Alert archive / Illinois / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Illinois, 1987
182 severe thunderstorm warnings in 1987. 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 1987. Tap one for its archive.
- Severe Thunderstorm Warnings
- 182
- Busiest month
- July65 severe thunderstorm warnings
- Busiest day
- July 6, 198723 severe thunderstorm warnings
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, 4:03 PM CST | Severe Thunderstorm Warning | LSX | Madison | 42 min |
| Jan 7, 4:58 PM CST | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 32 min |
| Apr 11, 4:05 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Piatt | 55 min |
| Apr 13, 4:45 AM CDT | Severe Thunderstorm Warning | PAH | Alexander | 45 min |
| Apr 13, 6:50 AM CDT | Severe Thunderstorm Warning | PAH | Hardin | 40 min |
| Apr 13, 8:31 AM CDT | Severe Thunderstorm Warning | LSX | Monroe | 44 min |
| May 11, 4:58 PM CDT | Severe Thunderstorm Warning | LOT | Kane, McHenry | 62 min |
| May 11, 4:58 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 62 min |
| May 11, 5:24 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane | 66 min |
| May 11, 5:32 PM CDT | Severe Thunderstorm Warning | ILX | Lee | 43 min |
| May 11, 5:42 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb | 63 min |
| May 11, 6:20 PM CDT | Severe Thunderstorm Warning | LOT | Kendall, LaSalle | 55 min |
| May 11, 6:26 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 49 min |
| May 14, 2:54 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 66 min |
| May 14, 4:55 PM CDT | Severe Thunderstorm Warning | ILX | Christian | 65 min |
| May 20, 9:44 AM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 31 min |
| May 20, 5:10 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer, Rock Island | 50 min |
| May 20, 5:30 PM CDT | Severe Thunderstorm Warning | ILX | Stark | 60 min |
| May 20, 6:20 PM CDT | Severe Thunderstorm Warning | ILX | Peoria | 35 min |
| May 20, 8:01 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 44 min |
| May 20, 9:02 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, LaSalle | 28 min |
| May 21, 6:39 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 21 min |
| May 21, 7:01 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 59 min |
| May 21, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 48 min |
| May 21, 7:25 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike, Scott | 50 min |
| May 21, 7:25 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 50 min |
| May 21, 7:28 PM CDT | Severe Thunderstorm Warning | ILX | McDonough, Schuyler | 62 min |
| May 21, 8:10 PM CDT | Severe Thunderstorm Warning | LSX | Brown, Pike | 50 min |
| May 21, 8:10 PM CDT | Severe Thunderstorm Warning | LSX | Scott | 50 min |
| May 21, 8:27 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 63 min |
| May 21, 8:42 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 48 min |
| May 21, 8:57 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Scott | 53 min |
| May 21, 9:00 PM CDT | Severe Thunderstorm Warning | ILX | Bureau, Stark | 60 min |
| May 21, 9:28 PM CDT | Severe Thunderstorm Warning | ILX | Lee | 47 min |
| May 21, 9:28 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Sangamon | 62 min |
| May 21, 9:28 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 62 min |
| May 21, 9:47 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Mason, Tazewell, Woodford | 58 min |
| May 21, 10:07 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 53 min |
| May 21, 10:09 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Sangamon | 31 min |
| May 21, 10:09 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon | 66 min |
| May 21, 11:06 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 54 min |
| May 21, 11:37 PM CDT | Severe Thunderstorm Warning | ILX | Winnebago | 23 min |
| May 30, 12:49 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 56 min |
| May 31, 6:41 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 64 min |
| May 31, 7:21 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 24 min |
| May 31, 7:54 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 66 min |
| May 31, 9:50 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 55 min |
| Jun 2, 2:32 AM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Ogle | 43 min |
| Jun 2, 12:12 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 48 min |
| Jun 2, 12:12 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 48 min |
| Jun 2, 12:19 PM CDT | Severe Thunderstorm Warning | ILX | McDonough | 41 min |
| Jun 2, 12:20 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 55 min |
| Jun 2, 12:34 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 56 min |
| Jun 2, 1:03 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 57 min |
| Jun 2, 1:09 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 55 min |
| Jun 2, 1:47 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 58 min |
| Jun 2, 2:01 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 44 min |
| Jun 2, 2:05 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 55 min |
| Jun 2, 2:12 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 48 min |
| Jun 2, 2:38 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 67 min |
| Jun 2, 2:44 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard | 46 min |
| Jun 2, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Cumberland, Shelby | 50 min |
| Jun 2, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 50 min |
| Jun 11, 8:03 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 57 min |
| Jun 12, 8:45 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 60 min |
| Jun 12, 9:15 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 90 min |
| Jun 12, 9:45 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 30 min |
| Jun 13, 2:28 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 62 min |
| Jun 13, 5:01 PM CDT | Severe Thunderstorm Warning | IND | Lawrence, Wabash | 59 min |
| Jun 16, 3:13 PM CDT | Severe Thunderstorm Warning | LSX | Perry, Randolph, Washington | 47 min |
| Jun 16, 4:08 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 52 min |
| Jun 22, 4:44 PM CDT | Severe Thunderstorm Warning | IND | Wabash | 31 min |
| Jun 28, 6:01 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 59 min |
| Jun 28, 6:10 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 50 min |
| Jun 29, 1:56 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 64 min |
| Jun 29, 3:00 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 30 min |
| Jun 29, 3:04 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 41 min |
| Jun 29, 4:47 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 43 min |
| Jul 4, 2:51 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon | 54 min |
| Jul 4, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 25 min |
| Jul 5, 1:15 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 45 min |
| Jul 5, 1:15 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 45 min |
| Jul 5, 2:22 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery, Morgan | 38 min |
| Jul 5, 3:15 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 45 min |
| Jul 5, 8:09 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 36 min |
| Jul 6, 11:20 AM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 55 min |
| Jul 6, 12:00 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 60 min |
| Jul 6, 12:55 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 65 min |
| Jul 6, 1:05 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Marion, Washington | 40 min |
| Jul 6, 1:44 PM CDT | Severe Thunderstorm Warning | IND | Clay, Wayne | 46 min |
| Jul 6, 1:52 PM CDT | Severe Thunderstorm Warning | ILX | Carroll | 53 min |
| Jul 6, 2:00 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 60 min |
| Jul 6, 2:13 PM CDT | Severe Thunderstorm Warning | IND | Edwards, Richland | 32 min |
| Jul 6, 2:21 PM CDT | Severe Thunderstorm Warning | ILX | Stephenson | 54 min |
| Jul 6, 2:23 PM CDT | Severe Thunderstorm Warning | IND | Lawrence, Wabash | 37 min |
| Jul 6, 2:54 PM CDT | Severe Thunderstorm Warning | ILX | Winnebago | 51 min |
| Jul 6, 3:10 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 50 min |
| Jul 6, 3:13 PM CDT | Severe Thunderstorm Warning | ILX | Boone | 17 min |
| Jul 6, 3:24 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 39 min |
| Jul 6, 3:45 PM CDT | Severe Thunderstorm Warning | LOT | Kane, McHenry | 60 min |
| Jul 6, 4:24 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 51 min |
| Jul 6, 4:37 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin | 53 min |
| Jul 6, 4:45 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 60 min |
| Jul 6, 4:55 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 35 min |
| Jul 6, 5:26 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 64 min |
| Jul 6, 5:52 PM CDT | Severe Thunderstorm Warning | LSX | Effingham | 53 min |
| Jul 6, 6:55 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Edgar | 45 min |
| Jul 7, 3:39 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton | 36 min |
| Jul 8, 6:56 PM CDT | Severe Thunderstorm Warning | ILX | Ogle | 49 min |
| Jul 9, 11:25 AM CDT | Severe Thunderstorm Warning | ILX | Macon | 36 min |
| Jul 10, 4:06 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 24 min |
| Jul 10, 4:48 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 57 min |
| Jul 10, 5:33 PM CDT | Severe Thunderstorm Warning | LOT | Kendall, Will | 57 min |
| Jul 10, 6:24 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 66 min |
| Jul 10, 6:31 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin | 59 min |
| Jul 10, 9:41 PM CDT | Severe Thunderstorm Warning | IND | Richland | 34 min |
| Jul 10, 10:04 PM CDT | Severe Thunderstorm Warning | IND | Lawrence | 26 min |
| Jul 12, 6:33 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 42 min |
| Jul 15, 3:00 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 30 min |
| Jul 15, 4:10 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 20 min |
| Jul 21, 5:12 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 48 min |
| Jul 26, 3:32 PM CDT | Severe Thunderstorm Warning | ILX | Ogle, Stephenson | 43 min |
| Jul 26, 4:21 PM CDT | Severe Thunderstorm Warning | ILX | Boone, DeKalb, Winnebago | 54 min |
| Jul 26, 4:35 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 55 min |
| Jul 26, 5:10 PM CDT | Severe Thunderstorm Warning | LOT | Kane, McHenry | 50 min |
| Jul 26, 5:30 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kane, McHenry | 60 min |
| Jul 26, 5:30 PM CDT | Severe Thunderstorm Warning | LOT | DuPage | 60 min |
| Jul 26, 5:47 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Moultrie | 58 min |
| Jul 26, 6:08 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Lake | 32 min |
| Jul 26, 11:37 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Sangamon | 68 min |
| Jul 27, 1:32 PM CDT | Severe Thunderstorm Warning | IND | Crawford, Lawrence | 43 min |
| Jul 27, 4:05 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Saline | 55 min |
| Jul 27, 4:55 PM CDT | Severe Thunderstorm Warning | PAH | Pulaski | 50 min |
| Jul 28, 7:45 PM CDT | Severe Thunderstorm Warning | IND | Gallatin, White | 45 min |
| Jul 29, 5:33 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 57 min |
| Jul 29, 5:54 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 66 min |
| Jul 29, 6:16 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 14 min |
| Jul 29, 6:16 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 14 min |
| Jul 30, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 28 min |
| Jul 30, 4:59 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox | 31 min |
| Jul 30, 5:38 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Edgar | 67 min |
| Jul 31, 2:56 PM CDT | Severe Thunderstorm Warning | ILX | Woodford | 64 min |
| Jul 31, 4:05 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 55 min |
| Aug 3, 2:59 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island, Whiteside | 16 min |
| Aug 3, 3:52 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Stark | 68 min |
| Aug 3, 4:27 PM CDT | Severe Thunderstorm Warning | ILX | Boone, Winnebago | 48 min |
| Aug 3, 5:02 PM CDT | Severe Thunderstorm Warning | ILX | Peoria | 58 min |
| Aug 3, 5:15 PM CDT | Severe Thunderstorm Warning | PAH | Hardin | 45 min |
| Aug 3, 5:19 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 56 min |
| Aug 3, 5:19 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Putnam | 56 min |
| Aug 3, 5:42 PM CDT | Severe Thunderstorm Warning | ILX | Henderson, McDonough, Warren | 48 min |
| Aug 3, 5:42 PM CDT | Severe Thunderstorm Warning | ILX | Hancock | 48 min |
| Aug 3, 6:35 PM CDT | Severe Thunderstorm Warning | ILX | McDonough | 55 min |
| Aug 3, 6:55 PM CDT | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 65 min |
| Aug 3, 9:45 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 60 min |
| Aug 8, 8:51 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Sangamon | 69 min |
| Aug 8, 9:30 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 60 min |
| Aug 16, 5:17 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 43 min |
| Aug 16, 6:12 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 33 min |
| Aug 16, 6:15 PM CDT | Severe Thunderstorm Warning | ILX | Stephenson, Winnebago | 45 min |
| Aug 16, 6:38 PM CDT | Severe Thunderstorm Warning | ILX | Carroll | 52 min |
| Aug 16, 6:48 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 42 min |
| Aug 16, 7:02 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 28 min |
| Aug 16, 7:11 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 49 min |
| Aug 16, 7:48 PM CDT | Severe Thunderstorm Warning | LSX | Brown, Pike | 42 min |
| Aug 16, 8:34 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 56 min |
| Aug 16, 9:17 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard, Sangamon | 58 min |
| Aug 16, 9:36 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 54 min |
| Aug 16, 10:06 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon | 69 min |
| Aug 16, 10:31 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 59 min |
| Aug 16, 10:40 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 65 min |
| Aug 20, 8:18 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 27 min |
| Aug 21, 1:49 AM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 26 min |
| Aug 21, 2:18 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer, Rock Island | 42 min |
| Aug 21, 3:31 AM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 29 min |
| Aug 21, 4:01 AM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 59 min |
| Aug 21, 4:01 AM CDT | Severe Thunderstorm Warning | DVN | Mercer | 59 min |
| Aug 21, 4:57 AM CDT | Severe Thunderstorm Warning | DVN | Henry | 33 min |
| Aug 21, 5:28 AM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 47 min |
| Aug 21, 5:34 AM CDT | Severe Thunderstorm Warning | ILX | Bureau, Knox, Stark | 26 min |
| Sep 16, 4:50 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, McDonough, Warren | 55 min |
| Sep 16, 5:50 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 55 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cook County9
- Rock Island County9
- Saint Clair County8
- Henry County8
- Sangamon County8
- Champaign County8
- Kane County7
- Tazewell County7
- Whiteside County7
- Vermilion County6
- Adams County6
- Knox County6
- DuPage County5
- Iroquois County5
- Pike County5
- McDonough County5
- Menard County5
- Woodford County5
- Macon County5
- Winnebago County5
- Madison County4
- DeWitt County4
- Monroe County4
- McHenry County4
- LaSalle County4
- Stark County4
- Brown County4
- Calhoun County4
- Cass County4
- Morgan County4
- Logan County4
- Will County4
- Lawrence County4
- Piatt County3
- DeKalb County3
- Peoria County3
- Mercer County3
- Randolph County3
- Greene County3
- Scott County3
59 more counties
- Bureau County3
- Ogle County3
- Edgar County3
- Jackson County3
- Wabash County3
- Washington County3
- Macoupin County3
- Jo Daviess County3
- Stephenson County3
- Boone County3
- Hardin County2
- Lake County2
- Lee County2
- Kendall County2
- Christian County2
- Mason County2
- Livingston County2
- Ford County2
- Franklin County2
- Montgomery County2
- Jersey County2
- Clinton County2
- Carroll County2
- Richland County2
- Fayette County2
- Coles County2
- Fulton County2
- Warren County2
- Alexander County1
- Grundy County1
- Schuyler County1
- McLean County1
- Kankakee County1
- Clark County1
- Cumberland County1
- Shelby County1
- Perry County1
- Williamson County1
- Massac County1
- Pope County1
- Jefferson County1
- Marion County1
- Clay County1
- Wayne County1
- Edwards County1
- Effingham County1
- Bond County1
- Moultrie County1
- Crawford County1
- Johnson County1
- Saline County1
- Pulaski County1
- Gallatin County1
- White County1
- Douglas County1
- Marshall County1
- Putnam County1
- Henderson County1
- Hancock County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19861988
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.