Alert archive / Illinois / Flash Flood Watches / 2019
Flash Flood Watches in Illinois, September 2019
19 flash flood watches in September 2019. 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 September 2019. Tap one for its archive.
- Flash Flood Watches
- 19
- Busiest day
- September 27, 20194 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 |
|---|---|---|---|---|
| Sep 1, 10:11 AM CDT | Flash Flood Watch | ILX | Sangamon | 22 hr |
| Sep 12, 1:46 AM CDT | Flash Flood Watch | DVN | Jo Daviess, Stephenson | 23 hr |
| Sep 14, 3:01 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more | 30 hr |
| Sep 14, 2:47 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Kane, Lake, Lee and 3 more | 19 hr |
| Sep 19, 8:17 AM CDT | Flash Flood Watch | DVN | Carroll, Jo Daviess, Stephenson | 7 hr |
| Sep 20, 3:15 AM CDT | Flash Flood Watch | ILX | Cass, Fulton, Knox, Marshall, Mason, Menard and 7 more | 61 hr |
| Sep 20, 3:28 AM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 60 hr |
| Sep 20, 4:07 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 63 hr |
| Sep 21, 3:35 AM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 41 hr |
| Sep 27, 11:27 AM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 16 hr |
| Sep 27, 1:38 PM CDT | Flash Flood Watch | ILX | Cass, Fulton, Knox, McLean, Marshall, Mason and 8 more | 17 hr |
| Sep 27, 1:43 PM CDT | Flash Flood Watch | LOT | DeKalb, DuPage, Ford, Grundy, Iroquois, Kane and 6 more | 16 hr |
| Sep 27, 3:40 PM CDT | Flash Flood Watch | LSX | Adams, Brown, Pike | 14 hr |
| Sep 28, 2:41 PM CDT | Flash Flood Watch | LOT | DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall and 3 more | 16 hr |
| Sep 28, 2:43 PM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 13 hr |
| Sep 28, 3:17 PM CDT | Flash Flood Watch | ILX | Fulton, Knox, Marshall, Peoria, Stark, Tazewell and 1 more | 12 hr |
| Sep 29, 5:00 AM CDT | Flash Flood Watch | DVN | Hancock, Henderson, McDonough, Warren | 12 hr |
| Sep 29, 10:58 AM CDT | Flash Flood Watch | ILX | Fulton, Knox, McLean, Marshall, Mason, Peoria and 3 more | 9 hr |
| Sep 30, 2:39 PM CDT | Flash Flood Watch | DVN | Jo Daviess, Stephenson | 39 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County5
- Stephenson County5
- Bureau County4
- Henry County4
- Putnam County4
- Rock Island County4
- DeKalb County4
- DuPage County4
- Kane County4
- Lee County4
- Fulton County4
- Knox County4
- Marshall County4
- Peoria County4
- Stark County4
- Tazewell County4
- Woodford County4
- Hancock County4
- Henderson County4
- McDonough County4
- Warren County4
- Carroll County3
- Whiteside County3
- Ogle County3
- Mason County3
- Mercer County3
- Grundy County3
- Kendall County3
- LaSalle County3
- Boone County2
- Lake County2
- McHenry County2
- Winnebago County2
- Cass County2
- Menard County2
- Morgan County2
- Schuyler County2
- Scott County2
- Adams County2
- Brown County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.