Alert archive / Illinois / Severe Thunderstorm Watches / 2016
Severe Thunderstorm Watches in Illinois, August 2016
2 severe thunderstorm watches in August 2016. 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 watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in August 2016. Tap one for its archive.
- Severe Thunderstorm Watches
- 2
- Busiest day
- August 4, 20161 severe thunderstorm watches
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 |
|---|---|---|---|---|
| Aug 4, 4:44 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside | 6 hr |
| Aug 4, 8:59 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, DeKalb, Henderson, Henry, Kane and 11 more | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carroll County1
- Jo Daviess County1
- Rock Island County1
- Stephenson County1
- Whiteside County1
- Boone County1
- Bureau County1
- DeKalb County1
- Henderson County1
- Henry County1
- Kane County1
- Knox County1
- LaSalle County1
- Lee County1
- McHenry County1
- Marshall County1
- Mercer County1
- Ogle County1
- Putnam County1
- Stark County1
- Warren County1
- Winnebago County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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. Warning verification from the Mesonet's Cow. Rebuilt daily.