Flood Watches in Illinois
347 flood watches since 1986. 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 flood watches reaches back to 2005.
Flood Watches by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Flood Watches
- 347
- Busiest year
- 202662 flood watches
- Average year
- 17over 20 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- DuPage County57
- Pulaski County54
- Saline County54
- Alexander County53
- Johnson County52
- Union County52
- Grundy County52
- Massac County51
- Williamson County51
- Kendall County51
- Pope County50
- LaSalle County50
- Gallatin County49
- White County49
- Kane County49
- Lawrence County49
- Richland County49
- Hamilton County48
- Clay County48
- Crawford County48
- Jasper County48
- Clark County47
- Hardin County47
- Jackson County47
- DeKalb County47
- Franklin County46
- Iroquois County46
- Kankakee County46
- Ford County44
- Lee County44
- Cumberland County43
- Effingham County43
- Randolph County43
- Edwards County42
- Macon County42
- Wabash County42
- Wayne County42
- Lake County42
- Washington County42
- Edgar County40
62 more counties
- Jefferson County40
- Perry County40
- Boone County40
- Livingston County40
- Ogle County40
- Christian County39
- Shelby County39
- McHenry County39
- Monroe County39
- Saint Clair County39
- Sangamon County39
- Winnebago County39
- Cook County39
- Will County39
- Champaign County38
- Coles County38
- Moultrie County38
- Piatt County38
- Vermilion County38
- Logan County37
- Rock Island County37
- Clinton County37
- Madison County37
- Douglas County36
- McLean County36
- DeWitt County35
- Fulton County35
- Mason County35
- Menard County35
- Hancock County35
- Henderson County35
- Marion County35
- Warren County35
- Tazewell County34
- Whiteside County34
- Knox County34
- McDonough County34
- Bond County33
- Mercer County33
- Morgan County33
- Stark County33
- Cass County32
- Fayette County32
- Henry County32
- Jersey County32
- Marshall County32
- Scott County32
- Peoria County31
- Woodford County31
- Schuyler County30
- Calhoun County30
- Macoupin County30
- Carroll County29
- Jo Daviess County28
- Greene County28
- Montgomery County28
- Stephenson County27
- Bureau County27
- Putnam County27
- Pike County26
- Adams County25
- Brown County23
The latest flood watches
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 1:47 PM CDT | Flood Watch | LOT | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more | 47 hr |
| Sep 18, 1:23 AM CDT | Flood Watch | DVN | Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more | 60 hr |
| Sep 16, 12:39 PM CDT | Flood Watch | ILX | Knox, Marshall, Stark | 16 hr |
| Sep 16, 12:32 PM CDT | Flood Watch | DVN | Bureau, Carroll, Henderson, Henry, Mercer, Putnam and 3 more | 20 hr |
| Aug 19, 8:23 PM CDT | Flood Watch | PAH | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 11 hr |
| Aug 19, 2:56 AM CDT | Flood Watch | LOT | Ford, Iroquois, Livingston | 22 hr |
| Aug 19, 2:35 AM CDT | Flood Watch | ILX | Champaign, DeWitt, Fulton, Knox, Logan, McLean and 10 more | 22 hr |
| Aug 15, 7:12 PM CDT | Flood Watch | ILX | Champaign, DeWitt, Fulton, Knox, McLean, Marshall and 6 more | 13 hr |
| Aug 15, 6:39 PM CDT | Flood Watch | LOT | Cook, Ford, Grundy, Iroquois, Kankakee, Kendall and 3 more | 13 hr |
| Aug 14, 9:48 PM CDT | Flood Watch | LSX | Adams, Brown | 12 hr |
| Aug 14, 12:15 PM CDT | Flood Watch | ILX | Champaign, DeWitt, Douglas, Edgar, Fulton, Knox and 10 more | 22 hr |
| Aug 14, 12:01 PM CDT | Flood Watch | LOT | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 8 more | 22 hr |
Nearby
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.