Weather alerts in Illinois, 2007
1,517 weather alerts in 2007, 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 2007. Tap one for its archive.
- Alerts
- 1,517
- Warnings
- 892
- Watches
- 151
- Advisories
- 278
- Busiest month
- August342 alerts
- Busiest day
- August 23, 200786 alerts
Over time
By month
The alerts
1,517 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.
- Kane County155
- Ogle County154
- DeKalb County153
- Rock Island County150
- Winnebago County144
- Lee County143
- Whiteside County141
- Carroll County137
- Jo Daviess County135
- LaSalle County134
- Stephenson County133
- Henry County132
- Boone County132
- Knox County131
- Tazewell County130
- Grundy County129
- McLean County128
- Kendall County128
- Kankakee County127
- Adams County127
- Fulton County127
- Mercer County127
- Henderson County126
- Madison County126
- McHenry County125
- Peoria County124
- Schuyler County124
- Champaign County124
- Stark County123
- DuPage County123
- McDonough County122
- Mason County122
- Woodford County122
- Pike County121
- Logan County120
- Marshall County119
- Bureau County119
- Ford County118
- Macon County118
- Piatt County118
62 more counties
- Warren County117
- Cass County117
- Morgan County117
- Iroquois County116
- Sangamon County115
- Douglas County115
- Brown County114
- Putnam County114
- Christian County114
- DeWitt County114
- Hancock County113
- Macoupin County113
- Livingston County113
- Vermilion County112
- Calhoun County112
- Moultrie County112
- Coles County112
- Menard County110
- Jersey County109
- Scott County109
- Lake County109
- Montgomery County107
- Bond County106
- Shelby County104
- Greene County103
- Saint Clair County103
- Edgar County102
- Fayette County98
- Wabash County94
- Crawford County93
- Clinton County92
- Clark County92
- Cumberland County92
- Wayne County90
- Lawrence County89
- Pope County87
- Monroe County87
- Cook County86
- Marion County86
- Jasper County85
- Johnson County84
- Will County83
- Jefferson County83
- Massac County83
- Pulaski County83
- Washington County83
- Effingham County83
- Edwards County82
- Jackson County82
- Union County82
- Randolph County82
- Perry County81
- Hardin County80
- Clay County80
- White County79
- Alexander County78
- Franklin County78
- Gallatin County78
- Hamilton County77
- Richland County76
- Williamson County75
- Saline County74
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.