Alert archive / Illinois / Flash Flood Watches
Flash Flood Watches in Illinois, 2009
45 flash flood watches 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 watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Flash Flood Watches
- 45
- Busiest month
- August10 flash flood watches
- Busiest day
- March 9, 20094 flash flood watches
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 9, 4:01 PM CST | Flash Flood Watch | LSX | Bond, Brown, Calhoun, Clinton, Fayette, Greene and 10 more | 44 hr |
| Mar 6, 11:21 AM CST | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 51 hr |
| Mar 6, 3:05 PM CST | Flash Flood Watch | ILX | Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more | 47 hr |
| Mar 6, 3:28 PM CST | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 48 hr |
| Mar 7, 9:54 PM CST | Flash Flood Watch | LSX | Adams | 8 hr |
| Mar 9, 3:03 AM CDT | Flash Flood Watch | ILX | Fulton, Knox, McLean, Marshall, Mason, Peoria and 4 more | 33 hr |
| Mar 9, 3:39 AM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 24 hr |
| Mar 9, 4:19 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more | 32 hr |
| Mar 9, 4:25 AM CDT | Flash Flood Watch | LSX | Adams, Brown | 27 hr |
| Apr 26, 3:04 AM CDT | Flash Flood Watch | DVN | Jo Daviess | 24 hr |
| Apr 29, 3:53 AM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 36 hr |
| Apr 29, 3:10 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 20 hr |
| Apr 29, 3:11 PM CDT | Flash Flood Watch | ILX | Cass, Christian, Fulton, Knox, Logan, McLean and 11 more | 19 hr |
| Apr 29, 3:35 PM CDT | Flash Flood Watch | DVN | Hancock, Henderson, McDonough, Putnam, Warren | 19 hr |
| May 1, 3:58 AM CDT | Flash Flood Watch | LSX | Randolph | 35 hr |
| May 1, 4:08 AM CDT | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 55 hr |
| May 13, 3:04 PM CDT | Flash Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 12 hr |
| May 14, 3:02 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more | 32 hr |
| May 14, 3:19 PM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 31 hr |
| May 14, 3:34 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 30 hr |
| May 14, 3:51 PM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 10 more | 32 hr |
| Jun 9, 3:23 PM CDT | Flash Flood Watch | ILX | Cass, Morgan, Schuyler, Scott | 11 hr |
| Jun 9, 3:37 PM CDT | Flash Flood Watch | DVN | Hancock, McDonough | 5 hr |
| Jun 9, 4:00 PM CDT | Flash Flood Watch | LSX | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 4 more | 12 hr |
| Jun 15, 3:42 PM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 20 hr |
| Jun 19, 1:08 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 8 hr |
| Jul 3, 9:15 PM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 7 hr |
| Aug 3, 3:52 PM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 17 hr |
| Aug 9, 3:41 PM CDT | Flash Flood Watch | DVN | Carroll, Jo Daviess, Stephenson | 11 hr |
| Aug 17, 3:03 AM CDT | Flash Flood Watch | ILX | Cass, DeWitt, Fulton, Knox, Logan, McLean and 11 more | 12 hr |
| Aug 17, 3:49 AM CDT | Flash Flood Watch | DVN | Hancock, Henderson, McDonough, Warren | 11 hr |
| Aug 17, 4:09 AM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 11 hr |
| Aug 19, 3:20 PM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 10 more | 13 hr |
| Aug 19, 8:56 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 10 hr |
| Aug 26, 9:10 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more | 42 hr |
| Aug 26, 1:59 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 37 hr |
| Aug 26, 3:06 PM CDT | Flash Flood Watch | ILX | Knox, Marshall, Stark | 24 hr |
| Oct 7, 3:43 AM CDT | Flash Flood Watch | ILX | Champaign, Christian, Clark, Clay, Coles, Crawford and 12 more | 57 hr |
| Oct 7, 4:18 AM CDT | Flash Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 47 hr |
| Oct 24, 5:28 AM CDT | Flash Flood Watch | ILX | Sangamon | 13 hr |
| Oct 28, 4:20 AM CDT | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 61 hr |
| Oct 28, 3:21 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 4 days |
| Oct 28, 3:58 PM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 47 hr |
| Oct 29, 2:46 PM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 13 hr |
| Dec 24, 3:34 PM CST | Flash Flood Watch | ILX | Sangamon | 53 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Brown County11
- Adams County11
- Pike County10
- Calhoun County9
- Greene County9
- Jersey County9
- Macoupin County9
- Madison County9
- Monroe County9
- Saint Clair County9
- Bond County8
- Clinton County8
- Fayette County8
- Marion County8
- Montgomery County8
- Washington County8
- Knox County8
- Marshall County8
- Stark County8
- Randolph County7
- Hancock County7
- Henderson County7
- McDonough County7
- Warren County7
- Fulton County7
- McLean County7
- Peoria County7
- Tazewell County7
- Woodford County7
- Schuyler County7
- Sangamon County7
- Putnam County6
- Boone County6
- DeKalb County6
- DuPage County6
- Grundy County6
- Kane County6
- Kendall County6
- Lake County6
- LaSalle County6
60 more counties
- Lee County6
- McHenry County6
- Ogle County6
- Winnebago County6
- Mason County6
- Cass County6
- Morgan County6
- Scott County6
- Bureau County5
- Carroll County5
- Henry County5
- Jo Daviess County5
- Mercer County5
- Rock Island County5
- Stephenson County5
- Ford County5
- Iroquois County5
- Kankakee County5
- Livingston County5
- Christian County5
- Logan County5
- Menard County5
- Whiteside County4
- Champaign County4
- Coles County4
- DeWitt County4
- Douglas County4
- Edgar County4
- Macon County4
- Moultrie County4
- Piatt County4
- Shelby County4
- Vermilion County4
- Clark County3
- Clay County3
- Crawford County3
- Cumberland County3
- Effingham County3
- Jasper County3
- Lawrence County3
- Richland County3
- 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
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.