Alert archive / Illinois / Flash Flood Watches / 2018
Flash Flood Watches in Illinois, May 2018
3 flash flood watches in May 2018. 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 May 2018. Tap one for its archive.
- Flash Flood Watches
- 3
- Busiest day
- May 3, 20181 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 |
|---|---|---|---|---|
| May 2, 8:51 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 11 hr |
| May 12, 12:34 PM CDT | Flash Flood Watch | LOT | DeKalb, DuPage, Grundy, Kane, Kendall, LaSalle and 2 more | 15 hr |
| May 28, 1:58 PM CDT | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 45 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- DeKalb County2
- DuPage County2
- Grundy County2
- Kane County2
- Kendall County2
- LaSalle County2
- Lee County2
- Ogle County2
- Boone County1
- Ford County1
- Iroquois County1
- Kankakee County1
- Lake County1
- Livingston County1
- McHenry County1
- Winnebago County1
- Alexander County1
- Edwards County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry County1
- Pope County1
- Pulaski County1
- Saline County1
- Union County1
- Wabash County1
- Wayne County1
- White County1
- Williamson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.