Alert archive / Illinois / 2017
Weather alerts in Illinois, September 2017
60 weather alerts in September 2017, 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 2017. Tap one for its archive.
- Alerts
- 60
- Warnings
- 18
- Watches
- 1
- Advisories
- 18
- Busiest day
- September 4, 201714 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 3, 3:07 AM CDT | Small Craft Advisory | LOT | 4 days | |
| Sep 3, 3:25 PM CDT | Beach Hazards Statement | LOT | 4 days | |
| Sep 4, 2:54 AM CDT | Lake Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 16 hr |
| Sep 4, 2:17 PM CDT | Mesoscale Discussion | SPC | Champaign, Douglas, Edgar, Ford, Iroquois, Vermilion | 118 min |
| Sep 4, 3:43 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, DeWitt, Douglas, Ford, Greene and 16 more | 2 hr |
| Sep 4, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Champaign, Christian, Clark, Clay and 29 more | 6 hr |
| Sep 4, 4:05 PM CDT | Special Weather Statement | ILX | Sangamon | 55 min |
| Sep 4, 4:21 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 24 min |
| Sep 4, 4:23 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 38 min |
| Sep 4, 4:25 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 65 min |
| Sep 4, 4:51 PM CDT | Special Weather Statement | ILX | Christian | 39 min |
| Sep 4, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Montgomery | 60 min |
| Sep 4, 5:22 PM CDT | Severe Thunderstorm Warning | ILX | Macon, Moultrie, Piatt, Shelby | 38 min |
| Sep 4, 6:05 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Champaign, Christian, Clark, Clay and 28 more | 115 min |
| Sep 4, 6:11 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Jersey, Macoupin, Madison, Montgomery | 64 min |
| Sep 4, 6:53 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Saint Clair | 82 min |
| Sep 4, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 43 min |
| Sep 4, 7:55 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 41 min |
| Sep 4, 9:26 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 19 more | 64 min |
| Sep 4, 9:27 PM CDT | Special Weather Statement | PAH | Hamilton | 48 min |
| Sep 4, 10:02 PM CDT | Special Weather Statement | PAH | Franklin | 43 min |
| Sep 4, 10:06 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Hamilton, Saline, Williamson | 21 min |
| Sep 4, 10:47 PM CDT | Special Weather Statement | PAH | Williamson | 43 min |
| Sep 5, 4:06 AM CDT | Special Weather Statement | PAH | Hamilton, White | 24 min |
| Sep 5, 4:48 AM CDT | Special Weather Statement | PAH | Alexander | 27 min |
| Sep 5, 5:12 AM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 33 min |
| Sep 5, 5:30 AM CDT | Severe Thunderstorm Warning | PAH | Pulaski | 35 min |
| Sep 5, 6:26 AM CDT | Special Weather Statement | PAH | Massac | 49 min |
| Sep 6, 4:25 PM CDT | Beach Hazards Statement | LOT | 5 hr | |
| Sep 11, 1:45 PM CDT | Lake Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 22 hr |
| Sep 14, 1:09 AM CDT | Dense Fog Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 9 hr |
| Sep 14, 1:14 AM CDT | Dense Fog Advisory | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 9 hr |
| Sep 14, 3:19 AM CDT | Dense Fog Advisory | LSX | Bond, Brown, Calhoun, Clinton, Fayette, Greene and 10 more | 6 hr |
| Sep 14, 3:58 AM CDT | Marine Dense Fog Advisory | LOT | 5 hr | |
| Sep 14, 4:28 AM CDT | Dense Fog Advisory | DVN | Bureau, Carroll, Henry, McDonough, Putnam, Stephenson and 2 more | 6 hr |
| Sep 14, 6:10 AM CDT | Dense Fog Advisory | PAH | Alexander, Edwards, Franklin, Hamilton, Jackson, Jefferson and 9 more | 3 hr |
| Sep 14, 9:38 AM CDT | Marine Dense Fog Advisory | LOT | 5 hr | |
| Sep 15, 5:01 AM CDT | Dense Fog Advisory | PAH | Edwards, Gallatin, Hamilton, Hardin, Saline, Wabash and 2 more | 4 hr |
| Sep 18, 7:58 PM CDT | Special Weather Statement | PAH | Union | 32 min |
| Sep 18, 8:19 PM CDT | Special Weather Statement | PAH | Jackson | 26 min |
| Sep 18, 8:25 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Williamson | 35 min |
| Sep 18, 8:50 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jackson, Perry, Williamson | 14 min |
| Sep 18, 9:00 PM CDT | Special Weather Statement | LSX | Madison | 45 min |
| Sep 18, 11:19 PM CDT | Dense Fog Advisory | LSX | Adams, Bond, Brown, Calhoun, Greene, Jersey and 6 more | 11 hr |
| Sep 18, 11:49 PM CDT | Special Weather Statement | ILX | Vermilion | 41 min |
| Sep 19, 12:43 AM CDT | Severe Thunderstorm Warning | PAH | Alexander, Union | 47 min |
| Sep 19, 12:50 AM CDT | Dense Fog Advisory | DVN | Hancock, Henderson, McDonough, Mercer, Rock Island, Warren | 9 hr |
| Sep 19, 1:15 AM CDT | Special Weather Statement | PAH | Union | 45 min |
| Sep 19, 1:18 AM CDT | Dense Fog Advisory | ILX | Cass, Christian, DeWitt, Fulton, Knox, Logan and 9 more | 9 hr |
| Sep 20, 12:31 AM CDT | Dense Fog Advisory | LOT | Lake, McHenry | 8 hr |
| Sep 20, 7:38 PM CDT | Special Weather Statement | DVN | Carroll, Henry, Mercer, Rock Island, Whiteside | 67 min |
| Sep 20, 7:40 PM CDT | Special Weather Statement | DVN | Carroll, Henry, Mercer, Rock Island, Whiteside | 65 min |
| Sep 20, 7:58 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island | 47 min |
| Sep 20, 8:37 PM CDT | Flash Flood Warning | DVN | Rock Island | 6 hr |
| Sep 21, 2:08 AM CDT | Flash Flood Warning | DVN | Rock Island | 6 hr |
| Sep 22, 10:16 AM CDT | Heat Advisory | DVN | Carroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 4 more | 9 hr |
| Sep 26, 2:58 PM CDT | Small Craft Advisory | LOT | 43 hr | |
| Sep 26, 3:56 PM CDT | Beach Hazards Statement | LOT | 36 hr | |
| Sep 28, 2:56 PM CDT | Small Craft Advisory | LOT | 43 hr | |
| Sep 28, 3:25 PM CDT | Beach Hazards Statement | LOT | Lake | 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 | 16 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 15 |
| Flooding | |
| Flash Flood Warning | 2 |
| Heat | |
| Heat Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Coast and beach | |
| Beach Hazards Statement | 4 |
| Marine | |
| Marine Dense Fog Advisory | 2 |
| Small Craft Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Macoupin County8
- Montgomery County8
- Sangamon County8
- Madison County8
- Hamilton County7
- Williamson County7
- Jersey County7
- Bond County7
- Saint Clair County7
- Rock Island County7
- Alexander County6
- Franklin County6
- Jackson County6
- Union County6
- Vermilion County6
- Christian County6
- Greene County6
- Macon County6
- Morgan County6
- Shelby County6
- Clinton County6
- Monroe County6
- Edwards County5
- Perry County5
- Pulaski County5
- Saline County5
- Wabash County5
- Wayne County5
- White County5
- Champaign County5
- Douglas County5
- Edgar County5
- Moultrie County5
- Piatt County5
- Scott County5
- Henry County5
- Jefferson County4
- DeWitt County4
- Pike County4
- Calhoun County4
60 more counties
- Clark County4
- Clay County4
- Coles County4
- Crawford County4
- Cumberland County4
- Effingham County4
- Fayette County4
- Jasper County4
- Marion County4
- Richland County4
- Washington County4
- Carroll County4
- Whiteside County4
- Mercer County4
- Gallatin County3
- Hardin County3
- Johnson County3
- Massac County3
- Ford County3
- Iroquois County3
- Logan County3
- Menard County3
- Lawrence County3
- Randolph County3
- Lake County3
- McDonough County3
- Warren County3
- Pope County2
- McLean County2
- Cass County2
- Fulton County2
- Knox County2
- Mason County2
- Peoria County2
- Schuyler County2
- Tazewell County2
- McHenry County2
- Brown County2
- Hancock County2
- Henderson County2
- Marshall County1
- Stark County1
- Woodford County1
- Boone County1
- DeKalb County1
- DuPage County1
- Grundy County1
- Kane County1
- Kankakee County1
- Kendall County1
- LaSalle County1
- Lee County1
- Livingston County1
- Ogle County1
- Winnebago County1
- Bureau County1
- Putnam County1
- Stephenson County1
- Adams County1
- Jo Daviess County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.