Alert archive / Illinois / McHenry County / 2004
Weather alerts in McHenry County, Illinois, May 2004
36 weather alerts in May 2004, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 36
- Warnings
- 10
- Watches
- 9
- Advisories
- 0
- Busiest day
- May 23, 20046 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 |
|---|---|---|---|
| May 7, 4:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| May 7, 4:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 7, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 7, 8:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 8, 4:00 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 8, 9:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 9, 11:48 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 9, 4:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 9, 6:09 PM CDT | Severe Thunderstorm Warning | LOT | 21 min |
| May 10, 11:05 AM CDT | Mesoscale Discussion | SPC | 115 min |
| May 12, 4:13 PM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| May 12, 4:53 PM CDT | Severe Thunderstorm Warning | LOT | 52 min |
| May 17, 6:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| May 17, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 17, 11:43 PM CDT | Flash Flood Warning | LOT | 6 hr |
| May 20, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 20, 7:20 PM CDT | Flash Flood Warning | LOT | 3 hr |
| May 20, 7:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 20, 9:02 PM CDT | Severe Thunderstorm Warning | LOT | 43 min |
| May 21, 5:35 PM CDT | Tornado Watch | SPC | 5 hr |
| May 21, 7:09 PM CDT | Flash Flood Warning | LOT | 3 hr |
| May 22, 12:05 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 22, 12:36 AM CDT | Severe Thunderstorm Warning | LOT | 54 min |
| May 22, 2:41 AM CDT | Mesoscale Discussion | SPC | 94 min |
| May 22, 6:15 PM CDT | Tornado Watch | SPC | 6 hr |
| May 22, 8:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 23, 12:24 AM CDT | Mesoscale Discussion | SPC | 66 min |
| May 23, 12:40 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 23, 4:30 AM CDT | Mesoscale Discussion | SPC | 60 min |
| May 23, 2:05 PM CDT | Tornado Watch | SPC | 8 hr |
| May 23, 5:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 30, 3:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 30, 4:25 PM CDT | Tornado Watch | SPC | 6 hr |
| May 30, 5:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 30, 7:16 PM CDT | Flash Flood Warning | LOT | 119 min |
| May 30, 7:16 PM CDT | Severe Thunderstorm Warning | LOT | 44 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 | 6 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 17 |
| Flooding | |
| Flash Flood Warning | 4 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20032005
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.