Alert archive / Illinois / Severe Thunderstorm Watches / 1997
Severe Thunderstorm Watches in Illinois, April 1997
6 severe thunderstorm watches in April 1997. 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 1997. Tap one for its archive.
- Severe Thunderstorm Watches
- 6
- Busiest day
- April 5, 19973 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, 2:30 PM CST | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Henry, Jo Daviess, Knox, LaSalle and 8 more | 5 hr |
| Apr 5, 2:30 PM CST | Severe Thunderstorm Watch | SPC | Bond, Cass, Champaign, Christian, Clark, Clay and 34 more | 5 hr |
| Apr 5, 4:15 PM CST | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 13 more | 4 hr |
| Apr 18, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Franklin, Greene and 18 more | 4 hr |
| Apr 20, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Franklin, Hamilton, Jackson, Johnson, Perry and 6 more | 6 hr |
| Apr 30, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Saline and 1 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Johnson County3
- Saline County3
- Williamson County3
- Bureau County2
- Carroll County2
- Jo Daviess County2
- LaSalle County2
- Lee County2
- Putnam County2
- Whiteside County2
- Bond County2
- Clinton County2
- Macoupin County2
- Madison County2
- Montgomery County2
- Saint Clair County2
- Alexander County2
- Franklin County2
- Jackson County2
- Massac County2
- Perry County2
- Pope County2
- Pulaski County2
- Randolph County2
- Union County2
- Henry County1
- Knox County1
- Livingston County1
- Marshall County1
- Mercer County1
- Rock Island County1
- Stark County1
- Cass County1
- Champaign County1
- Christian County1
- Clark County1
- Clay County1
- Coles County1
- Crawford County1
- Cumberland County1
48 more counties
- DeWitt County1
- Douglas County1
- Edgar County1
- Effingham County1
- Fayette County1
- Ford County1
- Fulton County1
- Iroquois County1
- Jasper County1
- Lawrence County1
- Logan County1
- McLean County1
- Macon County1
- Marion County1
- Mason County1
- Menard County1
- Morgan County1
- Moultrie County1
- Peoria County1
- Piatt County1
- Richland County1
- Sangamon County1
- Shelby County1
- Tazewell County1
- Vermilion County1
- Woodford County1
- Boone County1
- DeKalb County1
- DuPage County1
- Grundy County1
- Kane County1
- Kankakee County1
- Kendall County1
- McHenry County1
- Ogle County1
- Stephenson County1
- Will County1
- Winnebago County1
- Calhoun County1
- Greene County1
- Jefferson County1
- Jersey County1
- Monroe County1
- Washington County1
- Hamilton County1
- White County1
- Gallatin County1
- Hardin County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19961998
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.