Areal Flood Warnings in Illinois
836 areal flood warnings 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 areal flood warnings reaches back to 2005.
Areal Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Areal Flood Warnings
- 836
- Busiest year
- 201979 areal flood warnings
- Average year
- 44over 19 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.
- Cook County68
- Will County59
- Marion County55
- Fayette County52
- LaSalle County51
- Saint Clair County51
- Clinton County49
- Kankakee County47
- Madison County47
- DeKalb County45
- Lawrence County45
- Lee County44
- DuPage County43
- Crawford County42
- Effingham County41
- Grundy County41
- Iroquois County41
- Kane County41
- Kendall County41
- Washington County41
- Pope County41
- Bond County40
- Ogle County39
- Massac County39
- Livingston County38
- Monroe County37
- Randolph County37
- Lake County36
- Alexander County34
- Cumberland County34
- McHenry County34
- Montgomery County34
- Jasper County33
- Pulaski County33
- Calhoun County32
- Clark County32
- Clay County32
- Greene County32
- Franklin County32
- Hardin County32
62 more counties
- Union County32
- Boone County31
- Ford County31
- Jersey County31
- Macoupin County31
- Jackson County31
- Richland County30
- Johnson County30
- Williamson County30
- Saline County29
- Hamilton County28
- Shelby County27
- Perry County27
- Wayne County27
- White County27
- Coles County26
- Vermilion County26
- Gallatin County26
- Wabash County26
- Adams County24
- Champaign County24
- Jefferson County24
- Edwards County24
- Edgar County23
- Pike County23
- Sangamon County23
- Winnebago County23
- Douglas County22
- McLean County22
- Moultrie County22
- Woodford County22
- Henderson County21
- Tazewell County21
- Hancock County20
- Stephenson County20
- Fulton County19
- Logan County19
- Peoria County19
- Brown County17
- Christian County17
- Henry County16
- Knox County16
- Morgan County16
- Marshall County15
- Piatt County15
- Rock Island County15
- Stark County15
- Macon County13
- Schuyler County13
- Scott County13
- Whiteside County13
- Jo Daviess County12
- Mason County12
- DeWitt County11
- McDonough County11
- Mercer County11
- Warren County11
- Carroll County11
- Menard County9
- Cass County8
- Bureau County7
- Putnam County6
The latest areal flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 11:03 AM CDT | Areal Flood Warning | LOT | Lee | 8 hr |
| Sep 20, 10:10 AM CDT | Areal Flood Warning | LOT | Lee | 25 hr |
| Aug 15, 1:40 PM CDT | Areal Flood Warning | ILX | Champaign, Vermilion | 46 hr |
| Aug 15, 12:40 PM CDT | Areal Flood Warning | ILX | McLean | 21 hr |
| Aug 15, 8:04 AM CDT | Areal Flood Warning | LOT | Ford | 9 hr |
| Aug 15, 7:40 AM CDT | Areal Flood Warning | ILX | McLean | 26 hr |
| Aug 15, 7:33 AM CDT | Areal Flood Warning | ILX | McLean | 65 min |
| Aug 15, 6:37 AM CDT | Areal Flood Warning | ILX | Fulton, Knox, Mason, Peoria, Tazewell, Woodford | 27 hr |
| Aug 14, 7:13 AM CDT | Areal Flood Warning | LOT | Ford, Iroquois | 15 hr |
| Aug 10, 2:32 AM CDT | Areal Flood Warning | LOT | Grundy, LaSalle, Livingston | 3 hr |
| Aug 1, 11:37 PM CDT | Areal Flood Warning | LOT | Cook, Will | 11 hr |
| Aug 1, 5:44 PM CDT | Areal Flood Warning | LOT | Cook, Will | 6 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.