Alert archive / Illinois / Grundy County / 2011
Weather alerts in Grundy County, Illinois, July 2011
20 weather alerts in July 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 20
- Warnings
- 3
- Watches
- 5
- Advisories
- 4
- Busiest day
- July 11, 20114 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, 1:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 2, 2:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 10, 2:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 5:07 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 11, 5:37 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 11, 7:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 11, 7:50 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 17, 3:40 PM CDT | Heat Advisory | LOT | 60 hr |
| Jul 19, 2:26 AM CDT | Excessive Heat Watch | LOT | 14 hr |
| Jul 19, 2:26 AM CDT | Excessive Heat Warning | LOT | 5 days |
| Jul 21, 4:06 AM CDT | Excessive Heat Watch | LOT | 24 hr |
| Jul 22, 3:50 AM CDT | Excessive Heat Watch | LOT | 24 hr |
| Jul 22, 7:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 23, 3:40 AM CDT | Heat Advisory | LOT | 32 hr |
| Jul 23, 11:43 PM CDT | Flash Flood Warning | LOT | 6 hr |
| Jul 24, 6:44 AM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| Jul 26, 1:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 27, 12:12 PM CDT | Heat Advisory | LOT | 7 hr |
| Jul 28, 4:04 AM CDT | Heat Advisory | LOT | 17 hr |
| Jul 29, 6:36 AM CDT | Special Weather Statement | LOT | 54 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 | 2 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 1 |
| Flooding | |
| Flash Flood Warning | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 4 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.