Alert archive / Illinois / 1999
Weather alerts in Illinois, July 1999
51 weather alerts in July 1999, 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 July 1999. Tap one for its archive.
- Alerts
- 51
- Warnings
- 47
- Watches
- 4
- Advisories
- 0
- Busiest day
- July 28, 199915 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 |
|---|---|---|---|---|
| Jul 1, 1:39 AM CDT | Tornado Warning | ILX | Logan, Mason | 36 min |
| Jul 1, 12:33 PM CDT | Flash Flood Warning | PAH | White | 117 min |
| Jul 1, 2:33 PM CDT | Flash Flood Warning | PAH | Edwards, Wayne | 5 hr |
| Jul 1, 2:33 PM CDT | Flash Flood Warning | PAH | Wabash | 5 hr |
| Jul 1, 3:26 PM CDT | Flash Flood Warning | ILX | Richland | 3 hr |
| Jul 1, 4:06 PM CDT | Flash Flood Warning | ILX | Clay | 2 hr |
| Jul 1, 4:11 PM CDT | Flash Flood Warning | ILX | Lawrence | 2 hr |
| Jul 9, 3:42 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 33 min |
| Jul 9, 4:18 PM CDT | Tornado Warning | ILX | Cumberland | 42 min |
| Jul 9, 4:24 PM CDT | Severe Thunderstorm Warning | ILX | Effingham, Shelby | 51 min |
| Jul 9, 5:18 PM CDT | Severe Thunderstorm Warning | ILX | Crawford | 42 min |
| Jul 9, 6:56 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 54 min |
| Jul 9, 6:57 PM CDT | Flash Flood Warning | PAH | Wayne | 3 hr |
| Jul 9, 7:51 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 49 min |
| Jul 9, 8:16 PM CDT | Flash Flood Warning | LSX | Washington | 3 hr |
| Jul 9, 8:46 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 44 min |
| Jul 20, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stark and 2 more | 5 hr |
| Jul 20, 6:12 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 33 min |
| Jul 21, 6:25 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 50 min |
| Jul 23, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, Kane, Lake and 4 more | 6 hr |
| Jul 23, 4:00 PM CDT | Severe Thunderstorm Warning | ILX | Lawrence, Richland | 45 min |
| Jul 23, 5:06 PM CDT | Severe Thunderstorm Warning | DVN | Hancock | 49 min |
| Jul 23, 5:08 PM CDT | Severe Thunderstorm Warning | LOT | Boone, McHenry | 52 min |
| Jul 23, 5:26 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 49 min |
| Jul 23, 5:33 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 37 min |
| Jul 23, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, DeWitt, Ford, Fulton, Grundy and 20 more | 5 hr |
| Jul 23, 6:55 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 50 min |
| Jul 23, 7:26 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Peoria | 34 min |
| Jul 23, 7:32 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 48 min |
| Jul 23, 7:36 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 39 min |
| Jul 23, 7:52 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 48 min |
| Jul 23, 11:33 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham | 42 min |
| Jul 26, 8:31 PM CDT | Severe Thunderstorm Warning | DVN | Hancock | 44 min |
| Jul 26, 8:59 PM CDT | Severe Thunderstorm Warning | DVN | McDonough | 31 min |
| Jul 26, 9:06 PM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 39 min |
| Jul 26, 9:46 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Schuyler | 59 min |
| Jul 27, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Mercer, Rock Island | 5 hr |
| Jul 27, 11:55 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 45 min |
| Jul 28, 12:37 AM CDT | Severe Thunderstorm Warning | ILX | Knox, Stark | 53 min |
| Jul 28, 1:10 AM CDT | Tornado Warning | ILX | Stark | 20 min |
| Jul 28, 1:12 AM CDT | Severe Thunderstorm Warning | ILX | Peoria | 48 min |
| Jul 28, 1:31 AM CDT | Severe Thunderstorm Warning | ILX | Marshall, Stark | 59 min |
| Jul 28, 2:00 AM CDT | Severe Thunderstorm Warning | ILX | Peoria | 30 min |
| Jul 28, 2:01 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Tazewell | 59 min |
| Jul 28, 2:42 AM CDT | Severe Thunderstorm Warning | ILX | Logan | 48 min |
| Jul 28, 2:46 AM CDT | Severe Thunderstorm Warning | ILX | McLean | 59 min |
| Jul 28, 3:11 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 49 min |
| Jul 28, 4:50 AM CDT | Severe Thunderstorm Warning | DVN | Hancock | 50 min |
| Jul 28, 5:55 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Schuyler | 50 min |
| Jul 28, 6:41 AM CDT | Severe Thunderstorm Warning | ILX | McLean | 49 min |
| Jul 28, 11:54 AM CDT | Severe Thunderstorm Warning | LSX | Randolph | 36 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 | 36 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 4 |
| Flooding | |
| Flash Flood Warning | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rock Island County5
- Stark County5
- Fulton County5
- Henry County4
- Mercer County4
- Kane County4
- Peoria County4
- Logan County3
- Mason County3
- Whiteside County3
- DeKalb County3
- Hancock County3
- Knox County3
- McLean County3
- Schuyler County3
- Wayne County2
- Richland County2
- Clay County2
- Lawrence County2
- Effingham County2
- Saint Clair County2
- Carroll County2
- Stephenson County2
- Boone County2
- McHenry County2
- DeWitt County2
- Marshall County2
- Tazewell County2
- White County1
- Edwards County1
- Wabash County1
- Jersey County1
- Cumberland County1
- Shelby County1
- Crawford County1
- Madison County1
- Monroe County1
- Washington County1
- Franklin County1
- Jo Daviess County1
20 more counties
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. Rebuilt daily.