Alert archive / Illinois / Flash Flood Warnings
Flash Flood Warnings in Illinois, 2009
151 flash flood warnings in 2009. 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 2009. Tap one for its archive.
- Flash Flood Warnings
- 151
- Busiest month
- May51 flash flood warnings
- Busiest day
- May 14, 200916 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 26, 7:59 PM CST | Flash Flood Warning | LOT | Cook, DuPage, Kane, Kendall | 6 hr |
| Mar 10, 9:43 PM CDT | Flash Flood Warning | LOT | Ford, Iroquois | 8 hr |
| Apr 2, 3:35 PM CDT | Flash Flood Warning | PAH | Saline, Williamson | 100 min |
| Apr 19, 9:48 PM CDT | Flash Flood Warning | PAH | Jefferson | 117 min |
| Apr 30, 1:10 AM CDT | Flash Flood Warning | LSX | Adams, Pike | 6 hr |
| Apr 30, 6:45 PM CDT | Flash Flood Warning | PAH | Alexander, Johnson, Massac, Pulaski | 3 hr |
| May 8, 11:10 AM CDT | Flash Flood Warning | PAH | Franklin, Jackson, Jefferson, Perry, Williamson | 6 hr |
| May 8, 12:38 PM CDT | Flash Flood Warning | LSX | Monroe, Randolph, Saint Clair, Washington | 5 hr |
| May 13, 11:30 AM CDT | Flash Flood Warning | ILX | Champaign | 4 hr |
| May 13, 4:08 PM CDT | Flash Flood Warning | ILX | Clay, Effingham, Jasper | 4 hr |
| May 13, 9:06 PM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Stephenson | 5 hr |
| May 13, 9:22 PM CDT | Flash Flood Warning | LOT | Boone, Ogle, Winnebago | 4 hr |
| May 13, 9:52 PM CDT | Flash Flood Warning | ILX | Schuyler | 8 hr |
| May 13, 10:00 PM CDT | Flash Flood Warning | ILX | Cass, Morgan, Scott | 8 hr |
| May 13, 10:29 PM CDT | Flash Flood Warning | ILX | Fulton | 8 hr |
| May 13, 10:55 PM CDT | Flash Flood Warning | ILX | Christian, Morgan, Sangamon | 6 hr |
| May 13, 11:06 PM CDT | Flash Flood Warning | LOT | Livingston | 5 hr |
| May 13, 11:12 PM CDT | Flash Flood Warning | ILX | McLean, Woodford | 6 hr |
| May 14, 12:00 AM CDT | Flash Flood Warning | ILX | Macon, Moultrie, Piatt | 6 hr |
| May 14, 12:02 AM CDT | Flash Flood Warning | LOT | Ford, Iroquois, Kankakee | 4 hr |
| May 14, 12:56 AM CDT | Flash Flood Warning | ILX | Champaign, Douglas, Edgar, Vermilion | 6 hr |
| May 14, 1:00 AM CDT | Flash Flood Warning | ILX | Christian, Clark, Coles, Cumberland, Douglas, Edgar and 2 more | 6 hr |
| May 14, 1:41 AM CDT | Flash Flood Warning | ILX | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more | 5 hr |
| May 14, 2:01 AM CDT | Flash Flood Warning | PAH | Jefferson, Perry, Wayne | 3 hr |
| May 14, 2:21 AM CDT | Flash Flood Warning | PAH | Jackson | 3 hr |
| May 14, 2:23 AM CDT | Flash Flood Warning | LSX | Randolph | 4 hr |
| May 15, 5:43 AM CDT | Flash Flood Warning | DVN | Hancock, Henderson, McDonough, Warren | 6 hr |
| May 15, 9:03 AM CDT | Flash Flood Warning | ILX | Fulton, Knox | 6 hr |
| May 15, 9:40 AM CDT | Flash Flood Warning | DVN | Hancock, Henderson, McDonough, Warren | 6 hr |
| May 15, 10:28 AM CDT | Flash Flood Warning | ILX | Knox, Peoria, Stark | 5 hr |
| May 15, 12:09 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 6 hr |
| May 15, 2:35 PM CDT | Flash Flood Warning | ILX | Fulton, Knox, Peoria, Stark | 6 hr |
| May 15, 2:59 PM CDT | Flash Flood Warning | LSX | Adams | 5 hr |
| May 15, 3:32 PM CDT | Flash Flood Warning | ILX | Fulton, Schuyler | 6 hr |
| May 15, 4:17 PM CDT | Flash Flood Warning | ILX | Marshall, Peoria, Tazewell, Woodford | 6 hr |
| May 15, 4:48 PM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| May 15, 5:12 PM CDT | Flash Flood Warning | LSX | Brown, Pike | 6 hr |
| May 15, 5:46 PM CDT | Flash Flood Warning | ILX | McLean, Tazewell, Woodford | 5 hr |
| May 15, 5:46 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Ford, Grundy, Iroquois, Kankakee and 4 more | 6 hr |
| May 15, 5:54 PM CDT | Flash Flood Warning | ILX | Cass, Logan, Mason, Menard, Morgan, Sangamon and 2 more | 6 hr |
| May 15, 6:27 PM CDT | Flash Flood Warning | ILX | DeWitt, Macon | 6 hr |
| May 15, 6:29 PM CDT | Flash Flood Warning | LSX | Calhoun, Greene | 5 hr |
| May 15, 7:04 PM CDT | Flash Flood Warning | ILX | Champaign, Piatt, Vermilion | 6 hr |
| May 15, 7:35 PM CDT | Flash Flood Warning | ILX | Fulton, Knox, Marshall, Peoria, Schuyler, Stark and 2 more | 4 hr |
| May 15, 7:57 PM CDT | Flash Flood Warning | ILX | Christian, Moultrie, Shelby | 6 hr |
| May 15, 8:07 PM CDT | Flash Flood Warning | LOT | Iroquois | 6 hr |
| May 15, 8:18 PM CDT | Flash Flood Warning | ILX | Clark, Coles, Cumberland, Douglas, Edgar | 6 hr |
| May 25, 11:55 AM CDT | Flash Flood Warning | LSX | Madison | 5 hr |
| May 25, 12:15 PM CDT | Flash Flood Warning | ILX | Clark, Crawford, Lawrence | 6 hr |
| May 25, 1:59 PM CDT | Flash Flood Warning | ILX | Richland | 5 hr |
| May 25, 3:06 PM CDT | Flash Flood Warning | LSX | Macoupin | 6 hr |
| May 25, 7:03 PM CDT | Flash Flood Warning | LSX | Madison | 6 hr |
| May 26, 1:18 PM CDT | Flash Flood Warning | LSX | Bond, Macoupin, Madison, Montgomery | 6 hr |
| May 27, 6:08 PM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Marion | 6 hr |
| May 27, 6:50 PM CDT | Flash Flood Warning | LSX | Bond, Clinton, Madison, Saint Clair | 5 hr |
| May 27, 6:59 PM CDT | Flash Flood Warning | PAH | Wabash | 2 hr |
| May 27, 8:03 PM CDT | Flash Flood Warning | LSX | Bond, Madison, Saint Clair | 4 hr |
| Jun 1, 5:37 PM CDT | Flash Flood Warning | LOT | Boone, McHenry, Winnebago | 4 hr |
| Jun 1, 6:54 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 8 hr |
| Jun 1, 8:09 PM CDT | Flash Flood Warning | ILX | Vermilion | 6 hr |
| Jun 8, 1:44 AM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Kane, LaSalle, Lee, McHenry and 2 more | 8 hr |
| Jun 8, 6:46 PM CDT | Flash Flood Warning | LSX | Clinton, Saint Clair, Washington | 6 hr |
| Jun 8, 8:31 PM CDT | Flash Flood Warning | LSX | Monroe, Randolph | 6 hr |
| Jun 10, 8:58 PM CDT | Flash Flood Warning | LSX | Monroe, Saint Clair | 6 hr |
| Jun 11, 12:33 AM CDT | Flash Flood Warning | PAH | Gallatin, Hamilton, Saline, White | 3 hr |
| Jun 11, 2:00 AM CDT | Flash Flood Warning | DVN | Hancock | 5 hr |
| Jun 11, 2:45 AM CDT | Flash Flood Warning | LOT | Kankakee, Will | 86 min |
| Jun 11, 4:15 AM CDT | Flash Flood Warning | LOT | Kankakee, Will | 10 hr |
| Jun 11, 5:00 AM CDT | Flash Flood Warning | LOT | Grundy, LaSalle | 10 hr |
| Jun 11, 8:11 AM CDT | Flash Flood Warning | LOT | Cook, Will | 6 hr |
| Jun 16, 5:44 PM CDT | Flash Flood Warning | LOT | Cook, Kankakee, Will | 6 hr |
| Jun 19, 9:17 AM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Kane, McHenry, Ogle, Winnebago | 4 hr |
| Jun 19, 10:03 AM CDT | Flash Flood Warning | LOT | Cook, DuPage, Lake | 4 hr |
| Jun 19, 5:09 PM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Stephenson | 3 hr |
| Jun 19, 5:12 PM CDT | Flash Flood Warning | DVN | Mercer, Rock Island | 91 min |
| Jun 19, 5:36 PM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Lee, Ogle, Winnebago | 6 hr |
| Jun 19, 6:00 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kane, Lake, McHenry | 6 hr |
| Jun 20, 12:45 AM CDT | Flash Flood Warning | ILX | Clay, Crawford, Effingham, Jasper | 4 hr |
| Jun 20, 6:53 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jun 21, 5:36 PM CDT | Flash Flood Warning | ILX | Jasper | 4 hr |
| Jun 22, 4:25 PM CDT | Flash Flood Warning | PAH | Johnson, Williamson | 2 hr |
| Jun 24, 1:54 PM CDT | Flash Flood Warning | LOT | Cook | 117 min |
| Jun 24, 3:45 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jul 5, 12:53 AM CDT | Flash Flood Warning | LSX | Clinton | 6 hr |
| Jul 10, 11:46 AM CDT | Flash Flood Warning | DVN | Henry, Rock Island, Whiteside | 8 hr |
| Jul 11, 6:47 AM CDT | Flash Flood Warning | LSX | Bond, Fayette, Montgomery | 4 hr |
| Jul 11, 7:15 AM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Marion, Washington | 4 hr |
| Jul 11, 7:48 AM CDT | Flash Flood Warning | PAH | Jefferson | 3 hr |
| Jul 11, 9:38 AM CDT | Flash Flood Warning | PAH | Franklin, Jackson, Williamson | 3 hr |
| Jul 11, 10:44 AM CDT | Flash Flood Warning | PAH | Jefferson | 3 hr |
| Jul 11, 12:29 PM CDT | Flash Flood Warning | PAH | Jackson, Williamson | 2 hr |
| Jul 11, 9:14 PM CDT | Flash Flood Warning | LSX | Randolph | 6 hr |
| Jul 11, 9:15 PM CDT | Flash Flood Warning | PAH | Jackson, Perry | 76 min |
| Jul 11, 9:23 PM CDT | Flash Flood Warning | PAH | Jackson, Union | 2 hr |
| Jul 15, 2:15 AM CDT | Flash Flood Warning | DVN | Hancock, Henderson, McDonough, Warren | 5 hr |
| Jul 15, 8:22 AM CDT | Flash Flood Warning | LSX | Greene, Jersey, Macoupin | 5 hr |
| Jul 16, 11:16 PM CDT | Flash Flood Warning | ILX | Clay, Richland | 5 hr |
| Jul 23, 4:19 PM CDT | Flash Flood Warning | LOT | Cook | 3 hr |
| Jul 24, 9:49 PM CDT | Flash Flood Warning | DVN | Henry, Rock Island, Whiteside | 4 hr |
| Jul 27, 9:49 PM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Stephenson | 6 hr |
| Jul 27, 10:28 PM CDT | Flash Flood Warning | DVN | Whiteside | 5 hr |
| Jul 27, 10:31 PM CDT | Flash Flood Warning | LOT | Lee, Ogle | 6 hr |
| Jul 28, 11:10 AM CDT | Flash Flood Warning | PAH | Hardin, Johnson, Massac, Pope | 110 min |
| Jul 28, 2:34 PM CDT | Flash Flood Warning | ILX | Christian, Sangamon | 6 hr |
| Jul 28, 4:07 PM CDT | Flash Flood Warning | LOT | Ford, Iroquois | 8 hr |
| Jul 28, 6:14 PM CDT | Flash Flood Warning | LSX | Pike | 4 hr |
| Aug 3, 12:41 PM CDT | Flash Flood Warning | LSX | Adams | 3 hr |
| Aug 4, 8:06 PM CDT | Flash Flood Warning | PAH | Alexander, Pulaski, Union | 3 hr |
| Aug 4, 8:49 PM CDT | Flash Flood Warning | PAH | Johnson, Massac, Pope | 3 hr |
| Aug 4, 9:54 PM CDT | Flash Flood Warning | PAH | Alexander | 111 min |
| Aug 9, 2:03 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Aug 9, 8:54 PM CDT | Flash Flood Warning | DVN | Henderson, Henry, Mercer, Warren | 3 hr |
| Aug 9, 9:36 PM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 3 hr |
| Aug 17, 1:57 AM CDT | Flash Flood Warning | LSX | Adams | 4 hr |
| Aug 17, 2:02 AM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 7 hr |
| Aug 19, 7:08 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Aug 19, 7:28 PM CDT | Flash Flood Warning | ILX | Cumberland, Effingham, Jasper | 3 hr |
| Aug 26, 10:14 AM CDT | Flash Flood Warning | DVN | Rock Island | 6 hr |
| Aug 26, 11:51 AM CDT | Flash Flood Warning | DVN | Carroll, Whiteside | 6 hr |
| Aug 27, 2:06 AM CDT | Flash Flood Warning | DVN | Carroll, Rock Island, Whiteside | 3 hr |
| Aug 27, 9:34 PM CDT | Flash Flood Warning | DVN | Hancock, Henderson | 2 hr |
| Aug 27, 10:37 PM CDT | Flash Flood Warning | ILX | Champaign | 4 hr |
| Aug 28, 12:01 AM CDT | Flash Flood Warning | ILX | Vermilion | 2 hr |
| Sep 6, 2:11 AM CDT | Flash Flood Warning | PAH | Hamilton, Saline | 6 hr |
| Sep 6, 3:16 AM CDT | Flash Flood Warning | PAH | White | 3 hr |
| Sep 6, 4:19 AM CDT | Flash Flood Warning | PAH | Williamson | 4 hr |
| Sep 6, 6:35 PM CDT | Flash Flood Warning | ILX | Sangamon | 2 hr |
| Sep 20, 10:49 AM CDT | Flash Flood Warning | ILX | Morgan, Scott | 3 hr |
| Sep 20, 11:06 AM CDT | Flash Flood Warning | LSX | Greene, Macoupin | 4 hr |
| Sep 20, 7:25 PM CDT | Flash Flood Warning | ILX | Crawford | 6 hr |
| Sep 20, 10:02 PM CDT | Flash Flood Warning | PAH | Edwards, Wabash | 4 hr |
| Oct 8, 8:51 AM CDT | Flash Flood Warning | LSX | Bond, Calhoun, Jersey, Macoupin, Madison, Montgomery | 4 hr |
| Oct 8, 9:59 AM CDT | Flash Flood Warning | LSX | Fayette | 3 hr |
| Oct 8, 11:56 AM CDT | Flash Flood Warning | ILX | Effingham, Jasper | 6 hr |
| Oct 8, 12:42 PM CDT | Flash Flood Warning | LSX | Bond, Calhoun, Fayette, Jersey, Macoupin, Madison and 1 more | 5 hr |
| Oct 8, 8:16 PM CDT | Flash Flood Warning | PAH | Johnson, Massac, Pope | 78 min |
| Oct 8, 8:40 PM CDT | Flash Flood Warning | PAH | Hardin, Pope | 54 min |
| Oct 8, 8:58 PM CDT | Flash Flood Warning | PAH | Edwards, Franklin, Hamilton, Jackson, Jefferson, Perry and 5 more | 6 hr |
| Oct 8, 9:43 PM CDT | Flash Flood Warning | PAH | Jackson, Union | 3 hr |
| Oct 8, 10:24 PM CDT | Flash Flood Warning | PAH | Gallatin, Saline, Wabash, White | 6 hr |
| Oct 8, 10:36 PM CDT | Flash Flood Warning | PAH | Alexander, Gallatin, Hardin, Jackson, Johnson, Pope and 4 more | 6 hr |
| Oct 8, 11:27 PM CDT | Flash Flood Warning | PAH | Gallatin, Hardin, Pope | 6 hr |
| Oct 8, 11:39 PM CDT | Flash Flood Warning | PAH | Alexander, Johnson, Massac, Pope, Pulaski | 6 hr |
| Oct 29, 4:19 PM CDT | Flash Flood Warning | LSX | Calhoun, Greene, Jersey, Pike | 6 hr |
| Oct 29, 6:55 PM CDT | Flash Flood Warning | DVN | McDonough | 9 hr |
| Oct 29, 9:33 PM CDT | Flash Flood Warning | DVN | Hancock, Henderson | 8 hr |
| Oct 29, 9:39 PM CDT | Flash Flood Warning | LSX | Adams, Brown, Calhoun, Greene, Jersey, Pike | 9 hr |
| Oct 30, 4:25 AM CDT | Flash Flood Warning | LSX | Monroe, Saint Clair | 6 hr |
| Oct 30, 7:02 AM CDT | Flash Flood Warning | LSX | Bond, Clinton, Madison | 6 hr |
| Oct 30, 7:34 AM CDT | Flash Flood Warning | LSX | Fayette, Marion, Montgomery | 5 hr |
| Dec 24, 1:48 PM CST | Flash Flood Warning | LSX | Randolph | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jackson County9
- Hancock County9
- Bond County9
- Fayette County9
- Cook County8
- Williamson County8
- Madison County8
- Johnson County7
- McDonough County7
- Pope County7
- Saline County6
- Jefferson County6
- Adams County6
- Saint Clair County6
- Jasper County6
- Henderson County6
- Macoupin County6
- Clinton County6
- Iroquois County5
- Pike County5
- Alexander County5
- Massac County5
- Randolph County5
- Effingham County5
- Carroll County5
- Jo Daviess County5
- Boone County5
- Ogle County5
- Winnebago County5
- Fulton County5
- Kankakee County5
- Will County5
- Calhoun County5
- Greene County5
- Montgomery County5
- Rock Island County5
- Whiteside County5
- Jersey County5
- DuPage County4
- Kane County4
60 more counties
- Ford County4
- Pulaski County4
- Perry County4
- Monroe County4
- Champaign County4
- Clay County4
- Stephenson County4
- Morgan County4
- Christian County4
- Sangamon County4
- Woodford County4
- Vermilion County4
- Clark County4
- Cumberland County4
- Crawford County4
- Warren County4
- Knox County4
- Peoria County4
- Tazewell County4
- Wabash County4
- McHenry County4
- Gallatin County4
- White County4
- Union County4
- Hardin County4
- Franklin County3
- Washington County3
- Schuyler County3
- Scott County3
- Moultrie County3
- Douglas County3
- Edgar County3
- Richland County3
- Stark County3
- LaSalle County3
- Marion County3
- DeKalb County3
- Lee County3
- Hamilton County3
- Henry County3
- Kendall County2
- Cass County2
- Livingston County2
- McLean County2
- Macon County2
- Piatt County2
- Coles County2
- Shelby County2
- Lawrence County2
- Wayne County2
- Marshall County2
- Brown County2
- Grundy County2
- Lake County2
- Mercer County2
- Edwards County2
- Logan County1
- Mason County1
- Menard County1
- DeWitt County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.