Alert archive / Illinois / Mason County / 2021
Weather alerts in Mason County, Illinois, August 2021
13 weather alerts in August 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 13
- Warnings
- 2
- Watches
- 0
- Advisories
- 5
- Busiest day
- August 8, 20213 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 |
|---|---|---|---|
| Aug 1, 1:03 AM CDT | Dense Fog Advisory | ILX | 7 hr |
| Aug 8, 11:40 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 8, 3:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 8, 5:05 PM CDT | Severe Thunderstorm Warning | ILX | 25 min |
| Aug 9, 1:54 PM CDT | Heat Advisory | ILX | 29 hr |
| Aug 10, 3:49 PM CDT | Heat Advisory | ILX | 27 hr |
| Aug 11, 6:26 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 2:45 AM CDT | Heat Advisory | ILX | 15 hr |
| Aug 12, 3:16 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 12, 2:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 23, 2:53 PM CDT | Heat Advisory | ILX | 5 days |
| Aug 24, 8:43 PM CDT | Severe Thunderstorm Warning | ILX | 47 min |
| Aug 25, 4:02 PM CDT | Mesoscale Discussion | SPC | 88 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 | 2 |
| Mesoscale Discussion | 6 |
| Heat | |
| Heat Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.