDT | Flash Flood Warning | DVN | Rock Island, Whiteside | 3 hr |
| Jul 3, 2:00 PM CDT | Flash Flood Warning | DVN | Rock Island | 3 hr |
| Jul 3, 5:22 PM CDT | Flash Flood Warning | ILX | Clay, Effingham, Jasper, Richland | 4 hr |
| Jul 3, 7:15 PM CDT | Flash Flood Warning | DVN | McDonough | 95 min |
| Jul 3, 7:21 PM CDT | Flash Flood Warning | ILX | Fulton | 4 hr |
| Jul 4, 10:25 PM CDT | Flash Flood Warning | DVN | Bureau, Putnam | 5 hr |
| Jul 5, 7:18 PM CDT | Flash Flood Warning | PAH | Edwards, Wabash | 2 hr |
| Jul 10, 2:39 PM CDT | Flash Flood Warning | PAH | Massac, Pope | 2 hr |
| Jul 10, 8:10 PM CDT | Flash Flood Warning | LSX | Calhoun | 6 hr |
| Jul 16, 10:22 PM CDT | Flash Flood Warning | PAH | Alexander, Pulaski | 6 hr |
| Jul 21, 10:39 AM CDT | Flash Flood Warning | LOT | DeKalb, Kane, Kendall, LaSalle | 3 hr |
| Jul 21, 12:51 PM CDT | Flash Flood Warning | LOT | Grundy, Kankakee, Will | 3 hr |
| Jul 22, 4:24 AM CDT | Flash Flood Warning | LSX | Madison | 6 hr |
| Jul 22, 6:24 AM CDT | Flash Flood Warning | LSX | Clinton, Madison | 6 hr |
| Jul 22, 7:31 AM CDT | Flash Flood Warning | LSX | Bond, Fayette | 4 hr |
| Aug 11, 7:31 PM CDT | Flash Flood Warning | ILX | Sangamon | 119 min |
| Aug 12, 2:38 AM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Macoupin, Marion, Montgomery | 8 hr |
| Aug 12, 3:15 AM CDT | Flash Flood Warning | LSX | Calhoun, Jersey, Madison | 6 hr |
| Aug 12, 5:11 AM CDT | Flash Flood Warning | LSX | Clinton, Saint Clair, Washington | 5 hr |
| Aug 12, 5:17 AM CDT | Flash Flood Warning | LSX | Calhoun, Greene, Jersey, Macoupin | 5 hr |
| Aug 12, 9:13 PM CDT | Flash Flood Warning | ILX | Christian, Logan, Macon, Menard, Moultrie, Piatt and 1 more | 4 hr |
| Aug 12, 10:51 PM CDT | Flash Flood Warning | ILX | Christian, Coles, Cumberland, Moultrie, Shelby | 4 hr |
| Aug 13, 2:14 AM CDT | Flash Flood Warning | LSX | Bond, Fayette, Madison | 8 hr |
| Aug 13, 3:40 AM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Marion | 6 hr |
| Aug 18, 5:03 PM CDT | Flash Flood Warning | ILX | Vermilion | 3 hr |
| Aug 18, 5:40 PM CDT | Flash Flood Warning | ILX | Edgar | 3 hr |
| Aug 21, 9:34 PM CDT | Flash Flood Warning | PAH | Jefferson, Wayne | 6 hr |
| Aug 21, 10:30 PM CDT | Flash Flood Warning | LSX | Clinton, Madison, Marion, Monroe, Saint Clair, Washington | 8 hr |
| Aug 21, 11:11 PM CDT | Flash Flood Warning | ILX | Clay, Effingham, Jasper, Richland | 6 hr |
| Aug 21, 11:38 PM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Marion | 7 hr |
| Sep 1, 4:46 AM CDT | Flash Flood Warning | ILX | Sangamon | 10 hr |
| Sep 1, 6:33 AM CDT | Flash Flood Warning | LSX | Montgomery | 5 hr |
| Sep 11, 10:08 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Sep 11, 10:56 PM CDT | Flash Flood Warning | DVN | Stephenson | 5 hr |
| Sep 11, 11:44 PM CDT | Flash Flood Warning | DVN | Stephenson | 2 hr |
| Sep 12, 2:53 AM CDT | Flash Flood Warning | LOT | Lake, McHenry | 3 hr |
| Sep 12, 7:16 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 5 hr |
| Sep 12, 9:12 PM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Sep 12, 11:18 PM CDT | Flash Flood Warning | DVN | Stephenson | 6 hr |
| Sep 13, 12:38 AM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Kane, Lake, McHenry, Ogle and 1 more | 6 hr |
| Sep 15, 3:19 AM CDT | Flash Flood Warning | DVN | Jo Daviess | 4 hr |
| Sep 15, 4:23 AM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess | 3 hr |
| Sep 15, 4:42 AM CDT | Flash Flood Warning | DVN | Mercer, Rock Island | 3 hr |
| Sep 15, 5:26 AM CDT | Flash Flood Warning | DVN | Whiteside | 3 hr |
| Sep 19, 8:50 AM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Sep 19, 9:34 AM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Sep 27, 1:32 PM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 3 hr |
| Sep 27, 1:37 PM CDT | Flash Flood Warning | LOT | LaSalle, Livingston | 4 hr |
| Sep 27, 7:03 PM CDT | Flash Flood Warning | DVN | Bureau, Henry, Putnam | 6 hr |
| Sep 27, 7:16 PM CDT | Flash Flood Warning | ILX | Knox, Marshall, Peoria, Stark | 6 hr |
| Sep 27, 7:37 PM CDT | Flash Flood Warning | LOT | Grundy, Kendall, LaSalle | 6 hr |
| Sep 27, 7:48 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kankakee, Will | 6 hr |
| Sep 27, 7:58 PM CDT | Flash Flood Warning | ILX | Fulton, Knox | 6 hr |
| Sep 27, 8:19 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 6 hr |
| Sep 27, 8:36 PM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 6 hr |
| Sep 27, 9:02 PM CDT | Flash Flood Warning | LOT | Grundy, LaSalle, Livingston | 6 hr |
| Sep 27, 9:04 PM CDT | Flash Flood Warning | DVN | Henderson, Warren | 6 hr |
| Sep 28, 11:35 PM CDT | Flash Flood Warning | DVN | Rock Island | 4 hr |
| Oct 1, 9:08 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Oct 1, 9:39 PM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Oct 3, 12:46 AM CDT | Flash Flood Warning | LOT | Cook | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hancock County11
- McDonough County9
- Jo Daviess County9
- Will County8
- Rock Island County8
- Cook County8
- Effingham County7
- Fayette County7
- Stephenson County7
- Knox County6
- Peoria County6
- Stark County6
- Clark County6
- Crawford County6
- Jasper County6
- Richland County6
- Bond County6
- Madison County6
- Clay County6
- Clinton County6
- Edwards County5
- Jackson County5
- Wayne County5
- Henderson County5
- Edgar County5
- Fulton County5
- Tazewell County5
- Woodford County5
- Marion County5
- Grundy County4
- Henry County4
- Wabash County4
- Marshall County4
- Warren County4
- Sangamon County4
- Montgomery County4
- Logan County4
- Adams County4
- Kankakee County4
- Vermilion County4
54 more counties
- LaSalle County4
- Jefferson County3
- Alexander County3
- Williamson County3
- Mercer County3
- Bureau County3
- Jersey County3
- Cumberland County3
- Shelby County3
- Lawrence County3
- Macoupin County3
- Carroll County3
- Whiteside County3
- Kane County3
- Kendall County3
- Calhoun County3
- Franklin County2
- Perry County2
- Pulaski County2
- Union County2
- Lee County2
- Mason County2
- Schuyler County2
- McLean County2
- Ogle County2
- Winnebago County2
- DuPage County2
- Putnam County2
- DeKalb County2
- Saint Clair County2
- Washington County2
- Christian County2
- Moultrie County2
- Lake County2
- McHenry County2
- Livingston County2
- Hamilton County1
- White County1
- Johnson County1
- DeWitt County1
- Pike County1
- Saline County1
- Iroquois County1
- Champaign County1
- Douglas County1
- Massac County1
- Pope County1
- Greene County1
- Macon County1
- Menard County1
- Piatt County1
- Coles County1
- Monroe County1
- Boone County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.