Alert archive / Illinois / Johnson County / 2024
Weather alerts in Johnson County, Illinois, July 2024
16 weather alerts in July 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 16
- Warnings
- 2
- Watches
- 4
- Advisories
- 4
- Busiest day
- July 4, 20242 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 |
|---|---|---|---|
| Jul 2, 1:16 PM CDT | Heat Advisory | PAH | 31 hr |
| Jul 3, 1:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 2:56 AM CDT | Heat Advisory | PAH | 18 hr |
| Jul 4, 5:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 8, 2:24 AM CDT | Flood Watch | PAH | 40 hr |
| Jul 9, 2:07 PM CDT | Tornado Watch | SPC | 10 hr |
| Jul 12, 4:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 13, 2:01 PM CDT | Heat Advisory | PAH | 69 hr |
| Jul 15, 2:10 PM CDT | Flood Watch | PAH | 40 hr |
| Jul 16, 12:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 16, 9:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 1:15 AM CDT | Areal Flood Advisory | PAH | 4 hr |
| Jul 29, 2:32 PM CDT | Excessive Heat Warning | PAH | 3 days |
| Jul 30, 1:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 2:58 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 30, 7:18 PM CDT | Severe Thunderstorm Warning | PAH | 42 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 | 1 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 6 |
| Flooding | |
| Flood Watch | 2 |
| Areal Flood Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 3 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.