Weather alerts in Illinois, 2019
3,963 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 3,963
- Warnings
- 1,689
- Watches
- 270
- Advisories
- 912
- Busiest month
- May776 alerts
- Busiest day
- May 23, 201997 alerts
Over time
By month
The alerts
3,963 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.
- LaSalle County241
- Rock Island County233
- Hancock County231
- Winnebago County230
- Lake County216
- Henry County211
- Whiteside County208
- Kane County204
- Henderson County202
- Lee County188
- Jo Daviess County187
- Bureau County185
- Mercer County185
- McDonough County184
- Kendall County181
- Stephenson County180
- Wabash County179
- Ogle County178
- Fulton County175
- Cook County175
- Madison County174
- Pike County174
- Warren County174
- DeKalb County168
- Tazewell County168
- Alexander County167
- Putnam County167
- Adams County165
- McHenry County164
- Carroll County164
- White County162
- Peoria County162
- Saint Clair County162
- Will County162
- Wayne County159
- Jackson County158
- Crawford County155
- DuPage County153
- Mason County153
- Calhoun County152
62 more counties
- Woodford County152
- Boone County151
- Grundy County151
- Knox County151
- Union County150
- Lawrence County150
- Brown County150
- Pope County147
- Schuyler County147
- Clinton County147
- Clark County146
- Fayette County145
- Edwards County145
- Iroquois County144
- Marshall County143
- Bond County143
- Gallatin County141
- Marion County141
- Massac County140
- Kankakee County140
- Stark County140
- Jefferson County140
- Clay County139
- Richland County139
- Hardin County138
- Cass County138
- Pulaski County137
- Monroe County135
- Franklin County134
- Livingston County133
- Jersey County132
- Morgan County132
- Jasper County131
- McLean County131
- Vermilion County129
- Hamilton County129
- Williamson County129
- Coles County128
- Edgar County127
- Logan County127
- Champaign County125
- Sangamon County125
- Menard County124
- Johnson County124
- Greene County123
- Montgomery County123
- Washington County123
- Perry County123
- Christian County122
- Randolph County121
- Effingham County121
- Macon County121
- Shelby County121
- Moultrie County120
- Macoupin County120
- Ford County118
- DeWitt County118
- Douglas County118
- Piatt County117
- Scott County116
- Cumberland County116
- Saline County115
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.