Alert archive / Illinois / Severe Thunderstorm Warnings / 2009
Severe Thunderstorm Warnings in Illinois, July 2009
55 severe thunderstorm warnings in July 2009. 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 warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in July 2009. Tap one for its archive.
- Severe Thunderstorm Warnings
- 55
- Busiest day
- July 25, 200927 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Jul 11, 7:42 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 48 min |
| Jul 12, 1:07 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 38 min |
| Jul 16, 5:54 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 36 min |
| Jul 16, 6:43 PM CDT | Severe Thunderstorm Warning | LOT | Kendall, Will | 33 min |
| Jul 16, 7:23 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 38 min |
| Jul 16, 8:20 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison, Montgomery | 40 min |
| Jul 16, 9:52 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 31 min |
| Jul 16, 10:21 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 39 min |
| Jul 16, 10:32 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 43 min |
| Jul 16, 10:33 PM CDT | Severe Thunderstorm Warning | ILX | Clay | 42 min |
| Jul 16, 11:16 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 29 min |
| Jul 23, 1:59 PM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb, Kane | 30 min |
| Jul 23, 3:49 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee, Will | 25 min |
| Jul 23, 4:43 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 40 min |
| Jul 23, 5:56 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 64 min |
| Jul 23, 7:18 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 38 min |
| Jul 24, 5:16 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 59 min |
| Jul 24, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson | 53 min |
| Jul 24, 6:12 PM CDT | Severe Thunderstorm Warning | LOT | Ogle | 63 min |
| Jul 24, 6:20 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 70 min |
| Jul 24, 6:53 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson | 82 min |
| Jul 24, 7:13 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 16 min |
| Jul 24, 7:41 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Rock Island, Whiteside | 64 min |
| Jul 24, 7:57 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 63 min |
| Jul 24, 8:46 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island, Whiteside | 89 min |
| Jul 24, 9:11 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer | 94 min |
| Jul 24, 9:37 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Marshall, Peoria, Stark, Woodford | 53 min |
| Jul 24, 9:44 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 44 min |
| Jul 24, 9:54 PM CDT | Severe Thunderstorm Warning | DVN | Mercer | 43 min |
| Jul 24, 9:58 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 47 min |
| Jul 24, 10:19 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more | 56 min |
| Jul 24, 10:42 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Mason, Peoria, Tazewell, Woodford | 48 min |
| Jul 24, 10:43 PM CDT | Severe Thunderstorm Warning | LOT | Ford, LaSalle, Livingston | 62 min |
| Jul 24, 11:00 PM CDT | Severe Thunderstorm Warning | DVN | McDonough, Warren | 37 min |
| Jul 24, 11:01 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason, Peoria, Tazewell | 44 min |
| Jul 24, 11:16 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Mason, Menard, Piatt and 2 more | 59 min |
| Jul 24, 11:16 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Grundy, Iroquois, Kankakee, Livingston, Will | 59 min |
| Jul 24, 11:46 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, DeWitt, McLean, Piatt, Vermilion | 59 min |
| Jul 24, 11:46 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Mason, Menard, Morgan, Schuyler | 44 min |
| Jul 24, 11:57 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 48 min |
| Jul 25, 12:06 AM CDT | Severe Thunderstorm Warning | ILX | Christian, DeWitt, Logan, Macon, Menard, Moultrie and 1 more | 39 min |
| Jul 25, 12:37 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Moultrie, Piatt, Sangamon, Shelby | 53 min |
| Jul 25, 12:56 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Cumberland, Douglas, Edgar, Moultrie and 2 more | 64 min |
| Jul 25, 12:57 AM CDT | Severe Thunderstorm Warning | LSX | Fayette, Macoupin, Montgomery | 63 min |
| Jul 25, 1:32 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 3 more | 73 min |
| Jul 25, 1:54 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion, Montgomery | 66 min |
| Jul 25, 2:55 AM CDT | Severe Thunderstorm Warning | PAH | Wabash | 45 min |
| Jul 25, 7:04 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Shelby | 41 min |
| Jul 27, 8:27 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 93 min |
| Jul 27, 9:15 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 60 min |
| Jul 27, 9:17 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Whiteside | 58 min |
| Jul 28, 2:10 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 50 min |
| Jul 28, 2:54 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 37 min |
| Jul 28, 4:07 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 38 min |
| Jul 30, 5:12 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 51 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County5
- Will County4
- Stephenson County4
- Carroll County4
- Ogle County4
- Fulton County4
- Peoria County4
- McLean County4
- Tazewell County4
- Mason County4
- Sangamon County4
- Shelby County4
- Cook County3
- Montgomery County3
- Kankakee County3
- Lee County3
- Whiteside County3
- Woodford County3
- Livingston County3
- DeWitt County3
- Menard County3
- Piatt County3
- Vermilion County3
- Moultrie County3
- Cumberland County3
- Monroe County2
- Randolph County2
- Macoupin County2
- Iroquois County2
- Marion County2
- Wayne County2
- Clay County2
- Calhoun County2
- Rock Island County2
- Mercer County2
- Knox County2
- Marshall County2
- Stark County2
- LaSalle County2
- Ford County2
36 more counties
- Logan County2
- Cass County2
- Morgan County2
- Christian County2
- Macon County2
- Clark County2
- Coles County2
- Fayette County2
- Saint Clair County1
- DuPage County1
- Kendall County1
- Jersey County1
- Madison County1
- Boone County1
- DeKalb County1
- Kane County1
- Henry County1
- Bureau County1
- Putnam County1
- McDonough County1
- Warren County1
- Grundy County1
- Champaign County1
- Schuyler County1
- Douglas County1
- Edgar County1
- Crawford County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Richland County1
- Bond County1
- Clinton County1
- Wabash County1
- Lake County1
- McHenry County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.