Alert archive / Illinois / McHenry County / 2009
Weather alerts in McHenry County, Illinois, July 2009
13 weather alerts in July 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 13
- Warnings
- 4
- Watches
- 0
- Advisories
- 4
- Busiest day
- July 30, 20094 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 5, 3:58 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Jul 5, 3:39 PM CDT | Special Weather Statement | LOT | 21 min |
| Jul 11, 2:31 AM CDT | Mesoscale Discussion | SPC | 29 min |
| Jul 22, 12:49 PM CDT | Areal Flood Advisory | LOT | 103 min |
| Jul 22, 2:06 PM CDT | Special Weather Statement | LOT | 114 min |
| Jul 22, 2:30 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jul 23, 11:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 24, 9:52 PM CDT | Wind Advisory | LOT | 68 min |
| Jul 27, 11:05 PM CDT | High Wind Warning | LOT | 3 hr |
| Jul 30, 4:20 PM CDT | Tornado Warning | LOT | 31 min |
| Jul 30, 4:33 PM CDT | Tornado Warning | LOT | 42 min |
| Jul 30, 4:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 30, 5:12 PM CDT | Severe Thunderstorm Warning | LOT | 51 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 |
| Tornado Warning | 2 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 2 |
| Flooding | |
| Areal Flood Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.