Alert archive / Illinois / Flash Flood Watches / 2021
Flash Flood Watches in Illinois, June 2021
8 flash flood watches in June 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 flash flood watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in June 2021. Tap one for its archive.
- Flash Flood Watches
- 8
- Busiest day
- June 28, 20214 flash flood watches
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 |
|---|---|---|---|---|
| Jun 23, 2:00 PM CDT | Flash Flood Watch | LSX | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 3 more | 3 days |
| Jun 24, 2:08 PM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 54 hr |
| Jun 24, 2:19 PM CDT | Flash Flood Watch | LOT | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more | 54 hr |
| Jun 24, 2:28 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more | 54 hr |
| Jun 28, 3:01 AM CDT | Flash Flood Watch | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 40 hr |
| Jun 28, 3:13 AM CDT | Flash Flood Watch | ILX | Cass, Fulton, Knox, Logan, McLean, Marshall and 10 more | 40 hr |
| Jun 28, 3:19 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more | 38 hr |
| Jun 28, 3:54 AM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 39 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County2
- Brown County2
- Pike County2
- Bureau County2
- Hancock County2
- Henderson County2
- Henry County2
- McDonough County2
- Mercer County2
- Putnam County2
- Rock Island County2
- Warren County2
- Whiteside County2
- Cook County2
- DeKalb County2
- DuPage County2
- Ford County2
- Grundy County2
- Iroquois County2
- Kane County2
- Kankakee County2
- Kendall County2
- LaSalle County2
- Lee County2
- Livingston County2
- Will County2
- Cass County2
- Fulton County2
- Knox County2
- Logan County2
- McLean County2
- Marshall County2
- Mason County2
- Menard County2
- Morgan County2
- Peoria County2
- Sangamon County2
- Schuyler County2
- Scott County2
- Stark County2
26 more counties
- Tazewell County2
- Woodford County2
- Calhoun County1
- Greene County1
- Jersey County1
- Macoupin County1
- Madison County1
- Montgomery County1
- Champaign County1
- Christian County1
- Coles County1
- DeWitt County1
- Douglas County1
- Edgar County1
- Macon County1
- Moultrie County1
- Piatt County1
- Shelby County1
- Vermilion County1
- Boone County1
- Lake County1
- McHenry County1
- Ogle County1
- Winnebago County1
- Carroll County1
- Stephenson 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.