Alert archive / Illinois / McHenry County / 2011
Weather alerts in McHenry County, Illinois, July 2011
33 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
- 33
- Warnings
- 10
- Watches
- 6
- Advisories
- 3
- Busiest day
- July 23, 20116 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 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, 7:03 AM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Jul 11, 7:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 11, 8:01 AM CDT | Special Weather Statement | LOT | 29 min |
| Jul 17, 3:40 PM CDT | Heat Advisory | LOT | 60 hr |
| Jul 18, 6:30 AM CDT | Mesoscale Discussion | SPC | 2 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 19, 11:27 PM CDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Jul 21, 12:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 22, 4:35 AM CDT | Special Weather Statement | LOT | 40 min |
| Jul 22, 6:07 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| Jul 22, 9:02 AM CDT | Flash Flood Warning | LOT | 2 hr |
| Jul 22, 7:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 23, 12:36 AM CDT | Flash Flood Warning | LOT | 6 hr |
| Jul 23, 12:41 AM CDT | Severe Thunderstorm Warning | LOT | 64 min |
| Jul 23, 6:30 AM CDT | Flash Flood Warning | LOT | 5 hr |
| Jul 23, 9:37 AM CDT | River Flood Warning | LOT | 11 hr |
| Jul 23, 4:15 PM CDT | Flash Flood Watch | LOT | 18 hr |
| Jul 24, 6:19 AM CDT | Severe Thunderstorm Warning | LOT | 56 min |
| Jul 27, 8:43 AM CDT | Special Weather Statement | LOT | 62 min |
| Jul 27, 9:35 AM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jul 27, 11:44 AM CDT | Flash Flood Watch | LOT | 43 hr |
| Jul 27, 6:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 7:43 PM CDT | Tornado Watch | SPC | 5 hr |
| Jul 27, 9:29 PM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Jul 27, 9:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 27, 10:10 PM CDT | Severe Thunderstorm Warning | LOT | 80 min |
| Jul 28, 12:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 28, 11:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 29, 1:08 AM CDT | Special Weather Statement | LOT | 52 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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. Rebuilt daily.