Alert archive / Illinois / River Flood Warnings / 2020
River Flood Warnings in Illinois, April 2020
50 river flood warnings in April 2020. 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 warnings reaches back to 2005.
River Flood Warnings by county
Each county as a circle sized by its count in April 2020. Tap one for its archive.
- River Flood Warnings
- 50
- Busiest day
- April 29, 202016 river flood warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Apr 2, 8:53 PM CDT | River Flood Warning | DVN | Carroll, Jo Daviess | 11 days |
| Apr 3, 10:18 AM CDT | River Flood Warning | LSX | Clinton | 5 days |
| Apr 12, 10:20 AM CDT | River Flood Warning | DVN | Hancock | 4 days |
| Apr 13, 11:54 AM CDT | River Flood Warning | PAH | Pulaski | 29 days |
| Apr 17, 8:53 AM CDT | River Flood Warning | DVN | Hancock | 70 hr |
| Apr 25, 8:57 AM CDT | River Flood Warning | ILX | Cass, Mason | 13 days |
| Apr 25, 9:09 AM CDT | River Flood Warning | ILX | Cass, Fulton, Mason | 55 days |
| Apr 25, 9:09 AM CDT | River Flood Warning | LSX | Calhoun, Greene, Jersey | 54 days |
| Apr 25, 9:10 AM CDT | River Flood Warning | ILX | Brown, Cass, Morgan, Schuyler | 57 days |
| Apr 25, 7:16 PM CDT | River Flood Warning | LSX | Brown | 24 hr |
| Apr 25, 7:38 PM CDT | River Flood Warning | LSX | Pike, Scott | 52 days |
| Apr 26, 1:15 AM CDT | River Flood Warning | ILX | McLean, Tazewell, Woodford | 42 hr |
| Apr 26, 8:57 AM CDT | River Flood Warning | ILX | Cass, Mason, Menard | 9 days |
| Apr 26, 9:58 AM CDT | River Flood Warning | LSX | Madison | 6 days |
| Apr 26, 11:31 AM CDT | River Flood Warning | PAH | Alexander | 8 days |
| Apr 26, 12:02 PM CDT | River Flood Warning | ILX | Clay, Richland | 9 days |
| Apr 26, 1:55 PM CDT | River Flood Warning | LOT | LaSalle | 16 hr |
| Apr 27, 2:01 PM CDT | River Flood Warning | ILX | Mason, Menard | 11 hr |
| Apr 28, 8:59 AM CDT | River Flood Warning | PAH | Gallatin, Wayne, White | 6 days |
| Apr 29, 7:36 AM CDT | River Flood Warning | ILX | Piatt | 5 days |
| Apr 29, 9:40 AM CDT | River Flood Warning | LSX | Fayette | 3 days |
| Apr 29, 9:54 AM CDT | River Flood Warning | LOT | Lake | 6 days |
| Apr 29, 9:54 AM CDT | River Flood Warning | LOT | Lake | 8 days |
| Apr 29, 9:54 AM CDT | River Flood Warning | LOT | Lake | 8 days |
| Apr 29, 9:54 AM CDT | River Flood Warning | LOT | Cook | 7 days |
| Apr 29, 9:54 AM CDT | River Flood Warning | LOT | Kane, McHenry | 21 days |
| Apr 29, 11:03 AM CDT | River Flood Warning | LSX | Brown | 45 days |
| Apr 29, 11:03 AM CDT | River Flood Warning | LSX | Morgan, Pike | 45 days |
| Apr 29, 1:46 PM CDT | River Flood Warning | LOT | DuPage, Will | 65 hr |
| Apr 29, 1:46 PM CDT | River Flood Warning | LOT | Kane, Kendall | 68 hr |
| Apr 29, 2:31 PM CDT | River Flood Warning | LOT | LaSalle | 4 days |
| Apr 29, 2:31 PM CDT | River Flood Warning | LOT | Bureau, LaSalle, Putnam | 21 days |
| Apr 29, 4:31 PM CDT | River Flood Warning | IND | Clark, Crawford | 3 days |
| Apr 29, 4:31 PM CDT | River Flood Warning | IND | Crawford, Lawrence | 3 days |
| Apr 29, 4:31 PM CDT | River Flood Warning | IND | Crawford, Lawrence | 4 days |
| Apr 29, 8:52 PM CDT | River Flood Warning | LOT | Cook | 30 hr |
| Apr 29, 9:01 PM CDT | River Flood Warning | ILX | McLean, Tazewell, Woodford | 46 hr |
| Apr 29, 9:23 PM CDT | River Flood Warning | LOT | LaSalle | 52 hr |
| Apr 29, 9:40 PM CDT | River Flood Warning | LOT | Grundy | 57 hr |
| Apr 29, 9:52 PM CDT | River Flood Warning | LOT | LaSalle | 56 hr |
| Apr 29, 9:58 PM CDT | River Flood Warning | MKX | Lake | 6 days |
| Apr 29, 10:21 PM CDT | River Flood Warning | LOT | Winnebago | 11 hr |
| Apr 29, 10:39 PM CDT | River Flood Warning | LOT | Cook | 38 hr |
| Apr 30, 6:30 AM CDT | River Flood Warning | LOT | Will | 34 hr |
| Apr 30, 6:34 AM CDT | River Flood Warning | LOT | Kankakee | 30 hr |
| Apr 30, 6:34 AM CDT | River Flood Warning | LOT | Grundy, Kankakee, Will | 14 hr |
| Apr 30, 6:41 AM CDT | River Flood Warning | LOT | Grundy | 20 hr |
| Apr 30, 6:44 AM CDT | River Flood Warning | LOT | DuPage | 23 hr |
| Apr 30, 10:50 AM CDT | River Flood Warning | ILX | Marshall, Putnam | 10 days |
| Apr 30, 10:52 AM CDT | River Flood Warning | ILX | Peoria, Tazewell, Woodford | 40 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- LaSalle County5
- Cass County4
- Mason County4
- Lake County4
- Brown County3
- Tazewell County3
- Woodford County3
- Cook County3
- Will County3
- Crawford County3
- Grundy County3
- Hancock County2
- Morgan County2
- Pike County2
- McLean County2
- Menard County2
- Kane County2
- DuPage County2
- Putnam County2
- Lawrence County2
- Kankakee County2
- Carroll County1
- Jo Daviess County1
- Clinton County1
- Pulaski County1
- Fulton County1
- Calhoun County1
- Greene County1
- Jersey County1
- Schuyler County1
- Scott County1
- Madison County1
- Alexander County1
- Clay County1
- Richland County1
- Gallatin County1
- Wayne County1
- White County1
- Piatt County1
- Fayette County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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. Warning verification from the Mesonet's Cow. Rebuilt daily.