Alert archive / Illinois / Boone County
Weather alerts in Boone County, Illinois, 2018
143 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 143
- Warnings
- 26
- Watches
- 21
- Advisories
- 61
- Busiest month
- June26 alerts
- Busiest day
- September 3, 20187 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 3, 2:57 AM CST | Wind Chill Advisory | LOT | 33 hr |
| Jan 4, 2:48 PM CST | Wind Chill Advisory | LOT | 19 hr |
| Jan 5, 2:46 PM CST | Wind Chill Advisory | LOT | 19 hr |
| Jan 7, 2:53 AM CST | Winter Weather Advisory | LOT | 27 hr |
| Jan 10, 3:32 AM CST | Dense Fog Advisory | LOT | 4 hr |
| Jan 10, 8:56 AM CST | Dense Fog Advisory | LOT | 10 hr |
| Jan 11, 3:58 AM CST | Winter Weather Advisory | LOT | 32 hr |
| Jan 14, 1:45 PM CST | Winter Weather Advisory | LOT | 25 hr |
| Jan 21, 3:52 AM CST | Dense Fog Advisory | LOT | 26 hr |
| Jan 24, 4:49 AM CST | Winter Weather Advisory | LOT | 7 hr |
| Feb 4, 2:44 PM CST | Winter Weather Advisory | LOT | 33 hr |
| Feb 7, 3:32 AM CST | Winter Storm Watch | LOT | 23 hr |
| Feb 8, 2:54 AM CST | Winter Storm Warning | LOT | 42 hr |
| Feb 8, 9:07 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 9, 3:08 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 10, 2:37 PM CST | Winter Weather Advisory | LOT | 21 hr |
| Feb 14, 5:14 PM CST | Dense Fog Advisory | LOT | 25 hr |
| Feb 18, 3:36 AM CST | Dense Fog Advisory | LOT | 6 hr |
| Feb 18, 8:00 PM CST | Flood Watch | LOT | 55 hr |
| Feb 19, 8:24 PM CST | Dense Fog Advisory | LOT | 5 hr |
| Feb 20, 6:16 AM CST | River Flood Advisory | LOT | 3 days |
| Feb 20, 10:45 AM CST | Areal Flood Warning | LOT | 24 hr |
| Feb 20, 11:46 AM CST | River Flood Warning | LOT | 51 hr |
| Mar 4, 3:07 PM CST | Winter Weather Advisory | LOT | 33 hr |
| Mar 31, 5:38 AM CDT | Wind Advisory | LOT | 11 hr |
| Apr 13, 2:41 PM CDT | Wind Advisory | LOT | 28 hr |
| Apr 14, 9:27 PM CDT | Winter Weather Advisory | LOT | 22 hr |
| Apr 16, 3:15 AM CDT | Winter Weather Advisory | LOT | 6 hr |
| Apr 17, 2:44 PM CDT | Winter Weather Advisory | LOT | 34 hr |
| Apr 29, 8:55 PM CDT | Red Flag Warning | LOT | 23 hr |
| Apr 30, 4:35 PM CDT | Red Flag Warning | LOT | 26 hr |
| May 2, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 2, 5:46 PM CDT | Severe Thunderstorm Warning | LOT | 44 min |
| May 2, 6:20 PM CDT | Severe Thunderstorm Warning | LOT | 40 min |
| May 2, 6:34 PM CDT | Severe Thunderstorm Warning | LOT | 41 min |
| May 2, 7:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 2, 8:31 PM CDT | Severe Thunderstorm Warning | LOT | 59 min |
| May 2, 8:51 PM CDT | Flash Flood Watch | LOT | 11 hr |
| May 9, 3:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 14, 2:40 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 14, 5:09 AM CDT | Special Weather Statement | LOT | 36 min |
| May 14, 2:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 21, 9:52 PM CDT | Dense Fog Advisory | LOT | 12 hr |
| May 30, 3:39 PM CDT | Areal Flood Warning | LOT | 15 hr |
| Jun 9, 2:35 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jun 9, 2:57 AM CDT | Flash Flood Warning | LOT | 3 hr |
| Jun 9, 10:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 9, 11:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 5:50 AM CDT | Special Weather Statement | LOT | 40 min |
| Jun 16, 9:21 AM CDT | Heat Advisory | LOT | 58 hr |
| Jun 18, 5:51 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jun 18, 6:11 PM CDT | Flash Flood Warning | LOT | 6 hr |
| Jun 18, 6:22 PM CDT | Severe Thunderstorm Warning | LOT | 38 min |
| Jun 18, 9:40 PM CDT | River Flood Advisory | LOT | 66 hr |
| Jun 19, 12:01 AM CDT | Areal Flood Warning | LOT | 12 hr |
| Jun 19, 2:11 AM CDT | River Flood Warning | LOT | 37 hr |
| Jun 21, 3:28 AM CDT | Flash Flood Watch | LOT | 34 hr |
| Jun 21, 9:39 AM CDT | River Flood Warning | LOT | 25 hr |
| Jun 21, 10:57 AM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jun 22, 12:24 PM CDT | River Flood Advisory | LOT | 3 days |
| Jun 26, 2:46 AM CDT | Flash Flood Watch | LOT | 22 hr |
| Jun 26, 1:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 26, 1:44 PM CDT | Special Weather Statement | LOT | 61 min |
| Jun 26, 2:49 PM CDT | Special Weather Statement | LOT | 56 min |
| Jun 26, 3:46 PM CDT | Special Weather Statement | LOT | 59 min |
| Jun 26, 4:31 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jun 26, 7:35 PM CDT | Areal Flood Warning | LOT | 115 min |
| Jun 26, 9:28 PM CDT | River Flood Advisory | LOT | 5 days |
| Jun 27, 3:09 PM CDT | Excessive Heat Watch | LOT | 36 hr |
| Jun 28, 2:44 PM CDT | Excessive Heat Warning | LOT | 3 days |
| Jul 1, 11:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 1, 12:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 1, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 1, 2:59 PM CDT | Special Weather Statement | LOT | 61 min |
| Jul 1, 3:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 3, 2:38 PM CDT | Heat Advisory | LOT | 49 hr |
| Aug 3, 5:40 AM CDT | Dense Fog Advisory | LOT | 2 hr |
| Aug 5, 7:58 PM CDT | Severe Thunderstorm Watch | SPC | 83 min |
| Aug 5, 8:15 PM CDT | Special Weather Statement | LOT | 30 min |
| Aug 9, 2:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 9, 5:59 PM CDT | Special Weather Statement | LOT | 61 min |
| Aug 9, 6:59 PM CDT | Special Weather Statement | LOT | 61 min |
| Aug 10, 3:10 AM CDT | Dense Fog Advisory | LOT | 6 hr |
| Aug 16, 3:17 AM CDT | Dense Fog Advisory | LOT | 6 hr |
| Aug 19, 4:21 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Aug 20, 4:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 26, 3:07 AM CDT | Dense Fog Advisory | LOT | 6 hr |
| Aug 28, 7:05 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Aug 28, 7:37 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 28, 8:04 PM CDT | Flash Flood Watch | LOT | 8 hr |
| Aug 28, 8:29 PM CDT | Special Weather Statement | LOT | 46 min |
| Aug 28, 8:58 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Sep 1, 3:07 PM CDT | Flash Flood Watch | LOT | 13 hr |
| Sep 1, 10:21 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Sep 2, 12:34 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Sep 2, 10:07 AM CDT | River Flood Advisory | LOT | 25 hr |
| Sep 2, 2:38 PM CDT | Flash Flood Watch | LOT | 16 hr |
| Sep 2, 3:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Sep 2, 7:02 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Sep 2, 7:12 PM CDT | Special Weather Statement | LOT | 48 min |
| Sep 3, 1:00 AM CDT | Areal Flood Advisory | LOT | 10 hr |
| Sep 3, 10:37 AM CDT | River Flood Watch | LOT | 38 hr |
| Sep 3, 12:38 PM CDT | Areal Flood Advisory | LOT | 52 min |
| Sep 3, 12:58 PM CDT | Flash Flood Watch | LOT | 11 hr |
| Sep 3, 1:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 3, 9:15 PM CDT | River Flood Warning | LOT | 61 hr |
| Sep 11, 4:36 AM CDT | Dense Fog Advisory | LOT | 4 hr |
| Sep 20, 3:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Sep 25, 1:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Sep 25, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 25, 3:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 25, 4:01 PM CDT | Severe Thunderstorm Warning | LOT | 59 min |
| Sep 28, 3:31 AM CDT | Frost Advisory | LOT | 7 hr |
| Sep 28, 3:31 AM CDT | Frost Advisory | LOT | 28 hr |
| Oct 1, 7:41 PM CDT | Special Weather Statement | LOT | 34 min |
| Oct 3, 11:11 PM CDT | Special Weather Statement | LOT | 34 min |
| Oct 4, 3:16 PM CDT | Flash Flood Watch | LOT | 42 hr |
| Oct 5, 11:03 AM CDT | River Flood Watch | LOT | 48 hr |
| Oct 6, 3:07 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Oct 7, 11:01 AM CDT | River Flood Warning | LOT | 30 hr |
| Oct 7, 2:40 PM CDT | Flash Flood Watch | LOT | 13 hr |
| Oct 9, 2:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 10, 9:37 PM CDT | River Flood Advisory | LOT | 12 hr |
| Oct 11, 3:23 AM CDT | Freeze Warning | LOT | 28 hr |
| Oct 12, 2:37 PM CDT | Freeze Warning | LOT | 18 hr |
| Oct 15, 1:14 PM CDT | Freeze Warning | LOT | 19 hr |
| Oct 20, 9:47 AM CDT | Wind Advisory | LOT | 8 hr |
| Oct 27, 2:36 PM CDT | Wind Advisory | LOT | 27 hr |
| Nov 23, 2:16 PM CST | Winter Storm Watch | LOT | 23 hr |
| Nov 24, 1:44 PM CST | Winter Storm Warning | LOT | 43 hr |
| Nov 25, 11:37 AM CST | Blizzard Warning | LOT | 18 hr |
| Nov 25, 11:54 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 25, 6:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 30, 3:35 AM CST | Dense Fog Advisory | LOT | 6 hr |
| Dec 2, 10:12 AM CST | River Flood Advisory | LOT | 10 hr |
| Dec 3, 7:13 PM CST | River Flood Advisory | LOT | 41 hr |
| Dec 9, 9:45 PM CST | Dense Fog Advisory | LOT | 16 hr |
| Dec 11, 1:12 PM CST | Winter Weather Advisory | LOT | 14 hr |
| Dec 14, 4:10 PM CST | Dense Fog Advisory | LOT | 18 hr |
| Dec 16, 12:54 AM CST | Dense Fog Advisory | LOT | 9 hr |
| Dec 20, 9:34 AM CST | Dense Fog Advisory | LOT | 8 hr |
| Dec 28, 4:07 PM CST | Winter Weather Advisory | LOT | 8 hr |
| Dec 30, 2:21 PM CST | Winter Weather Advisory | LOT | 18 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 archive20172019
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.