River Flood Advisories in Illinois
1,658 river flood advisories 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 river flood advisories reaches back to 2005.
River Flood Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- River Flood Advisories
- 1,658
- Busiest year
- 2019260 river flood advisories
- Average year
- 87over 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.
- LaSalle County236
- Will County231
- Cook County185
- Grundy County165
- Winnebago County165
- Kane County134
- Iroquois County108
- Lake County106
- Kendall County95
- Ogle County92
- Boone County77
- Kankakee County67
- Bureau County55
- Lee County43
- McHenry County40
- Lawrence County34
- Crawford County29
- Wabash County27
- Putnam County27
- DuPage County24
- DeKalb County18
- Rock Island County16
- Henry County11
- Livingston County11
- Whiteside County10
- Clark County9
- Gallatin County5
- Hancock County5
- Mercer County5
- White County5
- Henderson County5
- Alexander County5
- Edwards County4
- Massac County4
- Pope County4
- Stephenson County3
- Jackson County3
- Pulaski County2
- Union County2
- Jo Daviess County1
3 more counties
The latest river flood advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 23, 7:37 PM CST | River Flood Advisory | LOT | Kankakee | 8 days |
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.