Alert archive / Illinois / 2011
Weather alerts in Illinois, September 2011
84 weather alerts in September 2011, 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 September 2011. Tap one for its archive.
- Alerts
- 84
- Warnings
- 22
- Watches
- 7
- Advisories
- 37
- Busiest day
- September 3, 201129 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 |
|---|---|---|---|---|
| Sep 1, 10:40 AM CDT | Heat Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 32 hr |
| Sep 2, 3:42 AM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 14 hr |
| Sep 2, 4:02 AM CDT | Heat Advisory | LOT | Ford, Iroquois, Kankakee, Livingston | 15 hr |
| Sep 2, 2:41 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Henry, Jo Daviess, Lee, Ogle and 4 more | 94 min |
| Sep 2, 11:56 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Ogle, Stephenson, Whiteside, Winnebago | 94 min |
| Sep 3, 12:48 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Jo Daviess, McHenry, Stephenson, Winnebago | 6 hr |
| Sep 3, 11:57 AM CDT | Special Weather Statement | DVN | Whiteside | 33 min |
| Sep 3, 12:24 PM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Ford, Grundy and 13 more | 66 min |
| Sep 3, 2:04 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 56 min |
| Sep 3, 2:17 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 43 min |
| Sep 3, 2:32 PM CDT | Special Marine Warning | LOT | 118 min | |
| Sep 3, 2:42 PM CDT | Special Weather Statement | DVN | Henderson, Mercer | 48 min |
| Sep 3, 2:47 PM CDT | Severe Thunderstorm Warning | LOT | Will | 37 min |
| Sep 3, 2:49 PM CDT | Special Weather Statement | ILX | Fulton | 56 min |
| Sep 3, 2:52 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Henry, Mercer, Warren | 53 min |
| Sep 3, 2:54 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 36 min |
| Sep 3, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cook, DuPage, Ford, Fulton, Grundy and 23 more | 7 hr |
| Sep 3, 3:07 PM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Will | 3 hr |
| Sep 3, 3:22 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 53 min |
| Sep 3, 3:42 PM CDT | Severe Thunderstorm Warning | DVN | Warren | 14 min |
| Sep 3, 3:42 PM CDT | Small Craft Advisory | LOT | 30 hr | |
| Sep 3, 3:44 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox | 61 min |
| Sep 3, 3:44 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 28 min |
| Sep 3, 3:55 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Peoria, Tazewell, Woodford | 50 min |
| Sep 3, 4:35 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Peoria, Stark, Woodford | 40 min |
| Sep 3, 4:45 PM CDT | Rip Current Statement | LOT | Lake | 6 days |
| Sep 3, 5:02 PM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DuPage, Ford, Fulton, Grundy and 23 more | 58 min |
| Sep 3, 5:03 PM CDT | Special Weather Statement | DVN | Putnam | 57 min |
| Sep 3, 5:05 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Woodford | 25 min |
| Sep 3, 5:12 PM CDT | Special Weather Statement | LOT | Livingston | 33 min |
| Sep 3, 6:27 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 33 min |
| Sep 3, 6:42 PM CDT | Severe Thunderstorm Warning | ILX | Christian | 21 min |
| Sep 3, 6:42 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 24 min |
| Sep 4, 2:54 AM CDT | Gale Watch | LOT | 13 hr | |
| Sep 4, 3:37 PM CDT | Gale Warning | LOT | 18 hr | |
| Sep 4, 4:14 PM CDT | Lake Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 27 hr |
| Sep 5, 10:01 AM CDT | Small Craft Advisory | LOT | 4 days | |
| Sep 5, 4:09 PM CDT | Lake Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 26 hr |
| Sep 7, 10:55 AM CDT | Lake Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 4 hr |
| Sep 11, 9:10 AM CDT | Marine Dense Fog Advisory | LOT | 6 hr | |
| Sep 12, 3:23 AM CDT | Small Craft Advisory | LOT | 28 hr | |
| Sep 13, 3:21 PM CDT | Rip Current Statement | LOT | 55 hr | |
| Sep 13, 3:24 PM CDT | Small Craft Advisory | LOT | 60 hr | |
| Sep 18, 3:35 AM CDT | Rip Current Statement | LOT | Lake | 15 hr |
| Sep 18, 4:12 AM CDT | Small Craft Advisory | LOT | 23 hr | |
| Sep 19, 11:13 PM CDT | Dense Fog Advisory | LOT | DeKalb, DuPage, Ford, Grundy, Iroquois, Kane and 4 more | 11 hr |
| Sep 19, 11:28 PM CDT | Dense Fog Advisory | ILX | Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 22 more | 11 hr |
| Sep 19, 11:52 PM CDT | Dense Fog Advisory | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 9 hr |
| Sep 19, 11:57 PM CDT | Dense Fog Advisory | PAH | Alexander, Franklin, Hamilton, Jackson, Jefferson, Perry and 3 more | 6 hr |
| Sep 20, 3:12 PM CDT | Small Craft Advisory | LOT | 31 hr | |
| Sep 21, 5:06 AM CDT | Dense Fog Advisory | ILX | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 10 more | 4 hr |
| Sep 22, 11:34 PM CDT | Dense Fog Advisory | ILX | Champaign, Christian, Clark, Clay, Coles, Crawford and 16 more | 9 hr |
| Sep 22, 11:52 PM CDT | Dense Fog Advisory | LSX | Bond, Clinton, Fayette, Jersey, Macoupin, Madison and 6 more | 10 hr |
| Sep 24, 11:36 AM CDT | Special Marine Warning | LOT | 114 min | |
| Sep 25, 2:02 AM CDT | Dense Fog Advisory | ILX | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 10 more | 7 hr |
| Sep 25, 3:19 AM CDT | Gale Watch | LOT | 6 hr | |
| Sep 25, 9:09 AM CDT | Dense Fog Advisory | ILX | Champaign, Christian, Clark, Coles, Cumberland, DeWitt and 10 more | 89 min |
| Sep 25, 9:41 AM CDT | Gale Warning | LOT | 27 hr | |
| Sep 25, 10:13 AM CDT | Rip Current Statement | LOT | Lake | 24 hr |
| Sep 25, 1:06 PM CDT | Areal Flood Advisory | PAH | Franklin, Hamilton | 6 hr |
| Sep 26, 4:46 AM CDT | Areal Flood Advisory | LOT | Grundy, LaSalle, Livingston | 6 hr |
| Sep 26, 10:04 AM CDT | Small Craft Advisory | LOT | 29 hr | |
| Sep 26, 11:22 AM CDT | Special Weather Statement | LOT | Winnebago | 38 min |
| Sep 26, 11:47 AM CDT | Areal Flood Advisory | LOT | Boone, DeKalb, Kane, Lee, McHenry, Ogle and 1 more | 14 hr |
| Sep 26, 8:15 PM CDT | Areal Flood Advisory | LOT | Livingston | 6 hr |
| Sep 27, 9:04 AM CDT | River Flood Advisory | LOT | Will | 12 hr |
| Sep 27, 2:54 PM CDT | Gale Watch | LOT | 13 hr | |
| Sep 28, 2:59 AM CDT | Dense Fog Advisory | DVN | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Whiteside | 8 hr |
| Sep 28, 3:33 AM CDT | Gale Watch | LOT | 12 hr | |
| Sep 28, 3:33 AM CDT | Storm Watch | LOT | 12 hr | |
| Sep 28, 3:29 PM CDT | Gale Warning | LOT | 28 hr | |
| Sep 28, 3:29 PM CDT | Storm Warning | LOT | 45 hr | |
| Sep 28, 3:37 PM CDT | Wind Advisory | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 45 hr |
| Sep 28, 3:57 PM CDT | Wind Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 27 hr |
| Sep 28, 4:28 PM CDT | Rip Current Statement | LOT | Lake | 4 days |
| Sep 29, 3:16 AM CDT | Wind Advisory | ILX | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more | 16 hr |
| Sep 29, 12:08 PM CDT | Lake Wind Advisory | PAH | Edwards, Franklin, Gallatin, Hamilton, Jefferson, Perry and 4 more | 9 hr |
| Sep 29, 5:45 PM CDT | Special Weather Statement | LOT | Cook, DeKalb, DuPage, Grundy, Kane, Kendall and 3 more | 60 min |
| Sep 29, 6:03 PM CDT | Special Weather Statement | LOT | DeKalb, DuPage, Kane, Kendall, Lake, LaSalle | 27 min |
| Sep 30, 3:45 AM CDT | Gale Warning | LOT | 21 hr | |
| Sep 30, 3:48 AM CDT | Frost Advisory | DVN | Carroll, Jo Daviess, Stephenson | 28 hr |
| Sep 30, 3:53 AM CDT | Lake Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 13 hr |
| Sep 30, 11:58 AM CDT | Lakeshore Flood Statement | LOT | 4 hr | |
| Sep 30, 3:15 PM CDT | Small Craft Advisory | LOT | 43 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 | 15 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 8 |
| Flooding | |
| Areal Flood Advisory | 5 |
| River Flood Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 5 |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Coast and beach | |
| Lakeshore Flood Statement | 1 |
| Rip Current Statement | 5 |
| Marine | |
| Gale Warning | 4 |
| Special Marine Warning | 2 |
| Storm Warning | 1 |
| Gale Watch | 4 |
| Storm Watch | 1 |
| Marine Dense Fog Advisory | 1 |
| Small Craft Advisory | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Livingston County10
- Woodford County9
- DuPage County9
- LaSalle County9
- Fulton County8
- McLean County8
- Cook County8
- Kane County8
- Lake County8
- Will County8
- Henry County7
- Mercer County7
- Champaign County7
- Coles County7
- Douglas County7
- Edgar County7
- Marshall County7
- Moultrie County7
- Peoria County7
- Piatt County7
- Shelby County7
- Stark County7
- Vermilion County7
- Grundy County7
- Kendall County7
- Franklin County7
- Hamilton County7
- Henderson County6
- Putnam County6
- Warren County6
- Christian County6
- Cumberland County6
- Effingham County6
- Tazewell County6
- Ford County6
- Iroquois County6
- Kankakee County6
- Jo Daviess County6
- Winnebago County6
- DeKalb County6
59 more counties
- Jefferson County6
- Perry County6
- Wayne County6
- Bureau County5
- Clark County5
- DeWitt County5
- Knox County5
- Logan County5
- Macon County5
- Mason County5
- Schuyler County5
- Carroll County5
- Stephenson County5
- Whiteside County5
- McHenry County5
- Alexander County5
- Edwards County5
- Gallatin County5
- Jackson County5
- Saline County5
- Union County5
- Wabash County5
- White County5
- Williamson County5
- Hancock County4
- McDonough County4
- Rock Island County4
- Clay County4
- Crawford County4
- Jasper County4
- Lawrence County4
- Richland County4
- Sangamon County4
- Boone County4
- Lee County4
- Ogle County4
- Hardin County4
- Johnson County4
- Massac County4
- Pope County4
- Pulaski County4
- Cass County3
- Menard County3
- Morgan County3
- Scott County3
- Monroe County3
- Saint Clair County3
- Madison County3
- Bond County2
- Clinton County2
- Fayette County2
- Jersey County2
- Macoupin County2
- Marion County2
- Montgomery County2
- Randolph County2
- Washington County2
- Calhoun County1
- Greene County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.