Alert archive / Illinois / River Flood Warnings / 2023
River Flood Warnings in Illinois, April 2023
37 river flood warnings in April 2023. 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 2023. Tap one for its archive.
- River Flood Warnings
- 37
- Busiest day
- April 17, 20239 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 |
|---|---|---|---|---|
| Mar 31, 11:04 PM CDT | River Flood Warning | LOT | Cook | 22 hr |
| Apr 1, 11:30 AM CDT | River Flood Warning | LOT | Bureau, LaSalle, Putnam | 3 days |
| Apr 1, 9:00 PM CDT | River Flood Warning | DVN | Henry, Rock Island, Whiteside | 23 hr |
| Apr 4, 5:46 PM CDT | River Flood Warning | LOT | Kane, Lake, McHenry | 14 hr |
| Apr 4, 7:04 PM CDT | River Flood Warning | LOT | Cook | 40 hr |
| Apr 4, 8:48 PM CDT | River Flood Warning | DVN | Henry, Rock Island, Whiteside | 6 days |
| Apr 5, 1:45 AM CDT | River Flood Warning | MKX | Winnebago | 21 days |
| Apr 5, 9:26 AM CDT | River Flood Warning | MKX | Lake | 6 days |
| Apr 5, 9:57 AM CDT | River Flood Warning | DVN | Henry, Rock Island | 4 days |
| Apr 5, 6:01 PM CDT | River Flood Warning | IND | Lawrence, Wabash | 67 hr |
| Apr 5, 8:02 PM CDT | River Flood Warning | LOT | Bureau, LaSalle, Putnam | 24 hr |
| Apr 14, 11:57 AM CDT | River Flood Warning | DVN | Jo Daviess | 32 days |
| Apr 14, 12:00 PM CDT | River Flood Warning | DVN | Jo Daviess | 28 days |
| Apr 14, 12:04 PM CDT | River Flood Warning | DVN | Henderson | 40 days |
| Apr 14, 12:07 PM CDT | River Flood Warning | DVN | Hancock, Henderson | 40 days |
| Apr 17, 12:38 PM CDT | River Flood Warning | DVN | Rock Island, Whiteside | 30 days |
| Apr 17, 12:41 PM CDT | River Flood Warning | DVN | Carroll, Jo Daviess | 23 days |
| Apr 17, 12:42 PM CDT | River Flood Warning | DVN | Carroll, Whiteside | 26 days |
| Apr 17, 12:45 PM CDT | River Flood Warning | DVN | Rock Island | 27 days |
| Apr 17, 12:47 PM CDT | River Flood Warning | DVN | Rock Island | 32 days |
| Apr 17, 12:48 PM CDT | River Flood Warning | DVN | Rock Island | 30 days |
| Apr 17, 12:50 PM CDT | River Flood Warning | DVN | Mercer, Rock Island | 34 days |
| Apr 17, 1:05 PM CDT | River Flood Warning | DVN | Mercer | 34 days |
| Apr 17, 1:07 PM CDT | River Flood Warning | DVN | Henderson, Mercer | 36 days |
| Apr 20, 11:58 AM CDT | River Flood Warning | LSX | Calhoun | 35 days |
| Apr 20, 11:58 AM CDT | River Flood Warning | LSX | Pike | 34 days |
| Apr 20, 11:58 AM CDT | River Flood Warning | LSX | Pike | 34 days |
| Apr 20, 11:58 AM CDT | River Flood Warning | LSX | Adams | 26 days |
| Apr 21, 11:34 AM CDT | River Flood Warning | LSX | Pike | 30 days |
| Apr 21, 11:34 AM CDT | River Flood Warning | LSX | Calhoun | 32 days |
| Apr 23, 11:05 AM CDT | River Flood Warning | DVN | Hancock | 23 days |
| Apr 23, 11:14 AM CDT | River Flood Warning | LSX | Adams | 21 days |
| Apr 23, 11:14 AM CDT | River Flood Warning | LSX | Adams | 22 days |
| Apr 23, 11:14 AM CDT | River Flood Warning | LSX | Adams | 21 days |
| Apr 24, 12:25 PM CDT | River Flood Warning | DVN | Hancock | 21 days |
| Apr 26, 1:08 PM CDT | River Flood Warning | LSX | Jersey | 21 days |
| Apr 27, 10:51 AM CDT | River Flood Warning | LSX | Calhoun, Greene, Jersey | 49 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rock Island County8
- Whiteside County4
- Adams County4
- Henry County3
- Jo Daviess County3
- Henderson County3
- Hancock County3
- Mercer County3
- Calhoun County3
- Pike County3
- Cook County2
- Bureau County2
- LaSalle County2
- Putnam County2
- Lake County2
- Carroll County2
- Jersey County2
- Kane County1
- McHenry County1
- Winnebago County1
- Lawrence County1
- Wabash County1
- Greene County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.