Alert archive / Illinois / Severe Thunderstorm Warnings / 2017
Severe Thunderstorm Warnings in Illinois, February 2017
26 severe thunderstorm warnings in February 2017. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in February 2017. Tap one for its archive.
- Severe Thunderstorm Warnings
- 26
- Busiest day
- February 28, 201725 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Feb 23, 10:52 PM CST | Severe Thunderstorm Warning | LOT | Lee | 26 min |
| Feb 28, 2:37 AM CST | Severe Thunderstorm Warning | LSX | Randolph | 16 min |
| Feb 28, 2:51 AM CST | Severe Thunderstorm Warning | PAH | Jackson, Jefferson, Perry | 12 min |
| Feb 28, 3:04 PM CST | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough | 41 min |
| Feb 28, 3:35 PM CST | Severe Thunderstorm Warning | ILX | Stark | 25 min |
| Feb 28, 3:44 PM CST | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 46 min |
| Feb 28, 3:50 PM CST | Severe Thunderstorm Warning | ILX | Knox | 26 min |
| Feb 28, 3:54 PM CST | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 51 min |
| Feb 28, 4:07 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 26 min |
| Feb 28, 4:10 PM CST | Severe Thunderstorm Warning | DVN | Bureau, Henry | 35 min |
| Feb 28, 4:11 PM CST | Severe Thunderstorm Warning | ILX | Knox | 36 min |
| Feb 28, 4:14 PM CST | Severe Thunderstorm Warning | LOT | LaSalle | 46 min |
| Feb 28, 4:15 PM CST | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 32 min |
| Feb 28, 4:23 PM CST | Severe Thunderstorm Warning | DVN | Carroll, Whiteside | 67 min |
| Feb 28, 4:33 PM CST | Severe Thunderstorm Warning | ILX | Morgan, Scott | 29 min |
| Feb 28, 4:41 PM CST | Severe Thunderstorm Warning | LOT | Lee, Ogle | 34 min |
| Feb 28, 4:44 PM CST | Severe Thunderstorm Warning | ILX | Marshall, Peoria, Stark | 51 min |
| Feb 28, 4:46 PM CST | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 44 min |
| Feb 28, 5:10 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 33 min |
| Feb 28, 5:13 PM CST | Severe Thunderstorm Warning | LOT | LaSalle | 47 min |
| Feb 28, 5:15 PM CST | Severe Thunderstorm Warning | LOT | DeKalb, Lee, Ogle | 45 min |
| Feb 28, 5:28 PM CST | Severe Thunderstorm Warning | LOT | Grundy, Kendall, Will | 47 min |
| Feb 28, 5:29 PM CST | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Saint Clair | 46 min |
| Feb 28, 5:32 PM CST | Severe Thunderstorm Warning | ILX | Marshall | 28 min |
| Feb 28, 5:36 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 39 min |
| Feb 28, 5:51 PM CST | Severe Thunderstorm Warning | LOT | Cook, DeKalb, DuPage, Kane, Lake, McHenry | 39 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lee County3
- Randolph County3
- Bureau County3
- Monroe County3
- Saint Clair County3
- Hancock County2
- Henderson County2
- McDonough County2
- Stark County2
- Knox County2
- Putnam County2
- LaSalle County2
- Ogle County2
- Marshall County2
- DeKalb County2
- Jackson County1
- Jefferson County1
- Perry County1
- Warren County1
- Henry County1
- Calhoun County1
- Greene County1
- Jersey County1
- Carroll County1
- Whiteside County1
- Morgan County1
- Scott County1
- Peoria County1
- Grundy County1
- Kendall County1
- Will County1
- Bond County1
- Clinton County1
- Madison County1
- Cook County1
- DuPage County1
- Kane County1
- Lake County1
- McHenry 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.