Alert archive / Illinois / Boone County
Weather alerts in Boone County, Illinois, 2011
134 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Boone County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 134
- Warnings
- 31
- Watches
- 23
- Advisories
- 39
- Busiest month
- July30 alerts
- Busiest day
- June 9, 20119 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 17, 4:10 AM CST | Winter Weather Advisory | LOT | 24 hr |
| Jan 19, 2:50 PM CST | Wind Chill Advisory | LOT | 44 hr |
| Jan 30, 5:26 AM CST | Winter Storm Watch | LOT | 6 hr |
| Jan 30, 11:34 AM CST | Blizzard Watch | LOT | 28 hr |
| Jan 31, 3:20 PM CST | Blizzard Warning | LOT | 48 hr |
| Feb 1, 3:36 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 2, 2:33 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 2, 4:31 AM CST | Wind Chill Watch | LOT | 11 hr |
| Feb 2, 3:26 PM CST | Wind Chill Advisory | LOT | 19 hr |
| Feb 8, 3:50 AM CST | Wind Chill Advisory | LOT | 29 hr |
| Feb 9, 3:09 PM CST | Wind Chill Advisory | LOT | 19 hr |
| Feb 16, 8:32 PM CST | Dense Fog Advisory | LOT | 6 hr |
| Feb 19, 4:44 AM CST | Winter Storm Watch | LOT | 11 hr |
| Feb 19, 3:51 PM CST | Winter Storm Warning | LOT | 18 hr |
| Feb 20, 4:35 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 20, 9:30 PM CST | Winter Weather Advisory | LOT | 14 hr |
| Feb 21, 4:18 AM CST | Winter Weather Advisory | LOT | 24 hr |
| Feb 24, 4:12 AM CST | Winter Weather Advisory | LOT | 27 hr |
| Feb 26, 9:12 PM CST | Freezing Rain Advisory | LOT | 7 hr |
| Feb 27, 3:37 PM CST | Winter Weather Advisory | LOT | 12 hr |
| Feb 27, 8:49 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 20, 1:29 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Mar 20, 2:51 PM CDT | Special Weather Statement | LOT | 24 min |
| Mar 20, 3:07 PM CDT | Areal Flood Advisory | LOT | 7 hr |
| Mar 23, 12:00 AM CDT | Special Weather Statement | LOT | 30 min |
| Apr 3, 7:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 3, 8:54 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 3, 10:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Apr 7, 5:13 AM CDT | Dense Fog Advisory | LOT | 7 hr |
| Apr 10, 6:05 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 10, 9:27 PM CDT | Severe Thunderstorm Warning | LOT | 53 min |
| Apr 15, 4:12 AM CDT | Wind Advisory | LOT | 16 hr |
| Apr 28, 8:15 PM CDT | Frost Advisory | LOT | 12 hr |
| May 2, 4:02 PM CDT | Frost Advisory | LOT | 15 hr |
| May 3, 4:02 PM CDT | Frost Advisory | LOT | 16 hr |
| May 11, 12:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 11, 1:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 11, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 5:56 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 13, 7:04 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| May 13, 12:35 PM CDT | Severe Thunderstorm Warning | LOT | 55 min |
| May 13, 1:02 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 13, 1:33 PM CDT | Flash Flood Warning | LOT | 6 hr |
| May 16, 3:11 PM CDT | Frost Advisory | LOT | 16 hr |
| May 22, 4:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 1:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 22, 2:04 PM CDT | Tornado Watch | SPC | 9 hr |
| May 22, 5:13 PM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| May 22, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 22, 6:18 PM CDT | Severe Thunderstorm Warning | LOT | 50 min |
| May 22, 6:37 PM CDT | Tornado Warning | LOT | 38 min |
| May 22, 6:54 PM CDT | Tornado Warning | LOT | 51 min |
| May 22, 7:10 PM CDT | Areal Flood Advisory | LOT | 119 min |
| May 22, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | 60 min |
| May 22, 9:06 PM CDT | Flash Flood Warning | LOT | 5 hr |
| May 25, 7:49 AM CDT | Special Weather Statement | LOT | 41 min |
| May 29, 2:10 AM CDT | Dense Fog Advisory | LOT | 7 hr |
| May 29, 8:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| May 29, 8:53 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 10:34 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| May 29, 12:38 PM CDT | Flash Flood Warning | LOT | 5 hr |
| May 31, 12:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 6, 6:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 6, 7:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 8, 11:08 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 8, 4:49 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 8, 8:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 8, 8:46 PM CDT | Special Weather Statement | LOT | 29 min |
| Jun 8, 9:10 PM CDT | Severe Thunderstorm Warning | LOT | 65 min |
| Jun 8, 10:14 PM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Jun 8, 10:20 PM CDT | Severe Thunderstorm Warning | LOT | 55 min |
| Jun 8, 10:30 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Jun 8, 11:55 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Jun 9, 5:46 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 9, 3:24 PM CDT | Flash Flood Watch | LOT | 17 hr |
| Jun 21, 11:45 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 21, 5:42 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 30, 10:59 AM CDT | Heat Advisory | LOT | 34 hr |
| Jul 10, 2:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 5:07 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 11, 5:37 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 11, 6:16 AM CDT | Severe Thunderstorm Warning | LOT | 59 min |
| Jul 11, 7:03 AM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Jul 11, 7:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 17, 3:38 AM CDT | Heat Advisory | LOT | 16 hr |
| Jul 17, 3:40 PM CDT | Heat Advisory | LOT | 60 hr |
| Jul 18, 6:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 2:26 AM CDT | Excessive Heat Watch | LOT | 14 hr |
| Jul 19, 2:26 AM CDT | Excessive Heat Warning | LOT | 5 days |
| Jul 19, 1:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 19, 11:27 PM CDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Jul 21, 11:54 AM CDT | Special Weather Statement | LOT | 36 min |
| Jul 22, 3:50 AM CDT | Excessive Heat Watch | LOT | 24 hr |
| Jul 22, 7:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 23, 12:36 AM CDT | Flash Flood Warning | LOT | 6 hr |
| Jul 23, 12:41 AM CDT | Severe Thunderstorm Warning | LOT | 64 min |
| Jul 23, 6:30 AM CDT | Flash Flood Warning | LOT | 5 hr |
| Jul 23, 4:15 PM CDT | Flash Flood Watch | LOT | 18 hr |
| Jul 24, 6:19 AM CDT | Severe Thunderstorm Warning | LOT | 56 min |
| Jul 27, 8:43 AM CDT | Special Weather Statement | LOT | 62 min |
| Jul 27, 11:44 AM CDT | Flash Flood Watch | LOT | 43 hr |
| Jul 27, 6:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 7:43 PM CDT | Tornado Watch | SPC | 5 hr |
| Jul 27, 8:43 PM CDT | Severe Thunderstorm Warning | LOT | 62 min |
| Jul 27, 9:29 PM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Jul 27, 9:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 28, 12:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 28, 11:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 2, 3:38 AM CDT | Heat Advisory | LOT | 20 hr |
| Aug 2, 6:19 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 2, 12:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 2, 5:22 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 2, 5:36 PM CDT | Severe Thunderstorm Warning | LOT | 54 min |
| Aug 2, 8:39 PM CDT | Severe Thunderstorm Warning | LOT | 66 min |
| Aug 7, 3:40 PM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| Aug 8, 1:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 13, 11:29 AM CDT | Severe Thunderstorm Warning | LOT | 46 min |
| Aug 13, 5:17 PM CDT | Areal Flood Advisory | LOT | 2 hr |
| Aug 17, 3:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Aug 20, 8:10 AM CDT | Severe Thunderstorm Warning | LOT | 65 min |
| Aug 20, 8:53 AM CDT | Severe Thunderstorm Warning | LOT | 37 min |
| Aug 23, 7:26 AM CDT | Special Weather Statement | LOT | 64 min |
| Aug 23, 8:36 AM CDT | Special Weather Statement | LOT | 39 min |
| Sep 2, 2:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 3, 12:48 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 26, 11:47 AM CDT | Areal Flood Advisory | LOT | 14 hr |
| Sep 28, 3:37 PM CDT | Wind Advisory | LOT | 45 hr |
| Oct 1, 3:48 PM CDT | Frost Advisory | LOT | 16 hr |
| Oct 20, 3:46 AM CDT | Frost Advisory | LOT | 29 hr |
| Oct 27, 2:48 PM CDT | Frost Advisory | LOT | 16 hr |
| Oct 28, 3:42 PM CDT | Freeze Warning | LOT | 17 hr |
| Oct 29, 3:19 PM CDT | Frost Advisory | LOT | 17 hr |
| Nov 12, 4:08 PM CST | Wind Advisory | LOT | 26 hr |
| Nov 18, 10:20 AM CST | Wind Advisory | LOT | 7 hr |
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.