Alert archive / Illinois / 2004
Weather alerts in Illinois, April 2004
73 weather alerts in April 2004, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in April 2004. Tap one for its archive.
- Alerts
- 73
- Warnings
- 59
- Watches
- 3
- Advisories
- 0
- Busiest day
- April 21, 200427 alerts
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 |
|---|---|---|---|---|
| Apr 17, 1:14 AM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 46 min |
| Apr 17, 1:25 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 7 more | 65 min |
| Apr 17, 3:13 AM CDT | Severe Thunderstorm Warning | LOT | Lake | 32 min |
| Apr 17, 3:21 AM CDT | Special Marine Warning | LOT | 69 min | |
| Apr 17, 3:21 AM CDT | Special Marine Warning | LOT | 69 min | |
| Apr 17, 3:21 AM CDT | Special Marine Warning | LOT | 69 min | |
| Apr 17, 3:25 AM CDT | Severe Thunderstorm Warning | LOT | Cook | 20 min |
| Apr 17, 4:00 AM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 45 min |
| Apr 20, 2:30 PM CDT | Tornado Warning | ILX | Champaign | 45 min |
| Apr 20, 4:42 PM CDT | Severe Thunderstorm Warning | ILX | Mason | 63 min |
| Apr 20, 5:11 PM CDT | Tornado Warning | ILX | Marshall | 64 min |
| Apr 20, 5:14 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 61 min |
| Apr 20, 5:15 PM CDT | Tornado Warning | DVN | Bureau, Putnam | 45 min |
| Apr 20, 5:27 PM CDT | Tornado Warning | ILX | Tazewell | 63 min |
| Apr 20, 5:33 PM CDT | Tornado Warning | LOT | LaSalle | 42 min |
| Apr 20, 5:40 PM CDT | Tornado Watch | SPC | Bureau, Champaign, DeWitt, Ford, Fulton, Grundy and 20 more | 5 hr |
| Apr 20, 5:49 PM CDT | Tornado Warning | ILX | Knox, Stark | 41 min |
| Apr 20, 5:51 PM CDT | Tornado Warning | ILX | Marshall | 9 min |
| Apr 20, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 35 min |
| Apr 20, 5:55 PM CDT | Tornado Warning | ILX | Marshall | 35 min |
| Apr 20, 6:00 PM CDT | Mesoscale Discussion | SPC | Bureau, Champaign, DeWitt, Ford, Fulton, Grundy and 20 more | 2 hr |
| Apr 20, 6:04 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 56 min |
| Apr 20, 6:05 PM CDT | Tornado Warning | ILX | Woodford | 55 min |
| Apr 20, 6:11 PM CDT | Tornado Warning | LOT | LaSalle | 34 min |
| Apr 20, 6:26 PM CDT | Tornado Warning | LOT | Grundy | 34 min |
| Apr 20, 6:37 PM CDT | Tornado Warning | LOT | Ford, Iroquois, Livingston | 38 min |
| Apr 20, 6:43 PM CDT | Tornado Warning | LOT | Kendall, LaSalle | 32 min |
| Apr 20, 7:01 PM CDT | Tornado Warning | LOT | Grundy, Will | 29 min |
| Apr 20, 7:13 PM CDT | Tornado Warning | LOT | Kankakee | 32 min |
| Apr 20, 7:15 PM CDT | Tornado Warning | LOT | Iroquois | 30 min |
| Apr 20, 7:17 PM CDT | Tornado Warning | LOT | Livingston | 43 min |
| Apr 20, 7:17 PM CDT | Tornado Warning | LOT | DuPage, Kane, Kendall | 28 min |
| Apr 20, 7:21 PM CDT | Tornado Warning | LOT | LaSalle | 24 min |
| Apr 20, 7:31 PM CDT | Tornado Warning | LOT | Will | 29 min |
| Apr 20, 7:34 PM CDT | Tornado Warning | LOT | Grundy | 41 min |
| Apr 20, 7:35 PM CDT | Tornado Warning | DVN | Carroll, Jo Daviess | 65 min |
| Apr 20, 7:44 PM CDT | Tornado Warning | LOT | Kendall | 31 min |
| Apr 20, 7:44 PM CDT | Tornado Warning | LOT | Kankakee | 46 min |
| Apr 20, 7:47 PM CDT | Tornado Warning | LOT | Kendall | 28 min |
| Apr 20, 7:53 PM CDT | Special Marine Warning | LOT | 82 min | |
| Apr 20, 7:53 PM CDT | Special Marine Warning | LOT | 82 min | |
| Apr 20, 7:53 PM CDT | Special Marine Warning | LOT | 82 min | |
| Apr 20, 8:02 PM CDT | Tornado Warning | LOT | Cook, Will | 28 min |
| Apr 20, 8:03 PM CDT | Flash Flood Warning | LOT | Cook, Will | 3 hr |
| Apr 20, 8:12 PM CDT | Tornado Warning | LOT | DuPage, Kane, Kendall | 33 min |
| Apr 20, 8:27 PM CDT | Tornado Warning | LOT | Cook, Will | 48 min |
| Apr 20, 8:55 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more | 65 min |
| Apr 20, 9:11 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 49 min |
| Apr 20, 9:16 PM CDT | Special Marine Warning | LOT | 89 min | |
| Apr 20, 9:16 PM CDT | Special Marine Warning | LOT | 89 min | |
| Apr 20, 9:16 PM CDT | Special Marine Warning | LOT | 89 min | |
| Apr 20, 9:38 PM CDT | Mesoscale Discussion | SPC | Calhoun | 37 min |
| Apr 20, 11:10 PM CDT | Mesoscale Discussion | SPC | Brown, Calhoun, Cass, Christian, Fulton, Greene and 15 more | 2 hr |
| Apr 21, 2:58 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Jackson and 13 more | 92 min |
| Apr 21, 7:45 PM CDT | Flash Flood Warning | PAH | Jackson, Williamson | 2 hr |
| Apr 24, 5:08 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 2 hr |
| Apr 24, 6:40 PM CDT | Tornado Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 6 more | 5 hr |
| Apr 24, 7:44 PM CDT | Tornado Warning | LSX | Randolph | 46 min |
| Apr 24, 8:09 PM CDT | Tornado Warning | PAH | Jackson, Perry | 51 min |
| Apr 24, 8:15 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 6 more | 60 min |
| Apr 24, 8:24 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 51 min |
| Apr 24, 9:00 PM CDT | Tornado Warning | PAH | Jackson | 15 min |
| Apr 24, 9:51 PM CDT | Mesoscale Discussion | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Saline and 2 more | 54 min |
| Apr 30, 10:59 AM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 54 more | 2 hr |
| Apr 30, 1:52 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Franklin, Gallatin, Hamilton, Hardin and 15 more | 113 min |
| Apr 30, 4:41 PM CDT | Severe Thunderstorm Warning | PAH | Massac | 49 min |
| Apr 30, 4:52 PM CDT | Severe Thunderstorm Warning | PAH | Pope | 53 min |
| Apr 30, 4:57 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Hamilton, Hardin, Saline, White | 63 min |
| Apr 30, 5:08 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash, Wayne | 67 min |
| Apr 30, 5:10 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Richland | 65 min |
| Apr 30, 5:47 PM CDT | Severe Thunderstorm Warning | PAH | Wabash | 58 min |
| Apr 30, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Crawford, Lawrence | 3 hr |
| Apr 30, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Jasper, Lawrence | 65 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 17 |
| Tornado Warning | 31 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 11 |
| Flooding | |
| Flash Flood Warning | 2 |
| Marine | |
| Special Marine Warning | 9 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jackson County8
- Massac County8
- Pope County8
- Cook County7
- Will County7
- Tazewell County7
- LaSalle County7
- Gallatin County7
- Johnson County7
- Saline County7
- Williamson County7
- Hardin County7
- Grundy County6
- Kendall County6
- Alexander County6
- Pulaski County6
- Union County6
- White County6
- Mason County5
- Marshall County5
- Iroquois County5
- Kankakee County5
- Livingston County5
- DuPage County4
- Kane County4
- Champaign County4
- Bureau County4
- Ford County4
- Fulton County4
- Logan County4
- McLean County4
- Hamilton County4
- Wayne County4
- Jo Daviess County3
- Stephenson County3
- Carroll County3
- Lake County3
- Putnam County3
- DeWitt County3
- Knox County3
57 more counties
- Piatt County3
- Stark County3
- Woodford County3
- Calhoun County3
- Monroe County3
- Saint Clair County3
- Edwards County3
- Franklin County3
- Jefferson County3
- Lawrence County3
- Richland County3
- Wabash County3
- Randolph County3
- Perry County3
- Boone County2
- DeKalb County2
- Lee County2
- McHenry County2
- Ogle County2
- Whiteside County2
- Winnebago County2
- Henry County2
- McDonough County2
- Peoria County2
- Rock Island County2
- Vermilion County2
- Warren County2
- Brown County2
- Cass County2
- Christian County2
- Greene County2
- Jersey County2
- Macoupin County2
- Madison County2
- Menard County2
- Montgomery County2
- Morgan County2
- Pike County2
- Sangamon County2
- Schuyler County2
- Scott County2
- Clay County2
- Clinton County2
- Jasper County2
- Washington County2
- Crawford County2
- Adams County1
- Bond County1
- Coles County1
- Cumberland County1
- Douglas County1
- Effingham County1
- Fayette County1
- Macon County1
- Marion County1
- Moultrie County1
- Shelby 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.