Alert archive / Illinois / Freeze Warnings / 2021
Freeze Warnings in Illinois, April 2021
12 freeze warnings in April 2021. 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in April 2021. Tap one for its archive.
- Freeze Warnings
- 12
- Busiest day
- April 19, 20215 freeze 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 |
|---|---|---|---|---|
| Apr 2, 2:15 PM CDT | Freeze Warning | PAH | Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more | 19 hr |
| Apr 2, 2:24 PM CDT | Freeze Warning | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 18 hr |
| Apr 19, 1:01 PM CDT | Freeze Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 23 hr |
| Apr 19, 2:07 PM CDT | Freeze Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 43 hr |
| Apr 19, 2:27 PM CDT | Freeze Warning | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 43 hr |
| Apr 19, 2:58 PM CDT | Freeze Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 42 hr |
| Apr 19, 3:25 PM CDT | Freeze Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 42 hr |
| Apr 19, 11:02 PM CDT | Freeze Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 34 hr |
| Apr 21, 2:58 AM CDT | Freeze Warning | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 29 hr |
| Apr 21, 3:07 AM CDT | Freeze Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 30 hr |
| Apr 21, 3:08 AM CDT | Freeze Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 30 hr |
| Apr 21, 3:22 AM CDT | Freeze Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clay County3
- Crawford County3
- Effingham County3
- Jasper County3
- Lawrence County3
- Richland County3
- Adams County3
- Bond County3
- Brown County3
- Calhoun County3
- Clinton County3
- Fayette County3
- Greene County3
- Jersey County3
- Macoupin County3
- Madison County3
- Marion County3
- Monroe County3
- Montgomery County3
- Pike County3
- Randolph County3
- Saint Clair County3
- Washington County3
- Edwards County2
- Gallatin County2
- Hamilton County2
- Hardin County2
- Pope County2
- Saline County2
- Wabash County2
- Wayne County2
- White County2
- Bureau County2
- Carroll County2
- Hancock County2
- Henderson County2
- Henry County2
- Jo Daviess County2
- McDonough County2
- Mercer County2
62 more counties
- Putnam County2
- Rock Island County2
- Stephenson County2
- Warren County2
- Whiteside County2
- Cass County2
- Champaign County2
- Christian County2
- Clark County2
- Coles County2
- Cumberland County2
- DeWitt County2
- Douglas County2
- Edgar County2
- Fulton County2
- Knox County2
- Logan County2
- McLean County2
- Macon County2
- Marshall County2
- Mason County2
- Menard County2
- Morgan County2
- Moultrie County2
- Peoria County2
- Piatt County2
- Sangamon County2
- Schuyler County2
- Scott County2
- Shelby County2
- Stark County2
- Tazewell County2
- Vermilion County2
- Woodford County2
- Boone County2
- Cook County2
- DeKalb County2
- DuPage County2
- Ford County2
- Grundy County2
- Iroquois County2
- Kane County2
- Kankakee County2
- Kendall County2
- Lake County2
- LaSalle County2
- Lee County2
- Livingston County2
- McHenry County2
- Ogle County2
- Will County2
- Winnebago County2
- Alexander County1
- Franklin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry County1
- Pulaski County1
- Union County1
- Williamson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.