Alert archive / Illinois / 2023
Weather alerts in Illinois, September 2023
132 weather alerts in September 2023, 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 September 2023. Tap one for its archive.
- Alerts
- 132
- Warnings
- 38
- Watches
- 0
- Advisories
- 30
- Busiest day
- September 27, 202326 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 |
|---|---|---|---|---|
| Sep 4, 6:53 PM CDT | Special Weather Statement | PAH | Alexander, Jackson | 52 min |
| Sep 4, 7:34 PM CDT | Special Weather Statement | ILX | Morgan, Scott | 56 min |
| Sep 5, 3:59 PM CDT | Special Weather Statement | PAH | Massac | 46 min |
| Sep 5, 4:34 PM CDT | Special Weather Statement | PAH | Massac, Pope | 41 min |
| Sep 6, 3:55 AM CDT | Special Weather Statement | ILX | Champaign | 35 min |
| Sep 6, 4:12 AM CDT | Special Weather Statement | ILX | DeWitt, McLean, Piatt | 33 min |
| Sep 6, 4:12 AM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane, Kendall, Will | 31 min |
| Sep 6, 4:34 AM CDT | Special Marine Warning | LOT | 116 min | |
| Sep 6, 5:55 AM CDT | Areal Flood Advisory | LOT | Cook, Kankakee, Will | 3 hr |
| Sep 6, 6:17 AM CDT | Flash Flood Warning | LOT | Cook, Will | 3 hr |
| Sep 6, 6:42 AM CDT | Flash Flood Warning | LOT | Kankakee | 3 hr |
| Sep 6, 2:56 PM CDT | Small Craft Advisory | LOT | 52 hr | |
| Sep 6, 3:27 PM CDT | Beach Hazards Statement | LOT | Cook, Lake | 58 hr |
| Sep 11, 3:20 PM CDT | Small Craft Advisory | LOT | 31 hr | |
| Sep 11, 3:21 PM CDT | Beach Hazards Statement | LOT | Cook, Lake | 37 hr |
| Sep 12, 2:05 AM CDT | Dense Fog Advisory | DVN | Hancock, Henderson, McDonough, Warren | 6 hr |
| Sep 12, 2:26 AM CDT | Dense Fog Advisory | ILX | Cass, Fulton, Knox, Marshall, Mason, Peoria and 4 more | 6 hr |
| Sep 12, 2:31 AM CDT | Dense Fog Advisory | LSX | Adams, Brown | 6 hr |
| Sep 12, 4:37 PM CDT | Special Weather Statement | DVN | Rock Island, Whiteside | 23 min |
| Sep 13, 3:38 AM CDT | Special Marine Warning | LOT | 37 min | |
| Sep 13, 7:26 AM CDT | Special Marine Warning | LOT | 46 min | |
| Sep 13, 9:36 AM CDT | Special Marine Warning | LOT | 24 min | |
| Sep 13, 10:18 AM CDT | Special Marine Warning | LOT | 57 min | |
| Sep 13, 11:10 AM CDT | Special Marine Warning | LOT | 65 min | |
| Sep 13, 11:19 AM CDT | Special Marine Warning | LOT | 56 min | |
| Sep 13, 12:15 PM CDT | Special Marine Warning | LOT | 60 min | |
| Sep 16, 4:21 PM CDT | Special Weather Statement | DVN | Hancock | 39 min |
| Sep 16, 4:44 PM CDT | Special Weather Statement | DVN | Whiteside | 46 min |
| Sep 16, 4:54 PM CDT | Special Weather Statement | DVN | Henderson, McDonough, Warren | 66 min |
| Sep 16, 5:09 PM CDT | Special Weather Statement | ILX | Schuyler | 36 min |
| Sep 16, 5:18 PM CDT | Special Weather Statement | DVN | Rock Island | 57 min |
| Sep 16, 5:27 PM CDT | Special Weather Statement | DVN | Warren | 48 min |
| Sep 16, 5:38 PM CDT | Special Weather Statement | ILX | Cass, Fulton, Knox, Morgan, Schuyler | 37 min |
| Sep 16, 5:44 PM CDT | Special Weather Statement | DVN | Rock Island | 31 min |
| Sep 16, 6:12 PM CDT | Special Weather Statement | DVN | Bureau | 48 min |
| Sep 16, 6:13 PM CDT | Special Weather Statement | ILX | Cass, Fulton, Knox, Mason, Menard, Morgan and 1 more | 32 min |
| Sep 16, 6:36 PM CDT | Special Weather Statement | DVN | Henry | 24 min |
| Sep 16, 6:52 PM CDT | Special Weather Statement | ILX | Stark | 23 min |
| Sep 16, 7:16 PM CDT | Areal Flood Advisory | LOT | Lee | 3 hr |
| Sep 16, 7:17 PM CDT | Special Weather Statement | ILX | Stark | 28 min |
| Sep 16, 7:46 PM CDT | Special Weather Statement | DVN | Stephenson | 44 min |
| Sep 16, 8:29 PM CDT | Areal Flood Advisory | LOT | Winnebago | 3 hr |
| Sep 16, 8:46 PM CDT | Flash Flood Warning | LOT | Winnebago | 62 min |
| Sep 17, 3:54 AM CDT | Small Craft Advisory | LOT | 29 hr | |
| Sep 17, 3:55 AM CDT | Beach Hazards Statement | LOT | Cook, Lake | 29 hr |
| Sep 17, 6:02 AM CDT | Areal Flood Advisory | LOT | Cook | 3 hr |
| Sep 17, 7:26 AM CDT | Flash Flood Warning | LOT | Cook, DuPage | 5 hr |
| Sep 17, 7:30 AM CDT | Special Marine Warning | LOT | 90 min | |
| Sep 17, 8:11 AM CDT | Special Marine Warning | LOT | 49 min | |
| Sep 17, 8:53 AM CDT | Special Marine Warning | LOT | 2 hr | |
| Sep 17, 10:07 AM CDT | Flash Flood Warning | LOT | Cook | 7 hr |
| Sep 17, 10:50 AM CDT | Flash Flood Warning | LOT | Cook | 3 hr |
| Sep 17, 12:35 PM CDT | Special Marine Warning | LOT | 115 min | |
| Sep 17, 4:57 PM CDT | Areal Flood Warning | LOT | Cook | 16 hr |
| Sep 18, 8:57 AM CDT | Areal Flood Advisory | LOT | Cook | 2 hr |
| Sep 20, 5:39 AM CDT | Areal Flood Advisory | LOT | Boone, DeKalb, Kane, McHenry | 5 hr |
| Sep 21, 5:37 PM CDT | Areal Flood Advisory | ILX | DeWitt | 3 hr |
| Sep 21, 7:02 PM CDT | Areal Flood Advisory | ILX | DeWitt | 3 hr |
| Sep 21, 9:01 PM CDT | Areal Flood Advisory | ILX | Logan | 36 min |
| Sep 21, 9:37 PM CDT | Flash Flood Warning | ILX | Logan | 3 hr |
| Sep 22, 12:54 AM CDT | Areal Flood Advisory | ILX | DeWitt, Logan, Macon | 9 hr |
| Sep 22, 4:39 AM CDT | Areal Flood Advisory | LOT | LaSalle, Livingston | 4 hr |
| Sep 23, 2:43 PM CDT | Small Craft Advisory | LOT | 18 hr | |
| Sep 23, 10:34 PM CDT | Beach Hazards Statement | LOT | Cook, Lake | 14 hr |
| Sep 24, 7:40 PM CDT | Special Weather Statement | DVN | Rock Island | 50 min |
| Sep 24, 8:36 PM CDT | Special Weather Statement | DVN | Rock Island | 39 min |
| Sep 24, 9:10 PM CDT | Special Weather Statement | DVN | Henry | 50 min |
| Sep 24, 9:16 PM CDT | Special Weather Statement | ILX | Knox | 29 min |
| Sep 24, 9:22 PM CDT | Special Weather Statement | ILX | Mason | 23 min |
| Sep 25, 3:05 AM CDT | Areal Flood Advisory | ILX | Tazewell | 2 hr |
| Sep 25, 9:07 AM CDT | Dense Fog Advisory | DVN | Henry, Mercer, Rock Island | 2 hr |
| Sep 25, 2:56 PM CDT | Special Weather Statement | DVN | Putnam | 49 min |
| Sep 25, 4:09 PM CDT | Special Weather Statement | DVN | Stephenson | 51 min |
| Sep 25, 4:48 PM CDT | Special Weather Statement | DVN | Stephenson | 42 min |
| Sep 25, 5:22 PM CDT | Special Weather Statement | DVN | Carroll | 38 min |
| Sep 26, 9:42 AM CDT | Areal Flood Advisory | LOT | Cook | 109 min |
| Sep 26, 9:43 AM CDT | Beach Hazards Statement | LOT | Cook, Lake | 36 hr |
| Sep 26, 1:20 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Ford and 25 more | 85 min |
| Sep 26, 2:02 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Clay, Coles, Crawford and 23 more | 88 min |
| Sep 26, 3:09 PM CDT | Special Weather Statement | DVN | Jo Daviess | 36 min |
| Sep 26, 3:27 PM CDT | Small Craft Advisory | LOT | 31 hr | |
| Sep 26, 3:51 PM CDT | Special Weather Statement | DVN | Jo Daviess | 39 min |
| Sep 26, 3:52 PM CDT | Special Weather Statement | DVN | Rock Island | 53 min |
| Sep 26, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 40 min |
| Sep 26, 4:38 PM CDT | Severe Thunderstorm Warning | ILX | Morgan | 22 min |
| Sep 26, 4:57 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 33 min |
| Sep 26, 5:02 PM CDT | Special Weather Statement | DVN | Rock Island | 58 min |
| Sep 26, 5:05 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island | 40 min |
| Sep 26, 5:38 PM CDT | Special Weather Statement | ILX | Sangamon | 52 min |
| Sep 26, 5:53 PM CDT | Special Weather Statement | LOT | Will | 37 min |
| Sep 26, 5:56 PM CDT | Special Weather Statement | LOT | Kankakee | 34 min |
| Sep 26, 6:13 PM CDT | Special Weather Statement | LOT | Ogle | 47 min |
| Sep 26, 6:16 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 44 min |
| Sep 26, 6:40 PM CDT | Special Weather Statement | ILX | Christian | 20 min |
| Sep 26, 6:43 PM CDT | Special Weather Statement | ILX | Sangamon | 17 min |
| Sep 26, 6:53 PM CDT | Severe Thunderstorm Warning | ILX | Christian | 37 min |
| Sep 26, 6:53 PM CDT | Special Weather Statement | LOT | DeKalb, Ogle | 52 min |
| Sep 26, 7:05 PM CDT | Special Weather Statement | ILX | Knox, Stark | 25 min |
| Sep 26, 7:12 PM CDT | Special Weather Statement | ILX | Christian | 18 min |
| Sep 26, 7:37 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Sep 26, 7:45 PM CDT | Areal Flood Advisory | LOT | Lee, Ogle | 4 hr |
| Sep 26, 8:11 PM CDT | Special Weather Statement | ILX | Sangamon | 19 min |
| Sep 26, 8:26 PM CDT | Special Weather Statement | DVN | Jo Daviess | 49 min |
| Sep 26, 8:29 PM CDT | Special Weather Statement | ILX | Sangamon | 16 min |
| Sep 26, 8:51 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 19 min |
| Sep 26, 9:02 PM CDT | Special Weather Statement | ILX | Christian | 13 min |
| Sep 26, 9:03 PM CDT | Special Weather Statement | ILX | Morgan | 27 min |
| Sep 26, 9:23 PM CDT | Special Weather Statement | ILX | Sangamon | 22 min |
| Sep 26, 9:29 PM CDT | Special Weather Statement | DVN | Jo Daviess | 46 min |
| Sep 26, 9:42 PM CDT | Special Weather Statement | ILX | Sangamon | 18 min |
| Sep 26, 9:58 PM CDT | Special Weather Statement | PAH | Perry | 32 min |
| Sep 26, 10:15 PM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess | 3 hr |
| Sep 26, 10:35 PM CDT | Special Weather Statement | ILX | Tazewell | 25 min |
| Sep 26, 10:49 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 41 min |
| Sep 26, 11:43 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 32 min |
| Sep 26, 11:45 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 30 min |
| Sep 26, 11:47 PM CDT | Areal Flood Advisory | LOT | DeKalb, LaSalle, Lee, Ogle | 5 hr |
| Sep 27, 12:13 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 15 min |
| Sep 27, 12:31 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 20 min |
| Sep 27, 3:07 AM CDT | Special Weather Statement | DVN | Bureau | 68 min |
| Sep 27, 4:05 AM CDT | Flash Flood Warning | DVN | Bureau | 6 hr |
| Sep 27, 6:43 PM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 10 more | 2 hr |
| Sep 27, 6:54 PM CDT | Special Weather Statement | PAH | Jackson | 51 min |
| Sep 27, 7:27 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jackson, Perry, Williamson | 48 min |
| Sep 27, 8:25 PM CDT | Severe Thunderstorm Warning | PAH | Hardin, Pope | 50 min |
| Sep 27, 9:10 PM CDT | Special Weather Statement | PAH | Hardin | 35 min |
| Sep 28, 3:21 AM CDT | Dense Fog Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 22 more | 6 hr |
| Sep 28, 3:59 AM CDT | Dense Fog Advisory | DVN | Hancock, Henderson, McDonough, Warren | 6 hr |
| Sep 28, 10:44 PM CDT | Dense Fog Advisory | ILX | Champaign, Clark, Coles, DeWitt, Douglas, Edgar and 7 more | 10 hr |
| Sep 29, 1:23 AM CDT | Dense Fog Advisory | DVN | Bureau, Putnam, Stephenson | 8 hr |
| Sep 29, 1:34 AM CDT | Dense Fog Advisory | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 11 more | 7 hr |
| Sep 30, 1:58 AM CDT | Dense Fog Advisory | PAH | Massac, Pope | 7 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 | 15 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 56 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 10 |
| Areal Flood Advisory | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Coast and beach | |
| Beach Hazards Statement | 5 |
| Marine | |
| Special Marine Warning | 12 |
| Small Craft Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cook County15
- Rock Island County10
- Christian County8
- Sangamon County8
- Morgan County7
- DeWitt County7
- Jo Daviess County7
- Ogle County7
- Will County6
- Knox County6
- Lee County6
- Kankakee County5
- Lake County5
- Stark County5
- Tazewell County5
- Bureau County5
- Henry County5
- Stephenson County5
- DeKalb County5
- Pope County4
- Champaign County4
- Piatt County4
- DuPage County4
- Kane County4
- Warren County4
- Cass County4
- Fulton County4
- Mason County4
- Schuyler County4
- Winnebago County4
- Logan County4
- Macon County4
- LaSalle County4
- Shelby County4
- Jackson County3
- Scott County3
- Massac County3
- McLean County3
- Kendall County3
- Hancock County3
50 more counties
- Henderson County3
- McDonough County3
- Marshall County3
- Peoria County3
- Woodford County3
- Whiteside County3
- Boone County3
- Livingston County3
- Putnam County3
- Carroll County3
- Ford County3
- Iroquois County3
- Clark County3
- Coles County3
- Douglas County3
- Edgar County3
- Lawrence County3
- Moultrie County3
- Richland County3
- Vermilion County3
- Perry County3
- Hardin County3
- Adams County2
- Brown County2
- Menard County2
- McHenry County2
- Mercer County2
- Grundy County2
- Clay County2
- Crawford County2
- Cumberland County2
- Edwards County2
- Effingham County2
- Jasper County2
- Marion County2
- Montgomery County2
- Wabash County2
- Wayne County2
- White County2
- Franklin County2
- Williamson County2
- Alexander County1
- Fayette County1
- Calhoun County1
- Monroe County1
- Saint Clair County1
- Gallatin County1
- Hamilton County1
- Jefferson County1
- Saline County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.