Alert archive / Illinois / McHenry County / Severe Thunderstorm Warnings / 2011
Severe Thunderstorm Warnings in McHenry County, Illinois, May 2011
9 severe thunderstorm warnings in May 2011. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.
- Severe Thunderstorm Warnings
- 9
- Busiest day
- May 11, 20115 severe thunderstorm warnings
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 |
|---|---|---|---|
| May 11, 3:19 PM CDT | Severe Thunderstorm Warning | LOT | 56 min |
| May 11, 4:06 PM CDT | Severe Thunderstorm Warning | LOT | 54 min |
| May 11, 4:51 PM CDT | Severe Thunderstorm Warning | LOT | 54 min |
| May 11, 5:11 PM CDT | Severe Thunderstorm Warning | LOT | 49 min |
| May 11, 5:38 PM CDT | Severe Thunderstorm Warning | LOT | 33 min |
| May 13, 12:35 PM CDT | Severe Thunderstorm Warning | LOT | 55 min |
| May 22, 7:22 PM CDT | Severe Thunderstorm Warning | LOT | 53 min |
| May 22, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | 60 min |
| May 22, 8:17 PM CDT | Severe Thunderstorm Warning | LOT | 58 min |
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.