Alert archive / Illinois / Severe Thunderstorm Watches / 1999
Severe Thunderstorm Watches in Illinois, February 1999
3 severe thunderstorm watches in February 1999. 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 February 1999. Tap one for its archive.
- Severe Thunderstorm Watches
- 3
- Busiest day
- February 11, 19992 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 |
|---|---|---|---|---|
| Feb 11, 11:15 AM CST | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Calhoun, Cass, Fulton and 26 more | 7 hr |
| Feb 11, 1:00 PM CST | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 8 more | 5 hr |
| Feb 27, 12:15 PM CST | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Hamilton, Jackson, Jefferson and 11 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Monroe County2
- Adams County1
- Brown County1
- Bureau County1
- Calhoun County1
- Cass County1
- Fulton County1
- Greene County1
- Hancock County1
- Henderson County1
- Henry County1
- Jersey County1
- Knox County1
- McDonough County1
- Macoupin County1
- Madison County1
- Marshall County1
- Mason County1
- Menard County1
- Mercer County1
- Morgan County1
- Peoria County1
- Pike County1
- Putnam County1
- Rock Island County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Stark County1
- Tazewell County1
- Warren County1
- Woodford County1
- Boone County1
- Carroll County1
- Cook County1
- DeKalb County1
- DuPage County1
- Jo Daviess County1
- Kane County1
- Lake County1
22 more counties
- Lee County1
- McHenry County1
- Ogle County1
- Stephenson County1
- Whiteside County1
- Winnebago County1
- Alexander County1
- Edwards County1
- Franklin County1
- Hamilton County1
- Jackson County1
- Jefferson County1
- Perry County1
- Randolph County1
- Saint Clair County1
- Saline County1
- Union County1
- Wabash County1
- Washington County1
- Wayne County1
- White County1
- Williamson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.