Alert archive / Illinois / Boone County
Weather alerts in Boone County, Illinois, 1997
20 weather alerts in 1997, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Boone County and its neighbors
Each county as a circle sized by its count in 1997. Tap one for its archive.
- Alerts
- 20
- Warnings
- 9
- Watches
- 11
- Advisories
- 0
- Busiest month
- June6 alerts
- Busiest day
- February 21, 19973 alerts
Over time
By month
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 | Lasted |
|---|---|---|---|
| Feb 21, 8:14 AM CST | Flash Flood Warning | LOT | 4 hr |
| Feb 21, 8:32 AM CST | Flash Flood Warning | LOT | 3 hr |
| Feb 21, 11:35 AM CST | Flash Flood Warning | LOT | 6 hr |
| Apr 5, 4:15 PM CST | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 5, 4:59 PM CST | Severe Thunderstorm Warning | LOT | 31 min |
| May 18, 5:30 PM CDT | Tornado Watch | SPC | 6 hr |
| May 18, 6:30 PM CDT | Severe Thunderstorm Warning | LOT | 45 min |
| Jun 15, 6:30 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 15, 9:50 PM CDT | Severe Thunderstorm Warning | LOT | 55 min |
| Jun 15, 11:56 PM CDT | Flash Flood Warning | LOT | 3 hr |
| Jun 20, 7:32 PM CDT | Severe Thunderstorm Warning | LOT | 58 min |
| Jun 21, 2:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 21, 7:00 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 18, 10:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 2:42 PM CDT | Severe Thunderstorm Warning | LOT | 48 min |
| Jul 25, 7:45 PM CDT | Tornado Watch | SPC | 5 hr |
| Jul 27, 8:45 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 16, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 16, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 19, 11:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
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 | 5 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 3 |
| Flooding | |
| Flash Flood Warning | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive19961998
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.