Alert archive / Illinois / River Flood Advisories
River Flood Advisories in Illinois, 2021
36 river flood advisories in 2021. 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 in 2021. Tap one for its archive.
- River Flood Advisories
- 36
- Busiest month
- June9 river flood advisories
- Busiest day
- June 27, 20215 river flood advisories
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 29, 12:07 PM CST | River Flood Advisory | LOT | Winnebago | 21 hr |
| Feb 28, 4:25 PM CST | River Flood Advisory | LOT | LaSalle | 61 hr |
| Feb 28, 8:32 PM CST | River Flood Advisory | LOT | Bureau, LaSalle, Putnam | 69 hr |
| Mar 1, 10:26 AM CST | River Flood Advisory | LOT | Grundy, LaSalle | 32 hr |
| Mar 9, 8:46 AM CST | River Flood Advisory | LOT | Lake | 52 hr |
| Mar 10, 9:34 PM CST | River Flood Advisory | LOT | Lake | 9 hr |
| Mar 10, 9:41 PM CST | River Flood Advisory | LOT | Winnebago | 7 days |
| Mar 11, 8:12 PM CST | River Flood Advisory | LOT | Lake | 60 hr |
| Mar 18, 7:26 PM CDT | River Flood Advisory | LOT | Iroquois | 45 hr |
| Mar 28, 6:39 AM CDT | River Flood Advisory | LOT | Iroquois | 33 hr |
| Apr 10, 2:34 PM CDT | River Flood Advisory | LOT | Winnebago | 44 hr |
| May 9, 10:43 AM CDT | River Flood Advisory | LOT | Cook | 5 hr |
| May 9, 10:43 AM CDT | River Flood Advisory | LOT | Cook | 21 hr |
| May 10, 8:30 AM CDT | River Flood Advisory | LOT | Iroquois | 23 hr |
| May 10, 12:51 PM CDT | River Flood Advisory | LOT | LaSalle | 30 hr |
| May 10, 12:51 PM CDT | River Flood Advisory | LOT | Bureau, LaSalle, Putnam | 60 hr |
| May 11, 8:12 AM CDT | River Flood Advisory | LOT | Bureau, LaSalle, Putnam | 35 hr |
| Jun 25, 8:52 AM CDT | River Flood Advisory | LOT | DuPage, Will | 22 hr |
| Jun 26, 9:24 PM CDT | River Flood Advisory | LOT | Will | 10 hr |
| Jun 26, 9:28 PM CDT | River Flood Advisory | LOT | DuPage, Will | 23 hr |
| Jun 26, 11:03 PM CDT | River Flood Advisory | LOT | Grundy, Kankakee, Will | 6 days |
| Jun 27, 11:06 AM CDT | River Flood Advisory | LOT | Grundy | 25 hr |
| Jun 27, 11:45 AM CDT | River Flood Advisory | LOT | Iroquois | 34 hr |
| Jun 28, 11:28 AM CDT | River Flood Advisory | LOT | Grundy, LaSalle | 32 hr |
| Jun 29, 1:36 PM CDT | River Flood Advisory | LOT | Cook | 15 hr |
| Jun 30, 4:48 PM CDT | River Flood Advisory | LOT | Cook | 3 hr |
| Jun 30, 10:08 PM CDT | River Flood Advisory | LOT | LaSalle | 16 hr |
| Oct 25, 3:02 AM CDT | River Flood Advisory | LOT | DuPage, Will | 36 hr |
| Oct 25, 11:39 AM CDT | River Flood Advisory | LOT | Will | 3 hr |
| Oct 25, 12:26 PM CDT | River Flood Advisory | LOT | Grundy, Kankakee, Will | 7 days |
| Oct 25, 7:53 PM CDT | River Flood Advisory | LOT | Kankakee | 19 hr |
| Oct 26, 9:44 AM CDT | River Flood Advisory | LOT | Livingston | 20 hr |
| Oct 30, 1:50 AM CDT | River Flood Advisory | LOT | Grundy, LaSalle | 49 hr |
| Oct 30, 10:36 AM CDT | River Flood Advisory | LOT | Grundy | 10 hr |
| Oct 30, 11:24 AM CDT | River Flood Advisory | LOT | LaSalle | 62 hr |
| Oct 30, 9:02 PM CDT | River Flood Advisory | LOT | Iroquois | 18 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.