Alert archive / Illinois / 1991
Weather alerts in Illinois, April 1991
27 weather alerts in April 1991, 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 April 1991. Tap one for its archive.
- Alerts
- 27
- Warnings
- 27
- Watches
- 0
- Advisories
- 0
- Busiest day
- April 30, 199116 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 |
|---|---|---|---|---|
| Apr 8, 3:43 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 62 min |
| Apr 9, 3:40 AM CDT | Severe Thunderstorm Warning | PAH | Union | 35 min |
| Apr 9, 4:18 AM CDT | Severe Thunderstorm Warning | PAH | Union | 42 min |
| Apr 9, 4:56 AM CDT | Severe Thunderstorm Warning | PAH | Johnson | 34 min |
| Apr 23, 1:44 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane | 46 min |
| Apr 28, 3:06 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 69 min |
| Apr 28, 3:42 AM CDT | Severe Thunderstorm Warning | ILX | Morgan | 48 min |
| Apr 28, 5:12 AM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 33 min |
| Apr 28, 5:31 AM CDT | Severe Thunderstorm Warning | ILX | Macon | 59 min |
| Apr 28, 6:12 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 48 min |
| Apr 28, 6:34 AM CDT | Severe Thunderstorm Warning | ILX | Piatt | 41 min |
| Apr 29, 7:04 PM CDT | Tornado Warning | ILX | McLean, Woodford | 26 min |
| Apr 29, 7:23 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 67 min |
| Apr 29, 7:29 PM CDT | Tornado Warning | LOT | LaSalle | 61 min |
| Apr 29, 7:33 PM CDT | Tornado Warning | ILX | McLean, Woodford | 27 min |
| Apr 29, 7:40 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon | 65 min |
| Apr 29, 7:40 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 65 min |
| Apr 29, 7:41 PM CDT | Tornado Warning | ILX | DeKalb, Lee | 34 min |
| Apr 29, 7:58 PM CDT | Tornado Warning | ILX | Boone | 32 min |
| Apr 29, 8:02 PM CDT | Tornado Warning | ILX | McLean | 58 min |
| Apr 29, 8:03 PM CDT | Tornado Warning | LOT | Grundy, Kendall | 57 min |
| Apr 29, 8:03 PM CDT | Tornado Warning | LOT | Kane | 57 min |
| Apr 29, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Livingston | 60 min |
| Apr 29, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | Kendall | 60 min |
| Apr 29, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | McHenry | 60 min |
| Apr 29, 8:31 PM CDT | Tornado Warning | ILX | DeWitt, Piatt | 44 min |
| Apr 29, 8:37 PM CDT | Tornado Warning | LOT | McHenry | 68 min |
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 | 17 |
| Tornado Warning | 10 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- DeWitt County3
- McLean County3
- Union County2
- Kane County2
- Macon County2
- Piatt County2
- Woodford County2
- LaSalle County2
- Livingston County2
- Grundy County2
- Kendall County2
- McHenry County2
- Jo Daviess County1
- Johnson County1
- DuPage County1
- Calhoun County1
- Greene County1
- Morgan County1
- Sangamon County1
- Christian County1
- DeKalb County1
- Lee County1
- Boone County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19901992
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.