Alert archive / Illinois / Severe Thunderstorm Watches / 2017
Severe Thunderstorm Watches in Illinois, April 2017
6 severe thunderstorm watches in April 2017. 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 April 2017. Tap one for its archive.
- Severe Thunderstorm Watches
- 6
- Busiest day
- April 29, 20172 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 |
|---|---|---|---|---|
| Apr 5, 3:08 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Crawford, Edwards, Gallatin, Hamilton and 7 more | 5 hr |
| Apr 10, 1:48 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cass, Champaign, Christian and 48 more | 8 hr |
| Apr 19, 8:57 PM CDT | Severe Thunderstorm Watch | SPC | Rock Island | 4 hr |
| Apr 26, 12:46 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Clark, Clay, Clinton, Crawford and 19 more | 6 hr |
| Apr 28, 10:01 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 7 more | 9 hr |
| Apr 29, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 38 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hamilton County4
- Clark County3
- Clay County3
- Crawford County3
- Gallatin County3
- Jasper County3
- Lawrence County3
- Richland County3
- Saline County3
- Wayne County3
- White County3
- Cumberland County3
- Edgar County3
- Effingham County3
- Alexander County3
- Franklin County3
- Jackson County3
- Pulaski County3
- Union County3
- Williamson County3
- Edwards County2
- Wabash County2
- Christian County2
- Coles County2
- Douglas County2
- Moultrie County2
- Shelby County2
- Bond County2
- Clinton County2
- Fayette County2
- Jefferson County2
- Marion County2
- Perry County2
- Randolph County2
- Washington County2
- Hardin County2
- Johnson County2
- Pope County2
- Boone County1
- Bureau County1
51 more counties
- Carroll County1
- Cass County1
- Champaign County1
- Cook County1
- DeKalb County1
- DeWitt County1
- DuPage County1
- Ford County1
- Fulton County1
- Grundy County1
- Henry County1
- Iroquois County1
- Jo Daviess County1
- Kane County1
- Kankakee County1
- Kendall County1
- Knox County1
- Lake County1
- LaSalle County1
- Lee County1
- Livingston County1
- Logan County1
- McDonough County1
- McHenry County1
- McLean County1
- Macon County1
- Marshall County1
- Mason County1
- Menard County1
- Ogle County1
- Peoria County1
- Piatt County1
- Putnam County1
- Sangamon County1
- Schuyler County1
- Stark County1
- Stephenson County1
- Tazewell County1
- Vermilion County1
- Warren County1
- Whiteside County1
- Will County1
- Winnebago County1
- Woodford County1
- Rock Island County1
- Macoupin County1
- Madison County1
- Massac County1
- Monroe County1
- Montgomery County1
- Saint Clair County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.