Weather alerts in Illinois, 2024
3,229 weather alerts in 2024, 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 2024. Tap one for its archive.
- Alerts
- 3,229
- Warnings
- 1,556
- Watches
- 222
- Advisories
- 535
- Busiest month
- May701 alerts
- Busiest day
- March 14, 2024131 alerts
Over time
By month
The alerts
3,229 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rock Island County215
- Whiteside County203
- Cook County202
- Henry County186
- Winnebago County182
- LaSalle County177
- Carroll County175
- Hancock County172
- Henderson County169
- Mercer County169
- Will County168
- Ogle County166
- Stephenson County164
- Jo Daviess County161
- Bureau County160
- Lee County156
- McHenry County155
- Lake County153
- Fulton County151
- DeKalb County151
- Boone County149
- Warren County145
- Knox County145
- DuPage County145
- Kane County145
- Jackson County145
- Kendall County142
- Pope County142
- Putnam County141
- Tazewell County141
- White County141
- Gallatin County139
- Alexander County138
- McDonough County137
- Monroe County137
- Union County137
- Peoria County135
- Madison County133
- Massac County132
- Saint Clair County131
62 more counties
- Williamson County130
- Pulaski County129
- Grundy County128
- Franklin County128
- Jefferson County128
- Johnson County128
- Mason County126
- Wayne County125
- Saline County123
- Logan County122
- Perry County121
- Marshall County120
- Wabash County120
- Stark County119
- Macon County118
- Calhoun County118
- McLean County117
- Hardin County117
- Christian County116
- Woodford County115
- Sangamon County115
- Hamilton County114
- Lawrence County113
- Kankakee County112
- Randolph County112
- Richland County112
- Clay County111
- Edwards County110
- Pike County109
- Coles County109
- Vermilion County107
- Livingston County107
- Shelby County107
- Champaign County106
- Iroquois County105
- Crawford County105
- Edgar County105
- Washington County104
- Morgan County103
- Clinton County103
- Clark County103
- Jasper County103
- Adams County102
- Piatt County102
- Greene County102
- Fayette County101
- Schuyler County100
- Cass County99
- DeWitt County98
- Jersey County98
- Macoupin County98
- Bond County98
- Cumberland County97
- Menard County96
- Montgomery County95
- Moultrie County95
- Marion County94
- Effingham County94
- Ford County93
- Douglas County92
- Scott County89
- Brown County88
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.