Alert archive / Illinois / Tornado Watches / 1999
Tornado Watches in Illinois, April 1999
8 tornado watches in April 1999. 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 tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in April 1999. Tap one for its archive.
- Tornado Watches
- 8
- Busiest day
- April 8, 19992 tornado 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 3, 1:30 PM CST | Tornado Watch | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more | 6 hr |
| Apr 5, 4:00 PM CDT | Tornado Watch | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 28 more | 6 hr |
| Apr 5, 7:00 PM CDT | Tornado Watch | SPC | Bureau, Fulton, Hancock, Henderson, Henry, Knox and 9 more | 4 hr |
| Apr 8, 5:15 PM CDT | Tornado Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 8 more | 4 hr |
| Apr 8, 5:15 PM CDT | Tornado Watch | SPC | Calhoun, Greene, Jersey, Macoupin, Morgan, Pike and 1 more | 4 hr |
| Apr 8, 8:00 PM CDT | Tornado Watch | SPC | Bond, Bureau, Cass, Champaign, Christian, Clark and 51 more | 5 hr |
| Apr 10, 7:30 PM CDT | Tornado Watch | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 36 more | 6 hr |
| Apr 27, 2:30 PM CDT | Tornado Watch | SPC | Alexander, Clark, Clay, Clinton, Crawford, Cumberland and 26 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County4
- Johnson County4
- Massac County4
- Pope County4
- Pulaski County4
- Saline County4
- Williamson County4
- Clinton County4
- Fayette County4
- Jefferson County4
- Jersey County4
- Macoupin County4
- Marion County4
- Washington County4
- Gallatin County3
- Hardin County3
- Bond County3
- Cass County3
- Christian County3
- Franklin County3
- Jackson County3
- Madison County3
- Monroe County3
- Montgomery County3
- Morgan County3
- Perry County3
- Saint Clair County3
- Union County3
- Fulton County3
- Knox County3
- Mason County3
- Clark County3
- Clay County3
- Cumberland County3
- Edwards County3
- Effingham County3
- Jasper County3
- Richland County3
- Shelby County3
- Wabash County3
48 more counties
- Wayne County3
- Adams County2
- Brown County2
- Calhoun County2
- Greene County2
- Pike County2
- Randolph County2
- Sangamon County2
- Scott County2
- Bureau County2
- Hancock County2
- Henderson County2
- Henry County2
- McDonough County2
- Mercer County2
- Peoria County2
- Rock Island County2
- Schuyler County2
- Stark County2
- Tazewell County2
- Warren County2
- Menard County2
- Coles County2
- Crawford County2
- Hamilton County2
- Lawrence County2
- White County2
- Champaign County1
- DeWitt County1
- Douglas County1
- Edgar County1
- Ford County1
- Grundy County1
- Iroquois County1
- Kankakee County1
- Kendall County1
- LaSalle County1
- Livingston County1
- Logan County1
- McLean County1
- Macon County1
- Marshall County1
- Moultrie County1
- Piatt County1
- Putnam County1
- Vermilion County1
- Will County1
- Woodford County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.