Alert archive / Illinois / Johnson County / 2026
Weather alerts in Johnson County, Illinois, June 2026
21 weather alerts in June 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 21
- Warnings
- 5
- Watches
- 5
- Advisories
- 2
- Busiest day
- June 27, 20266 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 | Lasted |
|---|---|---|---|
| Jun 1, 6:01 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 8:15 AM CDT | Severe Thunderstorm Warning | PAH | 17 min |
| Jun 8, 1:23 AM CDT | Flood Watch | PAH | 44 hr |
| Jun 8, 1:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 12:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 12, 2:32 AM CDT | Special Weather Statement | PAH | 43 min |
| Jun 17, 12:51 AM CDT | Wind Advisory | PAH | 19 hr |
| Jun 21, 10:06 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 25, 1:36 AM CDT | Flood Watch | PAH | 3 days |
| Jun 25, 8:39 PM CDT | Special Weather Statement | PAH | 36 min |
| Jun 25, 8:44 PM CDT | Severe Thunderstorm Warning | PAH | 24 min |
| Jun 26, 4:52 AM CDT | Flash Flood Warning | PAH | 3 hr |
| Jun 26, 3:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 26, 3:57 PM CDT | Tornado Watch | SPC | 3 hr |
| Jun 27, 9:39 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 11:00 AM CDT | Heat Advisory | PAH | 33 hr |
| Jun 27, 11:00 AM CDT | Extreme Heat Watch | PAH | 24 hr |
| Jun 27, 12:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 12:59 PM CDT | Severe Thunderstorm Warning | PAH | 46 min |
| Jun 27, 3:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 28, 11:28 AM CDT | Extreme Heat Warning | PAH | 5 days |
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 | 3 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flood Watch | 2 |
| Heat | |
| Extreme Heat Warning | 1 |
| Extreme Heat Watch | 1 |
| Heat Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.