Alert archive / Illinois / River Flood Warnings / 2021
River Flood Warnings in Illinois, May 2021
17 river flood warnings in May 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 warnings reaches back to 2005.
River Flood Warnings by county
Each county as a circle sized by its count in May 2021. Tap one for its archive.
- River Flood Warnings
- 17
- Busiest day
- May 19, 20214 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 |
|---|---|---|---|---|
| May 9, 10:41 AM CDT | River Flood Warning | LOT | Iroquois | 54 hr |
| May 9, 11:11 AM CDT | River Flood Warning | IND | Clark, Crawford | 8 days |
| May 9, 1:31 PM CDT | River Flood Warning | IND | Crawford, Lawrence | 11 days |
| May 9, 7:37 PM CDT | River Flood Warning | IND | Crawford, Lawrence | 11 days |
| May 9, 8:25 PM CDT | River Flood Warning | ILX | Fulton, Knox | 19 hr |
| May 10, 8:00 AM CDT | River Flood Warning | ILX | Piatt | 35 hr |
| May 10, 7:28 PM CDT | River Flood Warning | LOT | Bureau, LaSalle, Putnam | 13 hr |
| May 12, 9:22 AM CDT | River Flood Warning | ILX | Cass, Fulton, Mason | 18 days |
| May 16, 8:16 PM CDT | River Flood Warning | ILX | Brown, Cass, Morgan, Schuyler | 16 days |
| May 17, 12:09 PM CDT | River Flood Warning | IND | Clark, Crawford | 6 days |
| May 17, 8:50 PM CDT | River Flood Warning | DVN | Hancock, McDonough | 4 days |
| May 18, 3:23 PM CDT | River Flood Warning | LSX | Brown | 6 days |
| May 18, 6:19 PM CDT | River Flood Warning | ILX | Fulton, Knox | 71 hr |
| May 18, 7:29 PM CDT | River Flood Warning | LSX | Fayette | 16 hr |
| May 18, 8:07 PM CDT | River Flood Warning | ILX | Fulton | 4 days |
| May 19, 10:19 AM CDT | River Flood Warning | LSX | Calhoun, Greene, Jersey | 47 hr |
| May 19, 10:19 AM CDT | River Flood Warning | LSX | Pike, Scott | 7 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Crawford County4
- Fulton County4
- Clark County2
- Lawrence County2
- Knox County2
- Cass County2
- Brown County2
- Iroquois County1
- Piatt County1
- Bureau County1
- LaSalle County1
- Putnam County1
- Mason County1
- Morgan County1
- Schuyler County1
- Hancock County1
- McDonough County1
- Fayette County1
- Calhoun County1
- Greene County1
- Jersey County1
- Pike County1
- Scott County1
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.