Alert archive / Illinois / Severe Thunderstorm Warnings / 2018
Severe Thunderstorm Warnings in Illinois, August 2018
53 severe thunderstorm warnings in August 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 2018. Tap one for its archive.
- Severe Thunderstorm Warnings
- 53
- Busiest day
- August 7, 201813 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 1, 5:17 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane, Will | 18 min |
| Aug 2, 5:18 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 25 min |
| Aug 2, 5:32 PM CDT | Severe Thunderstorm Warning | ILX | Moultrie, Shelby | 43 min |
| Aug 2, 5:54 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 36 min |
| Aug 2, 6:47 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 43 min |
| Aug 2, 6:58 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 47 min |
| Aug 2, 7:28 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 47 min |
| Aug 5, 6:10 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 50 min |
| Aug 5, 6:45 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson | 45 min |
| Aug 5, 7:44 PM CDT | Severe Thunderstorm Warning | LOT | Ogle, Winnebago | 31 min |
| Aug 5, 10:20 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 55 min |
| Aug 6, 6:27 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 48 min |
| Aug 6, 7:22 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 30 min |
| Aug 6, 7:39 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 43 min |
| Aug 6, 8:24 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 51 min |
| Aug 6, 10:14 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 46 min |
| Aug 6, 10:30 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 15 min |
| Aug 6, 10:46 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 44 min |
| Aug 7, 12:35 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Mason, Peoria, Schuyler, Tazewell | 40 min |
| Aug 7, 1:20 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Logan, Mason, Menard, Tazewell | 40 min |
| Aug 7, 1:35 AM CDT | Severe Thunderstorm Warning | ILX | Logan, McLean, Tazewell | 40 min |
| Aug 7, 1:45 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 33 min |
| Aug 7, 2:13 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Macon | 15 min |
| Aug 7, 3:03 AM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 42 min |
| Aug 7, 3:12 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 33 min |
| Aug 9, 7:38 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 20 min |
| Aug 10, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 43 min |
| Aug 10, 4:27 PM CDT | Severe Thunderstorm Warning | ILX | Moultrie | 48 min |
| Aug 15, 2:14 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 31 min |
| Aug 15, 3:02 PM CDT | Severe Thunderstorm Warning | PAH | Hardin | 28 min |
| Aug 16, 9:10 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 50 min |
| Aug 16, 9:51 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard | 39 min |
| Aug 16, 10:25 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 50 min |
| Aug 16, 11:09 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Sangamon | 51 min |
| Aug 17, 1:52 AM CDT | Severe Thunderstorm Warning | ILX | Champaign | 26 min |
| Aug 17, 1:55 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 35 min |
| Aug 20, 7:02 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 28 min |
| Aug 26, 11:24 PM CDT | Severe Thunderstorm Warning | LOT | Winnebago | 36 min |
| Aug 26, 11:37 PM CDT | Severe Thunderstorm Warning | LOT | Winnebago | 24 min |
| Aug 28, 5:59 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 61 min |
| Aug 28, 6:18 PM CDT | Severe Thunderstorm Warning | DVN | Mercer | 42 min |
| Aug 28, 6:41 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 64 min |
| Aug 28, 6:45 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer, Rock Island | 60 min |
| Aug 28, 7:00 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Whiteside | 60 min |
| Aug 28, 7:38 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Carroll, Henry, Whiteside | 52 min |
| Aug 28, 7:45 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Lee, Ogle | 60 min |
| Aug 28, 8:50 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 40 min |
| Aug 28, 9:10 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer | 65 min |
| Aug 28, 9:18 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane, Kendall, Will | 42 min |
| Aug 28, 9:20 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria, Stark | 40 min |
| Aug 28, 9:26 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Mason, Schuyler | 49 min |
| Aug 28, 9:29 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane | 61 min |
| Aug 28, 10:00 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason, Peoria, Tazewell | 45 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Vermilion County7
- Fulton County5
- DuPage County4
- Iroquois County4
- Jo Daviess County4
- Mason County4
- Tazewell County4
- Menard County4
- Sangamon County4
- Henry County4
- Kane County3
- Carroll County3
- Winnebago County3
- Cass County3
- Peoria County3
- Logan County3
- Rock Island County3
- Mercer County3
- Whiteside County3
- Will County2
- Saint Clair County2
- Moultrie County2
- Ogle County2
- Champaign County2
- Schuyler County2
- McLean County2
- Macon County2
- Cook County2
- Monroe County1
- Shelby County1
- Stephenson County1
- Ford County1
- Calhoun County1
- DeWitt County1
- Morgan County1
- Gallatin County1
- Madison County1
- Alexander County1
- Pulaski County1
- Hardin County1
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.