Alert archive / Illinois / Severe Thunderstorm Watches / 2024
Severe Thunderstorm Watches in Illinois, May 2024
4 severe thunderstorm watches in May 2024. 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in May 2024. Tap one for its archive.
- Severe Thunderstorm Watches
- 4
- Busiest day
- May 24, 20242 severe thunderstorm 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 20, 12:39 PM CDT | Severe Thunderstorm Watch | SPC | Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more | 3 hr |
| May 24, 6:07 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more | 9 hr |
| May 24, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 31 more | 10 hr |
| May 26, 6:27 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Coles, Cumberland, Edgar, Shelby | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boone County2
- DeKalb County2
- Kane County2
- Lake County2
- Lee County2
- McHenry County2
- Ogle County2
- Winnebago County2
- Fulton County2
- Hancock County2
- Henderson County2
- Knox County2
- McDonough County2
- Warren County2
- Shelby County2
- Bureau County1
- Carroll County1
- Cook County1
- DuPage County1
- Ford County1
- Grundy County1
- Henry County1
- Iroquois County1
- Jo Daviess County1
- Kankakee County1
- Kendall County1
- LaSalle County1
- Livingston County1
- McLean County1
- Marshall County1
- Mercer County1
- Peoria County1
- Putnam County1
- Rock Island County1
- Stark County1
- Stephenson County1
- Tazewell County1
- Whiteside County1
- Will County1
- Woodford County1
34 more counties
- Adams County1
- Bond County1
- Brown County1
- Calhoun County1
- Cass County1
- Christian County1
- Clay County1
- Clinton County1
- Effingham County1
- Fayette County1
- Greene County1
- Jersey County1
- Logan County1
- Macon County1
- Macoupin County1
- Madison County1
- Marion County1
- Mason County1
- Menard County1
- Monroe County1
- Montgomery County1
- Morgan County1
- Moultrie County1
- Pike County1
- Randolph County1
- Saint Clair County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Washington County1
- Clark County1
- Coles County1
- Cumberland County1
- Edgar County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.