Alert archive / Illinois / 2023
Weather alerts in Illinois, October 2023
50 weather alerts in October 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 October 2023. Tap one for its archive.
- Alerts
- 50
- Warnings
- 16
- Watches
- 4
- Advisories
- 22
- Busiest day
- October 29, 20236 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 |
|---|---|---|---|---|
| Oct 4, 8:16 PM CDT | Special Weather Statement | DVN | Henry | 44 min |
| Oct 5, 3:21 PM CDT | Small Craft Advisory | LOT | 3 days | |
| Oct 5, 9:00 PM CDT | Dense Fog Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 10 hr |
| Oct 6, 1:13 PM CDT | Special Weather Statement | DVN | Carroll, Jo Daviess | 47 min |
| Oct 6, 3:55 PM CDT | Special Weather Statement | LOT | Lee | 35 min |
| Oct 6, 4:19 PM CDT | Special Weather Statement | LOT | Lee | 26 min |
| Oct 8, 1:47 PM CDT | Frost Advisory | LOT | Boone, DeKalb, Kane, Lake, McHenry, Ogle and 1 more | 19 hr |
| Oct 8, 1:52 PM CDT | Frost Advisory | DVN | Carroll, Jo Daviess, Stephenson | 19 hr |
| Oct 8, 3:44 PM CDT | Small Craft Advisory | LOT | 36 hr | |
| Oct 9, 1:52 PM CDT | Frost Advisory | DVN | Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more | 19 hr |
| Oct 9, 2:04 PM CDT | Frost Advisory | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 11 more | 18 hr |
| Oct 9, 2:17 PM CDT | Frost Advisory | ILX | Champaign, Clark, Coles, DeWitt, Douglas, Edgar and 15 more | 18 hr |
| Oct 10, 2:18 PM CDT | Frost Advisory | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 11 more | 18 hr |
| Oct 10, 2:57 PM CDT | Frost Advisory | DVN | Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more | 18 hr |
| Oct 11, 3:32 PM CDT | Small Craft Advisory | LOT | 66 hr | |
| Oct 11, 6:16 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island, Whiteside | 44 min |
| Oct 11, 8:41 PM CDT | Special Weather Statement | DVN | Henry, Rock Island, Whiteside | 64 min |
| Oct 11, 11:15 PM CDT | Special Weather Statement | DVN | Rock Island | 45 min |
| Oct 12, 3:04 PM CDT | Gale Watch | LOT | 13 hr | |
| Oct 13, 4:08 AM CDT | Gale Warning | LOT | 39 hr | |
| Oct 13, 5:19 PM CDT | Mesoscale Discussion | SPC | Brown, Calhoun, Cass, Greene, Hancock, Henderson and 5 more | 86 min |
| Oct 14, 7:04 PM CDT | Small Craft Advisory | LOT | 57 hr | |
| Oct 17, 3:18 PM CDT | Small Craft Advisory | LOT | 34 hr | |
| Oct 19, 3:42 PM CDT | Small Craft Advisory | LOT | 33 hr | |
| Oct 20, 3:54 PM CDT | Small Craft Advisory | LOT | 47 hr | |
| Oct 21, 3:05 AM CDT | Red Flag Warning | LSX | Bond, Clinton, Madison, Marion, Monroe, Randolph and 2 more | 16 hr |
| Oct 21, 5:53 PM CDT | Special Marine Warning | LOT | 82 min | |
| Oct 21, 7:13 PM CDT | Special Marine Warning | LOT | 82 min | |
| Oct 23, 3:04 PM CDT | Small Craft Advisory | LOT | 6 hr | |
| Oct 23, 9:06 PM CDT | Small Craft Advisory | LOT | 41 hr | |
| Oct 26, 9:43 AM CDT | Small Craft Advisory | LOT | 5 hr | |
| Oct 27, 2:44 AM CDT | Freeze Warning | DVN | Carroll, Jo Daviess, Stephenson | 29 hr |
| Oct 27, 3:45 AM CDT | Small Craft Advisory | LOT | 42 hr | |
| Oct 27, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 39 min |
| Oct 27, 4:16 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Coles, Cumberland, Effingham and 19 more | 89 min |
| Oct 28, 2:16 PM CDT | Freeze Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 44 hr |
| Oct 29, 2:38 AM CDT | Freeze Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 31 hr |
| Oct 29, 3:02 AM CDT | Freeze Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 23 hr |
| Oct 29, 3:04 AM CDT | Freeze Watch | ILX | Clark, Clay, Crawford, Jasper, Lawrence, Richland | 23 hr |
| Oct 29, 3:04 AM CDT | Freeze Warning | ILX | Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 23 more | 29 hr |
| Oct 29, 3:24 AM CDT | Freeze Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 30 hr |
| Oct 29, 3:48 AM CDT | Small Craft Advisory | LOT | 36 hr | |
| Oct 29, 9:16 PM CDT | Gale Watch | LOT | 17 hr | |
| Oct 30, 2:23 AM CDT | Freeze Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 31 hr |
| Oct 30, 2:27 AM CDT | Freeze Warning | ILX | Champaign, Christian, Clark, Clay, Coles, Crawford and 12 more | 31 hr |
| Oct 30, 8:34 AM CDT | Freeze Warning | LOT | Cook, Ford, Iroquois, Kankakee, Will | 24 hr |
| Oct 30, 9:57 AM CDT | Freeze Warning | LSX | Bond, Clinton, Fayette, Madison, Marion, Monroe and 4 more | 24 hr |
| Oct 30, 2:37 PM CDT | Gale Warning | LOT | 33 hr | |
| Oct 31, 10:34 AM CDT | Wind Advisory | DVN | Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more | 6 hr |
| Oct 31, 2:45 PM CDT | Winter Weather Advisory | LOT | Cook, Lake | 14 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 | 2 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 6 |
| Winter | |
| Winter Weather Advisory | 1 |
| Cold | |
| Freeze Warning | 9 |
| Freeze Watch | 2 |
| Frost Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Marine | |
| Gale Warning | 2 |
| Special Marine Warning | 2 |
| Gale Watch | 2 |
| Small Craft Advisory | 12 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carroll County7
- Jo Daviess County7
- Rock Island County7
- Henry County6
- Stephenson County6
- Whiteside County6
- Lee County5
- Cook County5
- Franklin County4
- Hamilton County4
- Jackson County4
- Jefferson County4
- Perry County4
- Union County4
- Wayne County4
- Williamson County4
- Boone County4
- DeKalb County4
- Kane County4
- McHenry County4
- Ogle County4
- Winnebago County4
- Bureau County4
- Putnam County4
- Ford County4
- Iroquois County4
- Kankakee County4
- Will County4
- Coles County4
- Bond County4
- Clinton County4
- Madison County4
- Marion County4
- Monroe County4
- Randolph County4
- Saint Clair County4
- Washington County4
- Alexander County3
- Edwards County3
- Gallatin County3
62 more counties
- Hardin County3
- Johnson County3
- Massac County3
- Pope County3
- Pulaski County3
- Saline County3
- Wabash County3
- White County3
- Lake County3
- Henderson County3
- Warren County3
- DuPage County3
- Grundy County3
- Kendall County3
- LaSalle County3
- Livingston County3
- Champaign County3
- Clark County3
- Douglas County3
- Edgar County3
- Macon County3
- Moultrie County3
- Piatt County3
- Vermilion County3
- Calhoun County3
- Clay County3
- Cumberland County3
- Effingham County3
- Fayette County3
- Jasper County3
- Montgomery County3
- Richland County3
- Shelby County3
- Mercer County2
- DeWitt County2
- Fulton County2
- Knox County2
- Logan County2
- McLean County2
- Marshall County2
- Mason County2
- Menard County2
- Peoria County2
- Stark County2
- Tazewell County2
- Woodford County2
- Brown County2
- Cass County2
- Greene County2
- Hancock County2
- McDonough County2
- Pike County2
- Schuyler County2
- Scott County2
- Jersey County2
- Crawford County2
- Lawrence County2
- Christian County2
- Adams County1
- Macoupin County1
- Morgan County1
- Sangamon 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. Warning verification from the Mesonet's Cow. Rebuilt daily.