Alert archive / Illinois / Severe Thunderstorm Warnings / 2004
Severe Thunderstorm Warnings in Illinois, August 2004
86 severe thunderstorm warnings in August 2004. 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 2004. Tap one for its archive.
- Severe Thunderstorm Warnings
- 86
- Busiest day
- August 4, 200415 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 2, 1:21 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 39 min |
| Aug 2, 3:42 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 48 min |
| Aug 3, 8:05 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle, Winnebago | 85 min |
| Aug 3, 8:26 PM CDT | Severe Thunderstorm Warning | DVN | Stephenson | 34 min |
| Aug 3, 8:31 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 29 min |
| Aug 3, 9:10 PM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb | 65 min |
| Aug 3, 9:16 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 89 min |
| Aug 3, 9:40 PM CDT | Severe Thunderstorm Warning | LOT | Kane, Kendall | 65 min |
| Aug 3, 9:53 PM CDT | Severe Thunderstorm Warning | LOT | Grundy | 52 min |
| Aug 3, 9:58 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 92 min |
| Aug 3, 10:35 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 55 min |
| Aug 3, 11:16 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 44 min |
| Aug 3, 11:36 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 54 min |
| Aug 3, 11:50 PM CDT | Severe Thunderstorm Warning | ILX | Stark | 40 min |
| Aug 4, 12:24 AM CDT | Severe Thunderstorm Warning | ILX | Marshall | 66 min |
| Aug 4, 1:14 AM CDT | Severe Thunderstorm Warning | LOT | Livingston | 31 min |
| Aug 4, 1:45 AM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 30 min |
| Aug 9, 5:58 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 62 min |
| Aug 9, 6:24 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard | 66 min |
| Aug 9, 7:03 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 57 min |
| Aug 9, 7:15 PM CDT | Severe Thunderstorm Warning | ILX | Macon, Piatt | 60 min |
| Aug 17, 3:19 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 41 min |
| Aug 17, 4:34 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 56 min |
| Aug 17, 5:12 PM CDT | Severe Thunderstorm Warning | LOT | Will | 48 min |
| Aug 17, 5:22 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 68 min |
| Aug 17, 6:09 PM CDT | Severe Thunderstorm Warning | LOT | Grundy | 66 min |
| Aug 17, 6:23 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 67 min |
| Aug 17, 6:51 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Peoria, Woodford | 54 min |
| Aug 17, 6:59 PM CDT | Severe Thunderstorm Warning | ILX | Stark | 61 min |
| Aug 17, 7:31 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 44 min |
| Aug 17, 8:07 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 53 min |
| Aug 17, 9:05 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 70 min |
| Aug 17, 9:16 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 59 min |
| Aug 17, 9:21 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 54 min |
| Aug 17, 9:51 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Woodford | 54 min |
| Aug 18, 4:55 PM CDT | Severe Thunderstorm Warning | ILX | Moultrie | 35 min |
| Aug 18, 5:19 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas | 56 min |
| Aug 18, 5:47 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Edgar | 58 min |
| Aug 18, 6:03 PM CDT | Severe Thunderstorm Warning | DVN | Warren | 57 min |
| Aug 18, 6:14 PM CDT | Severe Thunderstorm Warning | ILX | Coles | 61 min |
| Aug 18, 6:22 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 53 min |
| Aug 18, 7:28 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 62 min |
| Aug 18, 7:44 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Warren | 76 min |
| Aug 18, 8:03 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 57 min |
| Aug 18, 8:16 PM CDT | Severe Thunderstorm Warning | ILX | Fulton | 59 min |
| Aug 18, 8:55 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 65 min |
| Aug 18, 8:58 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 62 min |
| Aug 19, 5:26 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 49 min |
| Aug 19, 5:51 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 24 min |
| Aug 19, 7:32 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 43 min |
| Aug 24, 12:35 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall | 40 min |
| Aug 24, 1:58 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 47 min |
| Aug 24, 2:27 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 48 min |
| Aug 24, 2:31 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 59 min |
| Aug 24, 2:35 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 40 min |
| Aug 24, 2:44 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 61 min |
| Aug 24, 5:23 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 37 min |
| Aug 24, 5:24 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 36 min |
| Aug 24, 7:13 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 47 min |
| Aug 25, 10:56 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 64 min |
| Aug 25, 12:37 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 38 min |
| Aug 25, 1:02 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 58 min |
| Aug 25, 2:01 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard, Morgan, Sangamon | 59 min |
| Aug 25, 4:07 PM CDT | Severe Thunderstorm Warning | ILX | Mason | 38 min |
| Aug 25, 5:23 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 22 min |
| Aug 25, 5:27 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 33 min |
| Aug 25, 5:31 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 44 min |
| Aug 25, 5:51 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison, Saint Clair | 39 min |
| Aug 25, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 65 min |
| Aug 26, 4:27 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 48 min |
| Aug 26, 5:18 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 27 min |
| Aug 26, 5:42 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 63 min |
| Aug 26, 11:22 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 53 min |
| Aug 27, 12:59 AM CDT | Severe Thunderstorm Warning | LOT | Ogle, Winnebago | 46 min |
| Aug 27, 1:33 AM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb | 42 min |
| Aug 27, 1:35 AM CDT | Severe Thunderstorm Warning | DVN | Hancock | 45 min |
| Aug 27, 1:56 AM CDT | Severe Thunderstorm Warning | ILX | Knox | 64 min |
| Aug 27, 1:56 AM CDT | Severe Thunderstorm Warning | LOT | Kane, McHenry | 49 min |
| Aug 27, 2:19 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Schuyler | 56 min |
| Aug 27, 2:30 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kendall, Lake, LaSalle, Will | 45 min |
| Aug 27, 9:06 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 54 min |
| Aug 27, 9:43 PM CDT | Severe Thunderstorm Warning | ILX | Piatt | 62 min |
| Aug 28, 1:40 AM CDT | Severe Thunderstorm Warning | LOT | Grundy, Livingston | 50 min |
| Aug 28, 2:07 AM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 38 min |
| Aug 28, 2:31 AM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall, Will | 44 min |
| Aug 28, 2:03 PM CDT | Severe Thunderstorm Warning | PAH | White | 27 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- LaSalle County6
- Will County5
- Grundy County5
- Sangamon County5
- Cook County4
- DeKalb County4
- Kane County4
- Kendall County4
- Livingston County4
- Peoria County4
- Morgan County4
- Iroquois County3
- Menard County3
- Knox County3
- Tazewell County3
- Fulton County3
- Saint Clair County3
- Macoupin County3
- Jersey County3
- Ogle County2
- Winnebago County2
- Boone County2
- DuPage County2
- Kankakee County2
- Ford County2
- Stark County2
- Marshall County2
- DeWitt County2
- Macon County2
- Piatt County2
- Woodford County2
- Coles County2
- Warren County2
- Madison County2
- Lake County2
- McHenry County2
- Mason County2
- Calhoun County2
- Greene County2
- Lee County1
22 more counties
- Stephenson County1
- Whiteside County1
- Logan County1
- Rock Island County1
- McLean County1
- Moultrie County1
- Douglas County1
- Clark County1
- Edgar County1
- Henderson County1
- Marion County1
- Clinton County1
- Randolph County1
- Monroe County1
- Montgomery County1
- Pike County1
- Scott County1
- Cass County1
- Jo Daviess County1
- Hancock County1
- Schuyler County1
- White County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.