Alert archive / Illinois / Mesoscale Discussions
Mesoscale Discussions in Illinois, 2018
136 mesoscale discussions in 2018. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Mesoscale Discussions
- 136
- Busiest month
- June40 mesoscale discussions
- Busiest day
- June 10, 20187 mesoscale discussions
Over time
By month
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 |
|---|---|---|---|---|
| Jan 7, 1:49 PM CST | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Ford, Grundy and 16 more | 4 hr |
| Jan 7, 2:00 PM CST | Mesoscale Discussion | SPC | Brown, Bureau, Cass, Cook, DeKalb, DeWitt and 32 more | 4 hr |
| Jan 7, 6:16 PM CST | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Cook, Crawford, DeKalb and 12 more | 6 hr |
| Jan 11, 9:36 AM CST | Mesoscale Discussion | SPC | Henderson, Mercer, Rock Island | 4 hr |
| Jan 11, 8:43 PM CST | Mesoscale Discussion | SPC | Alexander, Bond, Champaign, Christian, Clark, Clay and 36 more | 6 hr |
| Jan 12, 2:00 AM CST | Mesoscale Discussion | SPC | Gallatin, Hardin, Massac, Pope | 5 hr |
| Feb 5, 11:36 AM CST | Mesoscale Discussion | SPC | Henderson, Mercer, Rock Island, Warren | 6 hr |
| Feb 5, 4:57 PM CST | Mesoscale Discussion | SPC | Bureau, DeWitt, Ford, Fulton, Grundy, Hancock and 25 more | 4 hr |
| Feb 6, 6:08 PM CST | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 4 more | 4 hr |
| Feb 6, 9:42 PM CST | Mesoscale Discussion | SPC | Alexander, Clay, Crawford, Edwards, Franklin, Gallatin and 20 more | 5 hr |
| Feb 8, 9:07 PM CST | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 10 more | 6 hr |
| Feb 9, 3:08 AM CST | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Kane and 10 more | 6 hr |
| Feb 15, 5:51 PM CST | Mesoscale Discussion | SPC | Clark, Crawford | 2 hr |
| Feb 20, 9:18 PM CST | Mesoscale Discussion | SPC | Brown, Calhoun, Cass, Christian, Cook, DeWitt and 32 more | 6 hr |
| Feb 24, 2:58 PM CST | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 62 min |
| Mar 16, 11:46 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 59 min |
| Mar 17, 3:59 AM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Kane, Kankakee, Kendall and 1 more | 4 hr |
| Mar 24, 3:26 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 1 more | 64 min |
| Apr 1, 1:38 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 8 more | 4 hr |
| Apr 2, 10:46 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Edwards, Effingham, Fayette and 21 more | 119 min |
| Apr 3, 12:57 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Edwards, Effingham, Fayette and 24 more | 2 hr |
| Apr 3, 3:34 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clay, Clinton, Coles, Crawford and 32 more | 86 min |
| Apr 13, 8:42 PM CDT | Mesoscale Discussion | SPC | Monroe, Randolph | 63 min |
| Apr 13, 10:11 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clinton, Effingham, Fayette and 7 more | 64 min |
| May 2, 1:33 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Fulton, Grundy, Hancock and 23 more | 117 min |
| May 2, 5:29 PM CDT | Mesoscale Discussion | SPC | Cook | 91 min |
| May 2, 7:21 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 24 more | 84 min |
| May 2, 10:01 PM CDT | Mesoscale Discussion | SPC | Bureau, DeKalb, DuPage, Grundy, Henderson, Henry and 18 more | 89 min |
| May 2, 10:20 PM CDT | Mesoscale Discussion | SPC | Adams, Calhoun, Pike | 115 min |
| May 3, 1:57 AM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DeWitt, DuPage, Ford and 22 more | 93 min |
| May 3, 2:32 AM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 3 more | 88 min |
| May 4, 3:30 PM CDT | Mesoscale Discussion | SPC | Gallatin | 2 hr |
| May 9, 1:49 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Carroll, Cass, Fulton and 16 more | 116 min |
| May 9, 3:50 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DeWitt, DuPage, Ford and 19 more | 85 min |
| May 10, 6:36 PM CDT | Mesoscale Discussion | SPC | Clay, Edwards, Jefferson, Marion, Richland, Wabash and 2 more | 84 min |
| May 12, 1:04 AM CDT | Mesoscale Discussion | SPC | Rock Island | 116 min |
| May 13, 3:43 PM CDT | Mesoscale Discussion | SPC | Fulton, Henderson, Knox, Livingston, McDonough, McLean and 9 more | 2 hr |
| May 14, 2:40 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more | 2 hr |
| May 14, 2:37 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Cass, Champaign, DeWitt and 32 more | 53 min |
| May 14, 6:36 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Champaign, Christian, Clinton and 36 more | 84 min |
| May 19, 6:14 PM CDT | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pulaski, Union | 61 min |
| May 20, 11:43 AM CDT | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 3 hr |
| May 20, 3:32 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 118 min |
| May 26, 12:59 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, McDonough and 5 more | 3 hr |
| May 27, 3:47 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 62 more | 118 min |
| May 31, 10:16 AM CDT | Mesoscale Discussion | SPC | Clay, Crawford, Edwards, Effingham, Gallatin, Hamilton and 9 more | 119 min |
| May 31, 4:42 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 2 hr |
| May 31, 7:37 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 113 min |
| Jun 2, 9:12 AM CDT | Mesoscale Discussion | SPC | Clinton, Franklin, Jackson, Jefferson, Monroe, Perry and 5 more | 2 hr |
| Jun 2, 3:42 PM CDT | Mesoscale Discussion | SPC | Alexander, Pulaski | 2 hr |
| Jun 2, 6:55 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, DeWitt and 15 more | 2 hr |
| Jun 9, 11:09 AM CDT | Mesoscale Discussion | SPC | Bond, Christian, Clark, Clay, Clinton, Coles and 19 more | 2 hr |
| Jun 9, 6:30 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henry, Jo Daviess, Knox and 12 more | 2 hr |
| Jun 9, 10:17 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Henry, Jo Daviess, LaSalle and 8 more | 118 min |
| Jun 9, 11:44 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Henry, Jo Daviess, LaSalle and 8 more | 2 hr |
| Jun 10, 10:04 AM CDT | Mesoscale Discussion | SPC | Bond, Cass, Champaign, Christian, Clark, Clay and 43 more | 116 min |
| Jun 10, 12:17 PM CDT | Mesoscale Discussion | SPC | Bond, Brown, Cass, Christian, Clark, Clay and 34 more | 118 min |
| Jun 10, 2:42 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Clay, Coles, Crawford and 20 more | 93 min |
| Jun 10, 4:30 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 3 more | 90 min |
| Jun 10, 5:20 PM CDT | Mesoscale Discussion | SPC | Edwards, Lawrence, Wabash, Wayne, White | 85 min |
| Jun 10, 7:01 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Christian, Clay, Clinton and 38 more | 59 min |
| Jun 11, 4:53 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 35 more | 2 hr |
| Jun 12, 1:26 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 109 min |
| Jun 13, 3:14 PM CDT | Mesoscale Discussion | SPC | Clark, Crawford, Edwards, Jasper, Lawrence, Richland and 1 more | 2 hr |
| Jun 14, 1:17 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Fulton, Hancock, Henderson, McDonough and 3 more | 118 min |
| Jun 14, 5:18 PM CDT | Mesoscale Discussion | SPC | Madison, Monroe, Saint Clair | 57 min |
| Jun 14, 8:38 PM CDT | Mesoscale Discussion | SPC | Alexander, Pulaski, Union | 97 min |
| Jun 19, 12:37 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, DeWitt, Ford and 28 more | 113 min |
| Jun 20, 5:13 PM CDT | Mesoscale Discussion | SPC | Mercer, Rock Island | 2 hr |
| Jun 21, 12:31 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more | 2 hr |
| Jun 21, 1:53 PM CDT | Mesoscale Discussion | SPC | Henry, Knox, Marshall, Peoria, Rock Island, Stark and 2 more | 3 hr |
| Jun 21, 3:56 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 2 hr |
| Jun 21, 5:44 PM CDT | Mesoscale Discussion | SPC | Massac | 2 hr |
| Jun 23, 4:50 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more | 115 min |
| Jun 25, 3:23 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clinton, Franklin, Hamilton, Jackson and 12 more | 97 min |
| Jun 25, 8:08 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more | 2 hr |
| Jun 26, 2:19 AM CDT | Mesoscale Discussion | SPC | Monroe | 116 min |
| Jun 26, 7:39 AM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 39 more | 2 hr |
| Jun 26, 1:31 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Jo Daviess, Kane and 5 more | 89 min |
| Jun 26, 1:53 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Jackson, Johnson, Perry, Pulaski and 3 more | 67 min |
| Jun 26, 7:41 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hardin, Johnson, Massac and 5 more | 2 hr |
| Jun 27, 1:42 PM CDT | Mesoscale Discussion | SPC | Massac, Pulaski | 93 min |
| Jun 28, 2:00 AM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Clinton, Franklin, Gallatin and 20 more | 3 hr |
| Jun 28, 8:43 AM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Clinton, Edwards, Franklin and 24 more | 62 min |
| Jun 28, 10:57 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, Pike, Scott | 2 hr |
| Jun 28, 3:34 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 47 more | 116 min |
| Jun 28, 7:30 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more | 90 min |
| Jul 1, 11:37 AM CDT | Mesoscale Discussion | SPC | Boone, Jo Daviess, McHenry, Stephenson, Winnebago | 83 min |
| Jul 1, 12:23 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Boone, Brown, Bureau, Carroll and 56 more | 97 min |
| Jul 1, 3:37 PM CDT | Mesoscale Discussion | SPC | Bond, Boone, Cass, Champaign, Christian, Clark and 46 more | 83 min |
| Jul 1, 6:51 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 22 more | 114 min |
| Jul 13, 6:23 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson, Winnebago | 2 hr |
| Jul 14, 4:40 PM CDT | Mesoscale Discussion | SPC | Bond, Cass, Christian, Clinton, DeWitt, Fayette and 23 more | 95 min |
| Jul 19, 5:18 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, McDonough, Mercer, Rock Island, Warren | 57 min |
| Jul 19, 6:26 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 31 more | 64 min |
| Jul 19, 9:36 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 23 more | 54 min |
| Jul 19, 11:43 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Cumberland, Edwards, Effingham and 13 more | 92 min |
| Jul 20, 12:58 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 62 min |
| Jul 20, 10:20 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more | 115 min |
| Aug 5, 5:44 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Ogle, Rock Island, Stephenson, Whiteside | 2 hr |
| Aug 6, 3:16 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 19 more | 2 hr |
| Aug 6, 5:21 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Ford, Iroquois, Kankakee, Livingston and 5 more | 114 min |
| Aug 7, 1:04 AM CDT | Mesoscale Discussion | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 24 more | 56 min |
| Aug 7, 12:22 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 113 min |
| Aug 9, 2:55 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more | 65 min |
| Aug 10, 4:48 PM CDT | Mesoscale Discussion | SPC | Clark, Coles, Crawford, Cumberland, Douglas, Edgar and 5 more | 117 min |
| Aug 15, 2:50 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 115 min |
| Aug 16, 10:40 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clay, Clinton, Coles and 22 more | 2 hr |
| Aug 20, 11:46 AM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clay, Clinton, Franklin, Hamilton and 17 more | 119 min |
| Aug 20, 4:00 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 14 more | 2 hr |
| Aug 20, 4:46 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Grundy and 11 more | 119 min |
| Aug 25, 5:15 PM CDT | Mesoscale Discussion | SPC | Bureau, Fulton, Grundy, Iroquois, Kankakee, Kendall and 11 more | 2 hr |
| Aug 28, 12:14 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 2 hr |
| Aug 28, 3:42 PM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Grundy, Kane and 11 more | 93 min |
| Aug 28, 7:05 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 23 more | 55 min |
| Aug 28, 9:54 PM CDT | Mesoscale Discussion | SPC | Brown, Cass, Cook, DeWitt, DuPage, Ford and 24 more | 66 min |
| Sep 1, 6:34 PM CDT | Mesoscale Discussion | SPC | Carroll, Henderson, Henry, Jo Daviess, Mercer, Rock Island and 2 more | 56 min |
| Sep 1, 10:27 PM CDT | Mesoscale Discussion | SPC | Carroll, Henry, Mercer, Rock Island, Whiteside | 63 min |
| Sep 2, 3:47 PM CDT | Mesoscale Discussion | SPC | Boone, Jo Daviess, McHenry, Stephenson, Winnebago | 118 min |
| Sep 3, 1:20 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more | 2 hr |
| Sep 20, 3:16 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Kane and 8 more | 89 min |
| Sep 25, 1:07 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Hancock, Henderson, Henry and 12 more | 113 min |
| Sep 25, 3:39 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more | 96 min |
| Sep 25, 5:21 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 11 more | 114 min |
| Oct 3, 5:13 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 2 hr |
| Oct 6, 12:39 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 24 more | 2 hr |
| Oct 7, 1:33 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Greene, Jersey, Macoupin and 4 more | 2 hr |
| Oct 9, 2:45 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Henry, Jo Daviess, Kane and 7 more | 2 hr |
| Nov 14, 6:03 PM CST | Mesoscale Discussion | SPC | Crawford, Edwards, Gallatin, Hamilton, Hardin, Lawrence and 5 more | 6 hr |
| Nov 15, 12:11 AM CST | Mesoscale Discussion | SPC | Vermilion | 6 hr |
| Nov 25, 11:54 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 10 more | 6 hr |
| Nov 25, 3:57 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 12 more | 4 hr |
| Nov 25, 4:36 PM CST | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Montgomery and 2 more | 84 min |
| Nov 25, 6:54 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 14 more | 6 hr |
| Dec 1, 1:48 PM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 26 more | 117 min |
| Dec 1, 5:17 PM CST | Mesoscale Discussion | SPC | Cass, Christian, DeWitt, Ford, Fulton, Knox and 17 more | 88 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pulaski County34
- Alexander County33
- Saline County32
- Union County32
- Williamson County31
- Massac County31
- Jackson County30
- Madison County30
- Woodford County29
- Peoria County29
- Bond County29
- Johnson County29
- Clinton County28
- Fayette County28
- Franklin County28
- Marion County28
- Montgomery County28
- Gallatin County28
- Kane County27
- Lee County27
- Marshall County27
- Tazewell County27
- Jefferson County27
- Shelby County27
- Pope County27
- DeKalb County26
- DuPage County26
- Kendall County26
- Putnam County26
- Rock Island County26
- Stark County26
- Whiteside County26
- Fulton County26
- Mason County26
- Macoupin County26
- Cook County25
- Will County25
- DeWitt County25
- Christian County25
- Effingham County25
62 more counties
- Monroe County25
- Randolph County25
- Saint Clair County25
- Washington County25
- Hardin County25
- Ogle County25
- Henry County24
- Livingston County24
- Cass County24
- Knox County24
- Hamilton County24
- Perry County24
- White County24
- Carroll County24
- Winnebago County24
- Greene County24
- Jersey County24
- Grundy County23
- Kankakee County23
- LaSalle County23
- Logan County23
- Clay County23
- Edwards County23
- Richland County23
- Wayne County23
- Bureau County22
- Ford County22
- Mercer County22
- McDonough County22
- McLean County22
- Menard County22
- Warren County22
- Jasper County22
- Boone County22
- Morgan County22
- Scott County22
- Brown County21
- Moultrie County21
- Piatt County21
- Stephenson County21
- Macon County21
- Schuyler County20
- Coles County20
- Crawford County20
- Jo Daviess County20
- Calhoun County20
- Henderson County19
- Wabash County19
- Pike County19
- Sangamon County19
- Douglas County18
- Cumberland County18
- McHenry County18
- Iroquois County17
- Champaign County17
- Lawrence County17
- Lake County17
- Adams County17
- Clark County16
- Hancock County15
- Edgar County14
- Vermilion County14
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.