Alert archive / Illinois / Williamson County
Weather alerts in Williamson County, Illinois, 2011
179 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Williamson County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 179
- Warnings
- 57
- Watches
- 30
- Advisories
- 43
- Busiest month
- April55 alerts
- Busiest day
- April 27, 20118 alerts
Over time
By month
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 |
|---|---|---|---|
| Jan 10, 3:17 AM CST | Winter Weather Advisory | PAH | 51 hr |
| Jan 18, 3:59 PM CST | Winter Weather Advisory | PAH | 50 hr |
| Jan 20, 10:10 PM CST | Freezing Fog Advisory | PAH | 5 hr |
| Jan 22, 4:20 AM CST | Winter Weather Advisory | PAH | 23 hr |
| Jan 30, 12:52 PM CST | Winter Storm Watch | PAH | 26 hr |
| Feb 1, 2:46 AM CST | Wind Advisory | PAH | 33 hr |
| Feb 4, 3:02 AM CST | Winter Weather Advisory | PAH | 33 hr |
| Feb 8, 2:31 PM CST | Winter Weather Advisory | PAH | 28 hr |
| Feb 9, 6:03 PM CST | Winter Weather Advisory | PAH | 2 hr |
| Feb 17, 11:38 AM CST | Wind Advisory | PAH | 6 hr |
| Feb 27, 1:21 AM CST | Flash Flood Watch | PAH | 32 hr |
| Feb 27, 4:57 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 27, 8:25 PM CST | Mesoscale Discussion | SPC | 65 min |
| Feb 27, 8:53 PM CST | Severe Thunderstorm Warning | PAH | 25 min |
| Feb 27, 9:23 PM CST | Severe Thunderstorm Warning | PAH | 37 min |
| Feb 27, 9:40 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 27, 10:41 PM CST | Mesoscale Discussion | SPC | 94 min |
| Feb 28, 2:02 AM CST | Severe Thunderstorm Warning | PAH | 28 min |
| Mar 3, 3:38 PM CST | Flash Flood Watch | PAH | 43 hr |
| Mar 14, 7:13 AM CDT | Areal Flood Advisory | PAH | 4 hr |
| Mar 16, 10:32 AM CDT | River Flood Warning | PAH | 3 days |
| Apr 2, 5:00 AM CDT | Wind Advisory | PAH | 57 hr |
| Apr 3, 8:15 AM CDT | Red Flag Warning | PAH | 11 hr |
| Apr 4, 7:22 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 6, 5:30 AM CDT | Red Flag Warning | PAH | 14 hr |
| Apr 9, 6:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 3:19 AM CDT | Wind Advisory | PAH | 17 hr |
| Apr 11, 5:57 PM CDT | Areal Flood Advisory | PAH | 4 hr |
| Apr 15, 12:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 15, 12:47 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 15, 3:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 15, 5:20 PM CDT | Severe Thunderstorm Warning | PAH | 25 min |
| Apr 15, 5:40 PM CDT | Severe Thunderstorm Warning | PAH | 50 min |
| Apr 15, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 6:26 PM CDT | Severe Thunderstorm Warning | PAH | 34 min |
| Apr 19, 6:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 19, 6:46 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 19, 8:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 19, 8:15 PM CDT | Severe Thunderstorm Warning | PAH | 60 min |
| Apr 19, 8:47 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| Apr 21, 3:46 PM CDT | Flash Flood Watch | PAH | 6 days |
| Apr 21, 7:54 PM CDT | River Flood Warning | PAH | 30 days |
| Apr 22, 10:09 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 22, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 22, 5:27 PM CDT | Mesoscale Discussion | SPC | 33 min |
| Apr 22, 5:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 22, 9:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 23, 12:17 AM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 23, 12:55 AM CDT | Severe Thunderstorm Warning | PAH | 50 min |
| Apr 23, 1:04 AM CDT | Tornado Watch | SPC | 4 hr |
| Apr 23, 3:41 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 23, 5:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 23, 7:14 PM CDT | Flash Flood Warning | PAH | 10 hr |
| Apr 23, 8:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 24, 12:02 PM CDT | Areal Flood Warning | PAH | 10 hr |
| Apr 24, 9:55 PM CDT | Areal Flood Warning | PAH | 59 hr |
| Apr 24, 11:48 PM CDT | Flash Flood Warning | PAH | 3 hr |
| Apr 25, 12:06 AM CDT | Severe Thunderstorm Warning | PAH | 17 min |
| Apr 25, 3:51 AM CDT | Flash Flood Warning | PAH | 3 hr |
| Apr 25, 4:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 25, 4:50 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 25, 6:46 PM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 25, 7:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 25, 7:45 PM CDT | Severe Thunderstorm Warning | PAH | 45 min |
| Apr 26, 7:49 PM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 26, 9:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 27, 9:10 AM CDT | Areal Flood Warning | PAH | 48 hr |
| Apr 27, 2:33 PM CDT | Severe Thunderstorm Warning | PAH | 27 min |
| Apr 27, 3:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 27, 3:29 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 4:22 PM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 27, 4:56 PM CDT | Tornado Warning | PAH | 49 min |
| Apr 28, 12:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 29, 9:29 AM CDT | Areal Flood Warning | PAH | 4 days |
| Apr 29, 8:35 PM CDT | Flash Flood Watch | PAH | 50 hr |
| Apr 30, 4:18 AM CDT | Lake Wind Advisory | PAH | 14 hr |
| Apr 30, 11:54 PM CDT | Flash Flood Warning | PAH | 4 hr |
| May 1, 9:25 PM CDT | Flash Flood Warning | PAH | 7 hr |
| May 2, 4:38 AM CDT | Flash Flood Warning | PAH | 3 hr |
| May 3, 8:58 AM CDT | Areal Flood Warning | PAH | 5 days |
| May 8, 10:29 AM CDT | Areal Flood Warning | PAH | 24 hr |
| May 9, 9:59 AM CDT | Areal Flood Warning | PAH | 24 hr |
| May 13, 4:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 22, 4:30 AM CDT | Lake Wind Advisory | PAH | 15 hr |
| May 22, 11:43 PM CDT | Severe Thunderstorm Warning | PAH | 32 min |
| May 23, 10:55 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 12:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 2:09 PM CDT | Severe Thunderstorm Warning | PAH | 25 min |
| May 23, 3:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 23, 4:31 PM CDT | Severe Thunderstorm Warning | PAH | 29 min |
| May 23, 4:40 PM CDT | Severe Thunderstorm Warning | PAH | 40 min |
| May 25, 4:11 AM CDT | Lake Wind Advisory | PAH | 16 hr |
| May 25, 7:31 AM CDT | Mesoscale Discussion | SPC | 59 min |
| May 25, 11:02 AM CDT | Mesoscale Discussion | SPC | 28 min |
| May 25, 11:09 AM CDT | Tornado Watch | SPC | 10 hr |
| May 25, 3:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 25, 6:05 PM CDT | Tornado Warning | PAH | 25 min |
| May 25, 6:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 6:35 PM CDT | Tornado Warning | PAH | 40 min |
| May 28, 3:01 PM CDT | Lake Wind Advisory | PAH | 28 hr |
| Jun 5, 7:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 4:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 15, 2:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 17, 1:45 PM CDT | Severe Thunderstorm Warning | PAH | 45 min |
| Jun 17, 2:16 PM CDT | Severe Thunderstorm Warning | PAH | 16 min |
| Jun 18, 5:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 18, 7:56 AM CDT | Severe Thunderstorm Warning | PAH | 49 min |
| Jun 18, 10:59 AM CDT | River Flood Warning | PAH | 34 hr |
| Jun 19, 2:10 AM CDT | Flash Flood Watch | PAH | 7 hr |
| Jun 19, 2:14 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 19, 2:55 AM CDT | Tornado Watch | SPC | 6 hr |
| Jun 19, 3:41 AM CDT | Severe Thunderstorm Warning | PAH | 49 min |
| Jun 19, 4:21 AM CDT | Severe Thunderstorm Warning | PAH | 39 min |
| Jun 19, 4:36 AM CDT | Flash Flood Warning | PAH | 3 hr |
| Jun 19, 4:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 21, 12:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 21, 1:22 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 21, 2:30 PM CDT | Areal Flood Advisory | PAH | 103 min |
| Jun 21, 3:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 21, 4:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 22, 9:22 PM CDT | River Flood Warning | PAH | 34 hr |
| Jun 25, 11:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 25, 1:06 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 25, 2:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 25, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 25, 10:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 26, 1:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 26, 1:52 AM CDT | Areal Flood Advisory | PAH | 113 min |
| Jun 26, 1:58 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 26, 4:01 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Jun 26, 6:54 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Jun 26, 9:12 AM CDT | River Flood Warning | PAH | 19 days |
| Jun 27, 3:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 3, 10:51 AM CDT | Heat Advisory | PAH | 7 hr |
| Jul 3, 5:19 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Jul 7, 8:10 PM CDT | Areal Flood Advisory | PAH | 4 hr |
| Jul 9, 3:09 PM CDT | Heat Advisory | PAH | 27 hr |
| Jul 10, 3:53 AM CDT | Excessive Heat Watch | PAH | 10 hr |
| Jul 10, 1:28 PM CDT | Excessive Heat Warning | PAH | 56 hr |
| Jul 10, 1:28 PM CDT | Heat Advisory | PAH | 25 hr |
| Jul 12, 1:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 12, 6:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 12, 8:34 PM CDT | Flash Flood Warning | PAH | 86 min |
| Jul 16, 3:23 PM CDT | Excessive Heat Watch | PAH | 67 hr |
| Jul 18, 3:06 PM CDT | Heat Advisory | PAH | 19 hr |
| Jul 19, 9:58 AM CDT | Excessive Heat Warning | PAH | 5 days |
| Jul 27, 3:26 AM CDT | Heat Advisory | PAH | 40 hr |
| Jul 29, 3:27 AM CDT | Heat Advisory | PAH | 16 hr |
| Jul 31, 1:26 PM CDT | Heat Advisory | PAH | 5 hr |
| Aug 1, 4:11 AM CDT | Heat Advisory | PAH | 63 hr |
| Aug 2, 3:46 PM CDT | Excessive Heat Warning | PAH | 28 hr |
| Aug 4, 6:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 5, 2:20 PM CDT | Heat Advisory | PAH | 53 hr |
| Aug 7, 5:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 7, 5:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 18, 2:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 24, 12:11 PM CDT | Lake Wind Advisory | PAH | 6 hr |
| Sep 4, 4:14 PM CDT | Lake Wind Advisory | PAH | 27 hr |
| Sep 5, 4:09 PM CDT | Lake Wind Advisory | PAH | 26 hr |
| Sep 7, 10:55 AM CDT | Lake Wind Advisory | PAH | 4 hr |
| Sep 19, 11:57 PM CDT | Dense Fog Advisory | PAH | 6 hr |
| Sep 30, 3:53 AM CDT | Lake Wind Advisory | PAH | 13 hr |
| Oct 1, 8:38 PM CDT | Frost Advisory | PAH | 11 hr |
| Oct 14, 3:19 PM CDT | Fire Weather Watch | PAH | 36 hr |
| Oct 20, 3:32 AM CDT | Frost Advisory | PAH | 28 hr |
| Oct 21, 4:25 AM CDT | Frost Advisory | PAH | 28 hr |
| Nov 4, 10:14 PM CDT | Dense Fog Advisory | PAH | 13 hr |
| Nov 9, 2:32 PM CST | Freeze Warning | PAH | 41 hr |
| Nov 12, 4:16 PM CST | Wind Advisory | PAH | 24 hr |
| Nov 14, 12:27 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 14, 3:04 PM CST | Tornado Watch | SPC | 5 hr |
| Nov 14, 3:48 PM CST | Severe Thunderstorm Warning | PAH | 42 min |
| Nov 14, 5:32 PM CST | Mesoscale Discussion | SPC | 88 min |
| Nov 21, 4:12 AM CST | Flash Flood Watch | PAH | 28 hr |
| Nov 30, 8:14 AM CST | River Flood Warning | PAH | 3 days |
| Dec 3, 9:46 PM CST | River Flood Warning | PAH | 8 hr |
| Dec 4, 10:03 AM CST | River Flood Warning | PAH | 7 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
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.