Alert archive / Illinois / Saint Clair County / 2011
Weather alerts in Saint Clair County, Illinois, May 2011
31 weather alerts in May 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 31
- Warnings
- 10
- Watches
- 8
- Advisories
- 3
- Busiest day
- May 25, 201115 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 1, 4:30 AM CDT | Flash Flood Watch | LSX | 42 hr |
| May 3, 3:36 AM CDT | Frost Advisory | LSX | 28 hr |
| May 11, 2:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 13, 4:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 22, 12:51 PM CDT | Tornado Watch | SPC | 10 hr |
| May 22, 7:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 22, 8:26 PM CDT | Tornado Watch | SPC | 8 hr |
| May 23, 10:55 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 12:04 PM CDT | Severe Thunderstorm Warning | LSX | 41 min |
| May 23, 12:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 12:42 PM CDT | Severe Thunderstorm Warning | LSX | 48 min |
| May 23, 12:53 PM CDT | Areal Flood Advisory | LSX | 3 hr |
| May 24, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 24, 3:44 PM CDT | Flash Flood Watch | LSX | 32 hr |
| May 24, 4:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 25, 12:48 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 25, 1:22 AM CDT | Tornado Watch | SPC | 7 hr |
| May 25, 4:58 AM CDT | Mesoscale Discussion | SPC | 92 min |
| May 25, 7:48 AM CDT | Mesoscale Discussion | SPC | 87 min |
| May 25, 10:18 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 25, 11:09 AM CDT | Tornado Watch | SPC | 10 hr |
| May 25, 12:15 PM CDT | River Flood Warning | LSX | 46 days |
| May 25, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | 45 min |
| May 25, 4:11 PM CDT | Tornado Warning | LSX | 49 min |
| May 25, 4:23 PM CDT | Tornado Warning | LSX | 52 min |
| May 25, 5:00 PM CDT | Severe Thunderstorm Warning | LSX | 25 min |
| May 25, 5:08 PM CDT | Tornado Warning | LSX | 52 min |
| May 25, 5:12 PM CDT | Tornado Warning | LSX | 48 min |
| May 25, 5:46 PM CDT | Tornado Warning | LSX | 44 min |
| May 25, 5:48 PM CDT | Areal Flood Advisory | LSX | 5 hr |
| May 28, 5:39 PM CDT | Mesoscale Discussion | SPC | 66 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 | 4 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 10 |
| Flooding | |
| River Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Cold | |
| Frost Advisory | 1 |
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.