Alert archive / Illinois / Flash Flood Watches
Flash Flood Watches in Illinois, 2017
23 flash flood watches in 2017. 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 2017. Tap one for its archive.
- Flash Flood Watches
- 23
- Busiest month
- July9 flash flood watches
- Busiest day
- July 12, 20174 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 |
|---|---|---|---|---|
| Jan 17, 12:41 PM CST | Flash Flood Watch | DVN | Henry | 27 hr |
| Feb 28, 2:49 PM CST | Flash Flood Watch | PAH | Gallatin, Hardin, Johnson, Massac, Pope, Pulaski and 2 more | 18 hr |
| Apr 27, 3:57 AM CDT | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 4 days |
| Apr 27, 4:29 AM CDT | Flash Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more | 4 days |
| Apr 27, 2:41 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 25 more | 5 days |
| Apr 28, 3:05 PM CDT | Flash Flood Watch | LOT | DuPage, Ford, Grundy, Iroquois, Kane, Kankakee and 3 more | 61 hr |
| May 2, 4:07 AM CDT | Flash Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 64 hr |
| May 2, 1:42 PM CDT | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Jackson and 9 more | 62 hr |
| May 2, 2:55 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 19 more | 61 hr |
| May 20, 7:28 AM CDT | Flash Flood Watch | ILX | Sangamon | 35 hr |
| Jun 22, 9:31 AM CDT | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more | 31 hr |
| Jun 28, 8:03 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Kane, Lake, Lee and 3 more | 8 hr |
| Jul 12, 9:39 AM CDT | Flash Flood Watch | DVN | Jo Daviess | 6 hr |
| Jul 12, 2:32 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 12 hr |
| Jul 12, 3:13 PM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 12 hr |
| Jul 12, 3:21 PM CDT | Flash Flood Watch | ILX | Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more | 11 hr |
| Jul 20, 2:15 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 42 hr |
| Jul 20, 3:55 PM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more | 41 hr |
| Jul 26, 3:07 AM CDT | Flash Flood Watch | ILX | Cass, Christian, Fulton, Knox, Logan, Marshall and 10 more | 12 hr |
| Jul 26, 3:23 AM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 20 hr |
| Jul 26, 3:55 AM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 19 hr |
| Oct 14, 2:55 AM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 25 hr |
| Oct 14, 3:30 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more | 19 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Henry County5
- DuPage County5
- Kane County5
- Gallatin County4
- Johnson County4
- Saline County4
- White County4
- Sangamon County4
- Grundy County4
- Kendall County4
- LaSalle County4
- Boone County4
- DeKalb County4
- Lake County4
- Lee County4
- McHenry County4
- Ogle County4
- Winnebago County4
- Bureau County4
- Putnam County4
- Rock Island County4
- Whiteside County4
- Hardin County3
- Massac County3
- Pope County3
- Pulaski County3
- Alexander County3
- Edwards County3
- Franklin County3
- Hamilton County3
- Jefferson County3
- Union County3
- Wabash County3
- Wayne County3
- Williamson County3
- Cass County3
- Christian County3
- Logan County3
- Marshall County3
- Menard County3
60 more counties
- Morgan County3
- Peoria County3
- Scott County3
- Tazewell County3
- Woodford County3
- Jo Daviess County3
- Mercer County3
- Jackson County2
- Perry County2
- Bond County2
- Calhoun County2
- Clinton County2
- Fayette County2
- Greene County2
- Jersey County2
- Macoupin County2
- Madison County2
- Marion County2
- Monroe County2
- Montgomery County2
- Pike County2
- Randolph County2
- Saint Clair County2
- Washington County2
- Champaign County2
- Clark County2
- Clay County2
- Coles County2
- Crawford County2
- Cumberland County2
- DeWitt County2
- Douglas County2
- Edgar County2
- Effingham County2
- Jasper County2
- Lawrence County2
- McLean County2
- Macon County2
- Mason County2
- Moultrie County2
- Piatt County2
- Richland County2
- Shelby County2
- Vermilion County2
- Ford County2
- Iroquois County2
- Kankakee County2
- Livingston County2
- Hancock County2
- Henderson County2
- McDonough County2
- Warren County2
- Fulton County2
- Knox County2
- Stark County2
- Carroll County2
- Stephenson County2
- Schuyler County1
- Adams County1
- Brown County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.