Alert archive / Illinois / Severe Thunderstorm Warnings / 2009
Severe Thunderstorm Warnings in Illinois, August 2009
81 severe thunderstorm warnings in August 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 August 2009. Tap one for its archive.
- Severe Thunderstorm Warnings
- 81
- Busiest day
- August 4, 200933 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 |
|---|---|---|---|---|
| Aug 3, 11:44 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 46 min |
| Aug 3, 12:32 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 43 min |
| Aug 3, 1:33 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 42 min |
| Aug 3, 2:25 PM CDT | Severe Thunderstorm Warning | ILX | Scott | 50 min |
| Aug 3, 3:18 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 42 min |
| Aug 3, 3:45 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 45 min |
| Aug 4, 12:05 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 32 min |
| Aug 4, 3:57 AM CDT | Severe Thunderstorm Warning | DVN | Hancock, McDonough | 63 min |
| Aug 4, 6:24 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 51 min |
| Aug 4, 6:48 AM CDT | Severe Thunderstorm Warning | DVN | Hancock, Henderson | 57 min |
| Aug 4, 6:50 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 40 min |
| Aug 4, 7:07 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Schuyler | 38 min |
| Aug 4, 7:26 AM CDT | Severe Thunderstorm Warning | DVN | Henderson, McDonough, Warren | 64 min |
| Aug 4, 7:42 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Mason, Menard, Schuyler | 48 min |
| Aug 4, 7:53 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard, Morgan, Sangamon | 56 min |
| Aug 4, 8:11 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Logan, McLean, Mason, Menard, Sangamon and 1 more | 55 min |
| Aug 4, 8:19 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Marshall, Peoria, Stark, Tazewell | 41 min |
| Aug 4, 8:29 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Logan, Macon, Menard, Sangamon | 52 min |
| Aug 4, 8:37 AM CDT | Severe Thunderstorm Warning | ILX | McLean, Marshall, Peoria, Tazewell, Woodford | 38 min |
| Aug 4, 8:43 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Macon, Piatt | 47 min |
| Aug 4, 8:53 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Moultrie, Piatt, Shelby | 67 min |
| Aug 4, 8:56 AM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 49 min |
| Aug 4, 9:13 AM CDT | Severe Thunderstorm Warning | ILX | McLean, Marshall, Woodford | 23 min |
| Aug 4, 9:14 AM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, LaSalle, Livingston | 76 min |
| Aug 4, 9:24 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas | 51 min |
| Aug 4, 9:31 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, McLean, Piatt | 15 min |
| Aug 4, 9:34 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Effingham, Jasper | 26 min |
| Aug 4, 9:52 AM CDT | Severe Thunderstorm Warning | ILX | Edgar, Vermilion | 53 min |
| Aug 4, 9:57 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Crawford, Cumberland, Effingham, Jasper and 1 more | 63 min |
| Aug 4, 10:11 AM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 64 min |
| Aug 4, 4:43 PM CDT | Severe Thunderstorm Warning | PAH | Saline, Williamson | 47 min |
| Aug 4, 4:46 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Johnson, Union, Williamson | 44 min |
| Aug 4, 4:59 PM CDT | Severe Thunderstorm Warning | PAH | Hardin, Johnson, Pope, Saline, Williamson | 46 min |
| Aug 4, 5:11 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Hardin | 36 min |
| Aug 4, 5:18 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pope, Pulaski, Union | 42 min |
| Aug 4, 5:29 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 46 min |
| Aug 4, 5:48 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 57 min |
| Aug 4, 5:59 PM CDT | Severe Thunderstorm Warning | PAH | Pope | 46 min |
| Aug 4, 6:12 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 48 min |
| Aug 4, 7:14 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Union | 46 min |
| Aug 4, 7:41 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 26 min |
| Aug 9, 12:34 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 86 min |
| Aug 9, 1:29 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 61 min |
| Aug 9, 8:31 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Henry, Mercer, Warren | 44 min |
| Aug 9, 8:53 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Mercer, Warren | 52 min |
| Aug 10, 7:17 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 16 min |
| Aug 16, 2:20 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane, Kendall, Will | 40 min |
| Aug 16, 3:41 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 29 min |
| Aug 16, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 51 min |
| Aug 16, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 48 min |
| Aug 17, 3:23 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Logan, Mason, Menard, Morgan, Sangamon and 1 more | 52 min |
| Aug 17, 5:52 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Kankakee, Livingston | 53 min |
| Aug 19, 1:08 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 37 min |
| Aug 19, 1:21 PM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 54 min |
| Aug 19, 1:26 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 19 min |
| Aug 19, 1:30 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 15 min |
| Aug 19, 1:36 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 24 min |
| Aug 19, 1:49 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Mason, Morgan, Sangamon, Schuyler and 1 more | 56 min |
| Aug 19, 1:50 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 25 min |
| Aug 19, 2:43 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Logan, Mason, Menard, Morgan and 3 more | 62 min |
| Aug 19, 2:54 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Marshall, Peoria, Stark, Tazewell and 1 more | 66 min |
| Aug 19, 3:08 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 22 min |
| Aug 19, 3:24 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Piatt, Tazewell, Woodford | 66 min |
| Aug 19, 3:31 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 74 min |
| Aug 19, 3:48 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Marshall, Peoria, Stark, Tazewell, Woodford | 57 min |
| Aug 19, 3:52 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Moultrie, Shelby | 38 min |
| Aug 19, 4:01 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, LaSalle, Livingston | 55 min |
| Aug 19, 4:10 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon, Moultrie, Piatt | 65 min |
| Aug 19, 4:21 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 39 min |
| Aug 19, 4:30 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Coles, DeWitt, Douglas, McLean, Macon and 3 more | 45 min |
| Aug 19, 4:37 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 2 more | 53 min |
| Aug 19, 4:56 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Edgar, Vermilion | 64 min |
| Aug 19, 5:08 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 57 min |
| Aug 19, 5:14 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Effingham, Jasper, Moultrie, Shelby | 46 min |
| Aug 19, 5:14 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kankakee, Will | 61 min |
| Aug 19, 5:48 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Cumberland, Douglas, Edgar | 57 min |
| Aug 19, 5:52 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 23 min |
| Aug 19, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 48 min |
| Aug 19, 6:00 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Clay, Coles, Crawford, Cumberland, Effingham and 2 more | 75 min |
| Aug 19, 6:51 PM CDT | Severe Thunderstorm Warning | ILX | Effingham, Shelby | 20 min |
| Aug 21, 4:45 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Woodford | 24 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McLean County8
- Tazewell County8
- Shelby County7
- Adams County6
- Morgan County6
- Cass County6
- Fulton County6
- Menard County6
- Sangamon County6
- Logan County6
- Macon County6
- Woodford County6
- Piatt County6
- Livingston County6
- Coles County6
- Pike County5
- Mason County5
- Marshall County5
- Peoria County5
- DeWitt County5
- Moultrie County5
- Ford County5
- Iroquois County5
- Cumberland County5
- Effingham County5
- Brown County4
- Champaign County4
- Henderson County4
- Schuyler County4
- Montgomery County4
- Douglas County4
- Jasper County4
- Pope County4
- Alexander County4
- Scott County3
- Vermilion County3
- Warren County3
- Knox County3
- Stark County3
- Christian County3
34 more counties
- Fayette County3
- LaSalle County3
- Edgar County3
- Clark County3
- Williamson County3
- Johnson County3
- Union County3
- Pulaski County3
- Cook County3
- Will County3
- Kankakee County3
- Macoupin County2
- Hancock County2
- McDonough County2
- Crawford County2
- Saline County2
- Hardin County2
- Gallatin County2
- Massac County2
- Jo Daviess County2
- Mercer County2
- Kendall County2
- Grundy County2
- Greene County1
- Jackson County1
- Stephenson County1
- Henry County1
- DuPage County1
- Kane County1
- Monroe County1
- Saint Clair County1
- Randolph County1
- Bond County1
- Clay 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. Rebuilt daily.