Alert archive / Illinois / 2025
Weather alerts in Illinois, August 2025
293 weather alerts in August 2025, 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 August 2025. Tap one for its archive.
- Alerts
- 293
- Warnings
- 115
- Watches
- 11
- Advisories
- 67
- Busiest day
- August 17, 202566 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 |
|---|---|---|---|---|
| Aug 4, 1:34 PM CDT | Areal Flood Advisory | PAH | Edwards | 3 hr |
| Aug 4, 1:47 PM CDT | Areal Flood Advisory | PAH | Wayne | 3 hr |
| Aug 4, 2:21 PM CDT | Areal Flood Advisory | PAH | Hamilton | 3 hr |
| Aug 4, 2:54 PM CDT | Flash Flood Warning | PAH | Hamilton, Wayne | 2 hr |
| Aug 4, 3:20 PM CDT | Flash Flood Warning | PAH | Hamilton | 4 hr |
| Aug 4, 3:39 PM CDT | Areal Flood Advisory | ILX | Clark, Crawford, Jasper, Lawrence, Richland | 3 hr |
| Aug 4, 3:46 PM CDT | Special Weather Statement | PAH | Saline | 29 min |
| Aug 4, 4:11 PM CDT | Special Weather Statement | PAH | Johnson | 49 min |
| Aug 4, 4:35 PM CDT | Areal Flood Advisory | PAH | Johnson | 3 hr |
| Aug 4, 4:43 PM CDT | Flash Flood Warning | ILX | Crawford, Lawrence | 3 hr |
| Aug 5, 5:31 PM CDT | Special Weather Statement | PAH | Wayne | 29 min |
| Aug 6, 7:58 PM CDT | Special Weather Statement | DVN | Mercer | 47 min |
| Aug 6, 8:31 PM CDT | Flash Flood Warning | DVN | Mercer | 107 min |
| Aug 7, 1:31 PM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 29 hr |
| Aug 7, 5:37 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 23 min |
| Aug 8, 2:15 PM CDT | Flood Watch | DVN | Carroll, Hancock, Henderson, Henry, Jo Daviess, Mercer and 4 more | 53 hr |
| Aug 9, 3:46 AM CDT | Small Craft Advisory | LOT | 15 hr | |
| Aug 9, 2:54 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Carroll, Cook and 32 more | 96 min |
| Aug 9, 3:00 PM CDT | Flood Watch | LSX | Adams | 23 hr |
| Aug 9, 4:49 PM CDT | Special Weather Statement | LOT | McHenry | 26 min |
| Aug 9, 5:14 PM CDT | Special Weather Statement | DVN | Bureau | 61 min |
| Aug 9, 6:16 PM CDT | Special Weather Statement | LOT | Lee | 29 min |
| Aug 9, 6:40 PM CDT | Special Weather Statement | LOT | DeKalb | 20 min |
| Aug 9, 6:54 PM CDT | Special Weather Statement | LOT | DeKalb | 21 min |
| Aug 9, 7:26 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 35 min |
| Aug 9, 7:41 PM CDT | Tornado Warning | LSX | Adams | 14 min |
| Aug 9, 7:47 PM CDT | Flood Watch | LOT | Boone, Lake, McHenry, Winnebago | 14 hr |
| Aug 10, 4:18 AM CDT | Flash Flood Warning | DVN | Mercer, Rock Island | 5 hr |
| Aug 10, 5:38 AM CDT | Special Weather Statement | DVN | Rock Island | 37 min |
| Aug 10, 7:01 AM CDT | Flash Flood Warning | DVN | Jo Daviess | 5 hr |
| Aug 10, 10:45 AM CDT | Areal Flood Advisory | LOT | Winnebago | 2 hr |
| Aug 10, 6:47 PM CDT | Special Marine Warning | LOT | 43 min | |
| Aug 10, 6:59 PM CDT | Special Weather Statement | LOT | Lake | 16 min |
| Aug 10, 7:23 PM CDT | Special Weather Statement | DVN | Hancock | 52 min |
| Aug 11, 7:35 PM CDT | Special Weather Statement | LOT | Marshall | 25 min |
| Aug 11, 8:02 PM CDT | Special Weather Statement | LOT | Grundy, LaSalle | 43 min |
| Aug 11, 9:15 PM CDT | Special Weather Statement | LOT | Kendall | 15 min |
| Aug 11, 9:24 PM CDT | Special Marine Warning | LOT | 66 min | |
| Aug 11, 9:43 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Will | 3 hr |
| Aug 11, 9:48 PM CDT | Special Weather Statement | LOT | DuPage | 27 min |
| Aug 11, 10:05 PM CDT | Special Marine Warning | LOT | 55 min | |
| Aug 11, 10:08 PM CDT | Special Weather Statement | LOT | Cook | 22 min |
| Aug 11, 10:21 PM CDT | Special Marine Warning | LOT | 69 min | |
| Aug 11, 10:53 PM CDT | Special Marine Warning | LOT | 60 min | |
| Aug 11, 11:51 PM CDT | Areal Flood Advisory | LOT | Cook | 114 min |
| Aug 12, 2:27 AM CDT | Special Weather Statement | DVN | Rock Island, Whiteside | 48 min |
| Aug 12, 3:33 AM CDT | Special Weather Statement | LOT | Ogle | 27 min |
| Aug 12, 3:37 AM CDT | Special Weather Statement | DVN | Carroll, Jo Daviess, Stephenson | 38 min |
| Aug 12, 3:54 AM CDT | Special Weather Statement | LOT | Ogle, Winnebago | 51 min |
| Aug 12, 4:27 AM CDT | Special Weather Statement | LOT | Boone | 48 min |
| Aug 12, 11:33 AM CDT | Flood Watch | LOT | Cook, DuPage, Will | 8 hr |
| Aug 12, 1:50 PM CDT | Special Weather Statement | LOT | Will | 40 min |
| Aug 12, 1:55 PM CDT | Special Weather Statement | ILX | Woodford | 35 min |
| Aug 12, 2:08 PM CDT | Special Weather Statement | LOT | Will | 37 min |
| Aug 12, 2:32 PM CDT | Special Marine Warning | LOT | 118 min | |
| Aug 12, 2:33 PM CDT | Areal Flood Advisory | LOT | Cook, Will | 3 hr |
| Aug 12, 2:37 PM CDT | Special Weather Statement | LOT | Will | 53 min |
| Aug 12, 2:44 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Coles, Cumberland, Douglas and 11 more | 2 hr |
| Aug 12, 2:48 PM CDT | Areal Flood Advisory | LSX | Madison, Saint Clair | 55 min |
| Aug 12, 3:05 PM CDT | Flash Flood Warning | LOT | Cook, Will | 3 hr |
| Aug 12, 3:26 PM CDT | Special Weather Statement | LOT | Kankakee, Livingston, Will | 64 min |
| Aug 12, 3:35 PM CDT | Special Weather Statement | LOT | Cook | 25 min |
| Aug 12, 3:36 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 24 min |
| Aug 12, 3:39 PM CDT | Areal Flood Advisory | LOT | Cook | 4 hr |
| Aug 12, 3:43 PM CDT | Flash Flood Warning | LSX | Madison, Saint Clair | 105 min |
| Aug 12, 3:45 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 30 min |
| Aug 12, 4:12 PM CDT | Severe Thunderstorm Warning | ILX | Macon, Piatt | 33 min |
| Aug 12, 4:20 PM CDT | Special Marine Warning | LOT | 115 min | |
| Aug 12, 4:29 PM CDT | Areal Flood Advisory | LOT | DuPage, Will | 117 min |
| Aug 12, 4:41 PM CDT | Areal Flood Advisory | ILX | Macon | 2 hr |
| Aug 12, 5:04 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Will | 3 hr |
| Aug 12, 5:28 PM CDT | Areal Flood Advisory | LSX | Madison, Saint Clair | 62 min |
| Aug 12, 5:42 PM CDT | Areal Flood Advisory | LOT | Livingston | 2 hr |
| Aug 12, 5:45 PM CDT | Special Weather Statement | ILX | Logan | 15 min |
| Aug 12, 5:45 PM CDT | Areal Flood Advisory | LOT | Cook, Will | 2 hr |
| Aug 12, 6:42 PM CDT | Flash Flood Warning | LOT | Livingston | 2 hr |
| Aug 12, 7:45 PM CDT | Areal Flood Advisory | ILX | Logan | 93 min |
| Aug 12, 7:53 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Will | 52 min |
| Aug 13, 4:51 AM CDT | River Flood Watch | MKX | Lake | 4 days |
| Aug 14, 2:34 PM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 5 days |
| Aug 15, 11:40 AM CDT | Heat Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more | 32 hr |
| Aug 15, 12:32 PM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 3 days |
| Aug 15, 2:16 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Whiteside | 6 hr |
| Aug 15, 3:32 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Whiteside | 88 min |
| Aug 15, 5:52 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henderson, Henry, Jo Daviess, Knox and 12 more | 83 min |
| Aug 15, 6:13 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 62 min |
| Aug 15, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Knox, LaSalle, Lee, Marshall, Ogle and 6 more | 2 hr |
| Aug 15, 7:04 PM CDT | Special Weather Statement | DVN | Henry, Mercer, Rock Island, Whiteside | 41 min |
| Aug 15, 7:22 PM CDT | Special Weather Statement | ILX | Knox | 38 min |
| Aug 15, 7:42 PM CDT | Special Weather Statement | DVN | Henry | 48 min |
| Aug 16, 1:41 AM CDT | Heat Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 4 days |
| Aug 16, 3:14 AM CDT | Special Weather Statement | ILX | Vermilion | 31 min |
| Aug 16, 3:29 AM CDT | Heat Advisory | LOT | Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 3 more | 17 hr |
| Aug 16, 11:56 AM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 2 more | 2 hr |
| Aug 16, 1:56 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 6 more | 5 hr |
| Aug 16, 2:34 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 5 more | 86 min |
| Aug 16, 2:43 PM CDT | Severe Thunderstorm Warning | LOT | Boone, McHenry, Winnebago | 47 min |
| Aug 16, 3:04 PM CDT | Severe Thunderstorm Warning | LOT | Boone, Winnebago | 40 min |
| Aug 16, 3:10 PM CDT | Special Marine Warning | LOT | 2 hr | |
| Aug 16, 3:21 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 54 min |
| Aug 16, 3:23 PM CDT | Special Weather Statement | ILX | Vermilion | 37 min |
| Aug 16, 3:36 PM CDT | Severe Thunderstorm Warning | LOT | Boone, McHenry, Winnebago | 39 min |
| Aug 16, 3:48 PM CDT | Special Marine Warning | LOT | 117 min | |
| Aug 16, 3:48 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DeKalb, Kane, Lake, McHenry, Ogle | 57 min |
| Aug 16, 3:48 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 42 min |
| Aug 16, 3:57 PM CDT | Flash Flood Warning | ILX | Vermilion | 2 hr |
| Aug 16, 4:10 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 50 min |
| Aug 16, 4:21 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 54 min |
| Aug 16, 4:23 PM CDT | Dust Storm Advisory | LOT | DeKalb, DuPage, Kane, Kendall, LaSalle, Lee and 1 more | 67 min |
| Aug 16, 4:44 PM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 3 more | 61 min |
| Aug 16, 5:00 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane, Kendall, Will | 45 min |
| Aug 16, 5:11 PM CDT | Flash Flood Warning | LOT | DuPage | 2 hr |
| Aug 16, 5:13 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 32 min |
| Aug 16, 5:34 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Will | 3 hr |
| Aug 16, 5:38 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kankakee, Will | 52 min |
| Aug 16, 5:50 PM CDT | Areal Flood Advisory | ILX | Vermilion | 2 hr |
| Aug 16, 5:59 PM CDT | Special Marine Warning | LOT | 2 hr | |
| Aug 16, 6:16 PM CDT | Special Weather Statement | LOT | Kankakee | 44 min |
| Aug 16, 6:20 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 25 min |
| Aug 16, 6:30 PM CDT | Special Weather Statement | DVN | Jo Daviess | 30 min |
| Aug 16, 6:33 PM CDT | Areal Flood Advisory | ILX | Vermilion | 31 min |
| Aug 16, 6:43 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 32 min |
| Aug 16, 6:45 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 45 min |
| Aug 16, 7:03 PM CDT | Severe Thunderstorm Warning | DVN | Stephenson | 45 min |
| Aug 16, 7:03 PM CDT | Flash Flood Warning | ILX | Champaign, Vermilion | 117 min |
| Aug 16, 7:09 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Lee, Ogle | 35 min |
| Aug 16, 7:13 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 32 min |
| Aug 16, 7:17 PM CDT | Special Marine Warning | LOT | 118 min | |
| Aug 16, 7:18 PM CDT | Special Weather Statement | LOT | Cook | 27 min |
| Aug 16, 7:43 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Lee | 16 min |
| Aug 16, 7:56 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 49 min |
| Aug 16, 8:06 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, DuPage, Grundy, Jo Daviess and 8 more | 84 min |
| Aug 16, 8:34 PM CDT | Special Weather Statement | LOT | Ford | 26 min |
| Aug 16, 8:40 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 35 min |
| Aug 16, 8:42 PM CDT | Special Weather Statement | LOT | Kankakee | 18 min |
| Aug 16, 8:53 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson | 38 min |
| Aug 16, 8:57 PM CDT | Special Weather Statement | LOT | Livingston | 18 min |
| Aug 16, 9:05 PM CDT | Areal Flood Advisory | LOT | Ford, Iroquois, Livingston | 3 hr |
| Aug 16, 9:19 PM CDT | Special Weather Statement | LOT | Ford | 26 min |
| Aug 16, 9:23 PM CDT | Special Weather Statement | LOT | Livingston | 22 min |
| Aug 16, 9:33 PM CDT | Flood Watch | DVN | Carroll, Jo Daviess, Stephenson | 12 hr |
| Aug 16, 9:40 PM CDT | Special Weather Statement | ILX | Vermilion | 35 min |
| Aug 16, 9:56 PM CDT | Areal Flood Advisory | LOT | Ford, Iroquois, Livingston | 4 hr |
| Aug 16, 10:12 PM CDT | Special Weather Statement | LOT | Ford | 18 min |
| Aug 16, 10:17 PM CDT | Special Weather Statement | ILX | McLean | 28 min |
| Aug 16, 10:19 PM CDT | Special Weather Statement | ILX | Vermilion | 26 min |
| Aug 16, 10:55 PM CDT | Areal Flood Advisory | ILX | Vermilion | 2 hr |
| Aug 16, 11:15 PM CDT | Special Weather Statement | LOT | Lake | 15 min |
| Aug 16, 11:19 PM CDT | Special Marine Warning | LOT | 56 min | |
| Aug 16, 11:27 PM CDT | Special Weather Statement | LOT | Lake | 18 min |
| Aug 16, 11:40 PM CDT | Special Weather Statement | ILX | Edgar | 35 min |
| Aug 16, 11:59 PM CDT | Special Marine Warning | LOT | 91 min | |
| Aug 17, 12:12 AM CDT | Special Weather Statement | ILX | Edgar | 33 min |
| Aug 17, 12:54 AM CDT | Areal Flood Advisory | LOT | Cook | 3 hr |
| Aug 17, 1:21 AM CDT | Areal Flood Advisory | LOT | Cook | 3 hr |
| Aug 17, 1:41 AM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Kane, Lake, McHenry | 2 hr |
| Aug 17, 1:46 AM CDT | Special Weather Statement | LOT | McHenry | 29 min |
| Aug 17, 2:04 AM CDT | Areal Flood Advisory | LOT | Kankakee, Will | 3 hr |
| Aug 17, 2:09 AM CDT | Heat Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 18 hr |
| Aug 17, 2:11 AM CDT | Special Weather Statement | LOT | Cook | 34 min |
| Aug 17, 2:17 AM CDT | Special Marine Warning | LOT | 65 min | |
| Aug 17, 2:27 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 48 min |
| Aug 17, 2:32 AM CDT | Flash Flood Warning | LOT | Cook, DuPage | 118 min |
| Aug 17, 2:48 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 27 min |
| Aug 17, 2:59 AM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 46 min |
| Aug 17, 3:14 AM CDT | Areal Flood Advisory | LOT | Boone, Cook, DeKalb, DuPage, Kane, Kankakee and 2 more | 3 hr |
| Aug 17, 3:16 AM CDT | Special Weather Statement | LOT | Will | 29 min |
| Aug 17, 3:28 AM CDT | Severe Thunderstorm Warning | LOT | Kankakee, Will | 47 min |
| Aug 17, 3:36 AM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kane, Kendall, Will | 114 min |
| Aug 17, 3:51 AM CDT | Special Weather Statement | LOT | Kankakee | 24 min |
| Aug 17, 4:13 AM CDT | Flash Flood Warning | LOT | Kane, Kendall, Will | 2 hr |
| Aug 17, 4:20 AM CDT | Flash Flood Warning | LOT | Grundy, Iroquois, Kankakee, Kendall, Will | 3 hr |
| Aug 17, 4:30 AM CDT | Areal Flood Advisory | LOT | Cook, DuPage | 3 hr |
| Aug 17, 5:16 AM CDT | Beach Hazards Statement | LOT | Cook, Lake | 34 hr |
| Aug 17, 5:16 AM CDT | Small Craft Advisory | LOT | 29 hr | |
| Aug 17, 5:22 AM CDT | Areal Flood Advisory | LOT | Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston | 113 min |
| Aug 17, 5:32 AM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Kane, Kendall, Will | 6 hr |
| Aug 17, 6:07 AM CDT | Areal Flood Advisory | LOT | Ford, LaSalle, Livingston | 113 min |
| Aug 17, 6:14 AM CDT | Areal Flood Warning | LOT | Kane, Kendall, Will | 6 hr |
| Aug 17, 6:28 AM CDT | Special Weather Statement | LOT | Kendall, Will | 32 min |
| Aug 17, 7:11 AM CDT | Areal Flood Advisory | LOT | Grundy, Iroquois, Kankakee, Kendall, Will | 3 hr |
| Aug 17, 7:35 AM CDT | Special Weather Statement | LOT | Grundy | 25 min |
| Aug 17, 9:47 AM CDT | River Flood Warning | LOT | Will | 11 hr |
| Aug 17, 2:30 PM CDT | Areal Flood Advisory | LSX | Adams | 41 min |
| Aug 17, 3:11 PM CDT | Flash Flood Warning | LSX | Adams | 106 min |
| Aug 17, 3:51 PM CDT | Mesoscale Discussion | SPC | Carroll, Lee, Whiteside | 84 min |
| Aug 17, 4:57 PM CDT | Areal Flood Warning | LSX | Adams | 78 min |
| Aug 17, 6:00 PM CDT | Special Weather Statement | DVN | Bureau, Carroll, Whiteside | 75 min |
| Aug 17, 6:57 PM CDT | Areal Flood Advisory | LOT | LaSalle | 2 hr |
| Aug 17, 7:07 PM CDT | Special Weather Statement | DVN | Putnam | 53 min |
| Aug 17, 7:17 PM CDT | Flash Flood Warning | LOT | LaSalle | 3 hr |
| Aug 17, 7:20 PM CDT | Flash Flood Warning | DVN | Bureau, Putnam | 2 hr |
| Aug 18, 3:03 AM CDT | Heat Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 16 hr |
| Aug 18, 11:10 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 18 more | 95 min |
| Aug 18, 12:07 PM CDT | Special Weather Statement | DVN | Stephenson | 68 min |
| Aug 18, 12:13 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 15 more | 9 hr |
| Aug 18, 1:14 PM CDT | Special Weather Statement | LOT | Winnebago | 46 min |
| Aug 18, 1:45 PM CDT | Special Weather Statement | LOT | Boone | 30 min |
| Aug 18, 2:12 PM CDT | Special Weather Statement | LOT | McHenry | 33 min |
| Aug 18, 2:21 PM CDT | Flood Watch | LOT | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more | 13 hr |
| Aug 18, 2:53 PM CDT | Special Weather Statement | LOT | DeKalb | 37 min |
| Aug 18, 3:17 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb | 43 min |
| Aug 18, 3:38 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 8 more | 97 min |
| Aug 18, 3:39 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane, Lee, Ogle | 51 min |
| Aug 18, 3:49 PM CDT | Areal Flood Advisory | LOT | DeKalb | 3 hr |
| Aug 18, 3:51 PM CDT | Mesoscale Discussion | SPC | Bureau, Hancock, Henderson, Henry, Knox, Lee and 6 more | 84 min |
| Aug 18, 4:04 PM CDT | Tornado Warning | LOT | Kane | 26 min |
| Aug 18, 4:09 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DeKalb, DuPage, Kane | 81 min |
| Aug 18, 4:17 PM CDT | Special Weather Statement | DVN | Rock Island | 43 min |
| Aug 18, 4:17 PM CDT | Areal Flood Advisory | LOT | DeKalb, Lee | 71 min |
| Aug 18, 4:21 PM CDT | Areal Flood Advisory | LOT | Kane | 3 hr |
| Aug 18, 4:28 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane, Kendall | 47 min |
| Aug 18, 4:29 PM CDT | Special Marine Warning | LOT | 2 hr | |
| Aug 18, 4:55 PM CDT | Special Weather Statement | DVN | Mercer, Rock Island | 35 min |
| Aug 18, 4:57 PM CDT | Areal Flood Advisory | LOT | Kane | 42 min |
| Aug 18, 4:58 PM CDT | Special Weather Statement | DVN | Jo Daviess | 47 min |
| Aug 18, 5:07 PM CDT | Areal Flood Advisory | LOT | DuPage | 32 min |
| Aug 18, 5:25 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 65 min |
| Aug 18, 5:26 PM CDT | Flash Flood Warning | LOT | DeKalb, Lee | 3 hr |
| Aug 18, 5:34 PM CDT | Special Weather Statement | DVN | Carroll, Stephenson | 56 min |
| Aug 18, 5:34 PM CDT | Mesoscale Discussion | SPC | Bureau, DuPage, Grundy, Henry, Iroquois, Kankakee and 12 more | 86 min |
| Aug 18, 5:37 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Kane, Kendall, Will | 4 hr |
| Aug 18, 5:47 PM CDT | Flash Flood Warning | LOT | DuPage | 3 hr |
| Aug 18, 5:50 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer, Warren | 70 min |
| Aug 18, 5:53 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson, Whiteside | 52 min |
| Aug 18, 5:56 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 49 min |
| Aug 18, 6:00 PM CDT | Severe Thunderstorm Warning | LOT | Ogle | 30 min |
| Aug 18, 6:01 PM CDT | Flash Flood Warning | LOT | DeKalb, Lee | 3 hr |
| Aug 18, 6:11 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Henry, Whiteside | 79 min |
| Aug 18, 6:17 PM CDT | Areal Flood Advisory | LOT | LaSalle | 3 hr |
| Aug 18, 6:20 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 55 min |
| Aug 18, 6:25 PM CDT | Special Weather Statement | LOT | Ogle | 20 min |
| Aug 18, 6:26 PM CDT | Special Weather Statement | ILX | Stark | 34 min |
| Aug 18, 6:30 PM CDT | Areal Flood Advisory | LOT | Cook, Will | 3 hr |
| Aug 18, 6:52 PM CDT | Flash Flood Warning | LOT | Boone, Winnebago | 3 hr |
| Aug 18, 7:02 PM CDT | Flash Flood Warning | LOT | Cook, Will | 70 min |
| Aug 18, 7:02 PM CDT | Special Weather Statement | LOT | Lee | 13 min |
| Aug 18, 7:07 PM CDT | Flash Flood Warning | LOT | LaSalle | 92 min |
| Aug 18, 7:07 PM CDT | Special Weather Statement | LOT | Will | 23 min |
| Aug 18, 7:12 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle, Lee | 33 min |
| Aug 18, 7:16 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 44 min |
| Aug 18, 7:20 PM CDT | Special Weather Statement | DVN | Putnam | 25 min |
| Aug 18, 7:30 PM CDT | Special Weather Statement | ILX | Fulton | 30 min |
| Aug 18, 7:37 PM CDT | Flash Flood Warning | LOT | McHenry | 3 hr |
| Aug 18, 7:38 PM CDT | Flash Flood Warning | LOT | LaSalle | 3 hr |
| Aug 18, 7:40 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox | 35 min |
| Aug 18, 7:45 PM CDT | Flash Flood Warning | LOT | DeKalb, Kendall, LaSalle, Will | 84 min |
| Aug 18, 7:52 PM CDT | Special Weather Statement | ILX | Marshall | 23 min |
| Aug 18, 7:53 PM CDT | Special Weather Statement | LOT | Kendall | 22 min |
| Aug 18, 8:11 PM CDT | Severe Thunderstorm Warning | LOT | Will | 19 min |
| Aug 18, 8:12 PM CDT | Flash Flood Warning | LOT | Cook, Will | 2 hr |
| Aug 18, 8:14 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria | 31 min |
| Aug 18, 8:24 PM CDT | Special Weather Statement | DVN | Henry | 36 min |
| Aug 18, 8:26 PM CDT | Flash Flood Warning | LOT | Cook | 3 hr |
| Aug 18, 8:32 PM CDT | Special Marine Warning | LOT | 88 min | |
| Aug 18, 8:35 PM CDT | Areal Flood Warning | LOT | DeKalb, Kane, Kendall, LaSalle, Lee | 14 hr |
| Aug 18, 8:38 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Peoria, Tazewell | 52 min |
| Aug 18, 8:48 PM CDT | Special Weather Statement | DVN | Bureau | 27 min |
| Aug 18, 8:56 PM CDT | Areal Flood Advisory | LOT | Kankakee, Will | 3 hr |
| Aug 18, 9:09 PM CDT | Areal Flood Warning | LOT | Kendall | 3 hr |
| Aug 18, 9:11 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Logan, McLean, Mason, Peoria, Tazewell and 1 more | 34 min |
| Aug 18, 9:20 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Kane, Will | 13 hr |
| Aug 18, 9:31 PM CDT | River Flood Warning | MKX | Lake | 6 days |
| Aug 18, 11:33 PM CDT | Areal Flood Warning | LOT | Cook | 13 hr |
| Aug 18, 11:43 PM CDT | Areal Flood Advisory | LOT | Kendall | 11 hr |
| Aug 18, 11:54 PM CDT | Special Weather Statement | LOT | Will | 21 min |
| Aug 19, 12:03 AM CDT | Flash Flood Warning | LOT | Cook, Will | 87 min |
| Aug 19, 12:04 AM CDT | Special Weather Statement | LOT | Will | 26 min |
| Aug 19, 12:05 AM CDT | Special Marine Warning | LOT | 115 min | |
| Aug 19, 12:15 AM CDT | Special Weather Statement | LOT | Will | 15 min |
| Aug 19, 12:30 AM CDT | Special Weather Statement | LOT | Will | 30 min |
| Aug 19, 2:07 AM CDT | Special Weather Statement | ILX | Logan | 23 min |
| Aug 19, 2:10 AM CDT | Heat Advisory | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 17 hr |
| Aug 19, 2:19 AM CDT | Special Weather Statement | ILX | Logan | 26 min |
| Aug 19, 2:31 AM CDT | Special Weather Statement | ILX | DeWitt | 29 min |
| Aug 19, 2:39 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon | 36 min |
| Aug 19, 3:14 AM CDT | Severe Thunderstorm Warning | ILX | Macon, Piatt | 31 min |
| Aug 19, 4:02 AM CDT | Small Craft Advisory | LOT | 51 hr | |
| Aug 19, 4:18 AM CDT | Beach Hazards Statement | LOT | Cook, Lake | 57 hr |
| Aug 19, 8:55 AM CDT | River Flood Warning | LOT | Will | 24 hr |
| Aug 19, 10:52 AM CDT | Areal Flood Advisory | LOT | DeKalb, LaSalle, Lee | 6 hr |
| Aug 19, 10:53 AM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Will | 6 hr |
| Aug 19, 1:55 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Union | 50 min |
| Aug 19, 2:48 PM CDT | Areal Flood Advisory | PAH | Hardin | 2 hr |
| Aug 19, 2:59 PM CDT | Severe Thunderstorm Warning | PAH | Hardin | 46 min |
| Aug 19, 3:06 PM CDT | River Flood Warning | LOT | DuPage, Will | 17 hr |
| Aug 19, 3:14 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pulaski, Union | 46 min |
| Aug 19, 3:53 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 52 min |
| Aug 20, 2:59 AM CDT | Small Craft Advisory | LOT | 28 hr | |
| Aug 23, 2:47 PM CDT | Small Craft Advisory | LOT | 55 hr | |
| Aug 26, 3:46 AM CDT | Small Craft Advisory | LOT | 15 hr | |
| Aug 27, 2:38 PM CDT | Small Craft Advisory | LOT | 43 hr | |
| Aug 27, 2:44 PM CDT | Beach Hazards Statement | LOT | Cook, Lake | 47 hr |
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 | 55 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 84 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 32 |
| River Flood Warning | 4 |
| Flood Watch | 6 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 50 |
| Heat | |
| Heat Advisory | 9 |
| Wind and dust | |
| Dust Storm Advisory | 1 |
| Coast and beach | |
| Beach Hazards Statement | 3 |
| Marine | |
| Special Marine Warning | 17 |
| Small Craft Advisory | 7 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Will County57
- Cook County52
- DuPage County37
- DeKalb County31
- Kane County29
- Kendall County29
- Lee County24
- LaSalle County22
- Lake County21
- McHenry County19
- Kankakee County19
- Henry County18
- Whiteside County18
- Bureau County17
- Carroll County17
- Rock Island County17
- Boone County17
- Ogle County16
- Winnebago County16
- Mercer County15
- Jo Daviess County15
- Stephenson County15
- Vermilion County15
- Putnam County14
- Grundy County14
- Livingston County14
- Warren County13
- Hancock County10
- Henderson County10
- Knox County10
- Ford County10
- Iroquois County10
- McDonough County9
- Adams County8
- Marshall County8
- Peoria County8
- Stark County8
- Fulton County7
- Macon County7
- Logan County7
62 more counties
- Woodford County6
- Champaign County6
- Tazewell County5
- Madison County5
- Wayne County4
- Hamilton County4
- Crawford County4
- Lawrence County4
- Johnson County4
- Piatt County4
- Saint Clair County4
- Jasper County3
- Richland County3
- Christian County3
- Shelby County3
- Mason County3
- Effingham County3
- DeWitt County3
- Edgar County3
- McLean County3
- Hardin County3
- Massac County3
- Union County3
- Edwards County2
- Clark County2
- Saline County2
- Brown County2
- Schuyler County2
- Bond County2
- Coles County2
- Cumberland County2
- Douglas County2
- Fayette County2
- Montgomery County2
- Moultrie County2
- Clay County2
- Alexander County2
- Pope County2
- Pulaski County2
- Calhoun County1
- Clinton County1
- Greene County1
- Jersey County1
- Macoupin County1
- Marion County1
- Monroe County1
- Pike County1
- Randolph County1
- Washington County1
- Cass County1
- Menard County1
- Morgan County1
- Sangamon County1
- Scott County1
- Franklin County1
- Gallatin County1
- Jackson County1
- Jefferson County1
- Perry County1
- Wabash County1
- White County1
- Williamson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.